Version 1.92.7

Amend 3aba95060e

.github/pull_request_template.md

@@ -2,7 +2,9 @@
 
 1. PLEASE CAREFULLY READ: [Contributing Guidelines](https://github.com/ocornut/imgui/blob/master/docs/CONTRIBUTING.md)
 
-2. Make sure you're using a special branch just for this pull request. (Sometimes people unknowingly use a default branch, then later update that branch, which updates the pull request with the other changes if it hasn't been merged yet.)
+2. **Make sure you're using a special branch just for this pull request**. (In git, 1 PR = 1 branch. If you update the branch the PR will be updated.)
 
-3. Clear this template before submitting your PR.
+3. Consider running the [imgui_test_suite](https://github.com/ocornut/imgui_test_engine) or adding new tests to test for expected behaviors.
+
+4. Clear this template before submitting your PR.
 

.github/workflows/build.yml

@@ -16,13 +16,21 @@ on:
       - requested
 
 jobs:
-  Windows:
+  Build-Windows:
     runs-on: windows-2025
+    name: Build - Windows
+
+    defaults:
+      run:
+        working-directory: ${{ github.workspace }}/imgui
+
     env:
       VS_PATH: C:\Program Files\Microsoft Visual Studio\2022\Enterprise\
       MSBUILD_PATH: C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+        with:
+          path: ${{ github.workspace }}/imgui
 
       # The VulkanSDK libs for Windows is manually generated using build_windows_vulkan_libs.ps1 + attached to issue #8925.
       # (we have a .yml workflow in commit history if it becomes ever useful to create this on CI too)
@@ -61,7 +69,7 @@ jobs:
           echo '#define IMGUI_IMPLEMENTATION'                    >> example_single_file.cpp
           echo '#include "misc/single_file/imgui_single_file.h"' >> example_single_file.cpp
           g++ -I. -Wall -Wformat -shared -o libimgui.dll -Wl,--out-implib,libimgui.a example_single_file.cpp -limm32
-          g++ -I. -Wall -Wformat -DIMGUI_API='__declspec(dllimport)' -o example_null.exe examples/example_null/main.cpp -L. -limgui
+          g++ -I. -Wall -Wformat -DIMGUI_API='__declspec(dllimport)' -DIMGUI_IMPL_API= -o example_null.exe examples/example_null/main.cpp -L. -limgui
           rm -f example_null.exe libimgui.* example_single_file.*
 
       - name: Build example_null (extra warnings, msvc 64-bit)
@@ -106,7 +114,7 @@ jobs:
           echo #include "misc/single_file/imgui_single_file.h" >> example_single_file.cpp
 
           cl.exe /D_USRDLL /D_WINDLL /I. example_single_file.cpp /LD /FeImGui.dll /link
-          cl.exe /DIMGUI_API=__declspec(dllimport) /I. ImGui.lib /Feexample_null.exe examples/example_null/main.cpp
+          cl.exe /DIMGUI_API=__declspec(dllimport) -DIMGUI_IMPL_API= /I. ImGui.lib /Feexample_null.exe examples/example_null/main.cpp
 
       # Win64 examples are more frequently compilted than the Win32 examples.
       # More of the Win32 examples requires 'workflow_run' to reduce waste.
@@ -257,10 +265,18 @@ jobs:
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx12/example_win32_directx12.vcxproj /p:Platform=x64 /p:Configuration=Release'
 
-  Linux:
+  Build-Linux:
     runs-on: ubuntu-latest
+    name: Build - Linux
+
+    defaults:
+      run:
+        working-directory: ${{ github.workspace }}/imgui
+
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
+      with:
+        path: ${{ github.workspace }}/imgui
 
     - name: Install Dependencies
       run: |
@@ -327,7 +343,7 @@ jobs:
         EOF
         g++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
 
-    - name: Build example_null (with large ImDrawIdx + pointer ImTextureID)
+    - name: Build example_null (with large ImDrawIdx + custom ImTextureID)
       run: |
         cat > example_single_file.cpp <<'EOF'
 
@@ -340,6 +356,21 @@ jobs:
         EOF
         g++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
 
+        cat > example_single_file.cpp <<'EOF'
+
+        // Test build ImTextureID defined as a struct
+        struct SomeType { int a = 0; int b = 0; };
+        #define ImTextureID SomeType
+        #define ImTextureID_Invalid SomeType()
+        inline bool operator==(const SomeType& lhs, const SomeType& rhs) { return lhs.a == rhs.a && lhs.b == rhs.b; }
+        inline bool operator!=(const SomeType& lhs, const SomeType& rhs) { return lhs.a != rhs.a || lhs.b != rhs.b; }
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        g++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
+
     - name: Build example_null (with IMGUI_DISABLE_OBSOLETE_FUNCTIONS)
       run: |
         cat > example_single_file.cpp <<'EOF'
@@ -474,10 +505,18 @@ jobs:
     - name: Build with IMGUI_IMPL_VULKAN_NO_PROTOTYPES
       run: g++ -c -I. -std=c++11 -DIMGUI_IMPL_VULKAN_NO_PROTOTYPES=1 backends/imgui_impl_vulkan.cpp
 
-  MacOS:
+  Build-MacOS:
     runs-on: macos-latest
+    name: Build - MacOS
+
+    defaults:
+      run:
+        working-directory: ${{ github.workspace }}/imgui
+
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
+      with:
+        path: ${{ github.workspace }}/imgui
 
     - name: Install Dependencies
       run: |
@@ -486,7 +525,7 @@ jobs:
     - name: Build example_null (extra warnings, clang 64-bit)
       run: make -C examples/example_null WITH_EXTRA_WARNINGS=1
 
-    - name: Build example_null (single file build)
+    - name: Build macOS example_null (single file build)
       run: |
         cat > example_single_file.cpp <<'EOF'
 
@@ -497,7 +536,7 @@ jobs:
         EOF
         clang++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
 
-    - name: Build example_null (single file build, c++20)
+    - name: Build macOS example_null (single file build, c++20)
       run: |
         cat > example_single_file.cpp <<'EOF'
 
@@ -508,7 +547,7 @@ jobs:
         EOF
         clang++ -I. -std=c++20 -Wall -Wformat -o example_single_file example_single_file.cpp
 
-    - name: Build example_null (without c++ runtime)
+    - name: Build macOS example_null (without c++ runtime)
       run: |
         cat > example_single_file.cpp <<'EOF'
 
@@ -519,49 +558,57 @@ jobs:
         EOF
         clang++ -I. -std=c++11 -Wall -Wformat -nodefaultlibs -fno-rtti -fno-exceptions -fno-threadsafe-statics -lc -lm -o example_single_file example_single_file.cpp
 
-    - name: Build example_glfw_opengl2
+    - name: Build macOS example_glfw_opengl2
       run: make -C examples/example_glfw_opengl2
+      if: github.event_name == 'workflow_run'
 
-    - name: Build example_glfw_opengl3
+    - name: Build macOS example_glfw_opengl3
       run: make -C examples/example_glfw_opengl3
       if: github.event_name == 'workflow_run'
 
-    - name: Build example_glfw_metal
+    - name: Build macOS example_glfw_metal
       run: make -C examples/example_glfw_metal
 
-    - name: Build example_sdl2_metal
+    - name: Build macOS example_sdl2_metal
       run: make -C examples/example_sdl2_metal
 
-    - name: Build example_sdl2_opengl2
+    - name: Build macOS example_sdl2_opengl2
       run: make -C examples/example_sdl2_opengl2
       if: github.event_name == 'workflow_run'
 
-    - name: Build example_sdl2_opengl3
+    - name: Build macOS example_sdl2_opengl3
       run: make -C examples/example_sdl2_opengl3
+      if: github.event_name == 'workflow_run'
 
-    - name: Build example_sdl3_opengl3
+    - name: Build macOS example_sdl3_opengl3
       run: make -C examples/example_sdl3_opengl3
 
-    - name: Build example_apple_metal
+    - name: Build macOS example_apple_metal
       run: xcodebuild -project examples/example_apple_metal/example_apple_metal.xcodeproj -target example_apple_metal_macos
+      if: github.event_name == 'workflow_run'
 
-    - name: Build example_apple_opengl2
+    - name: Build macOS example_apple_opengl2
       run: xcodebuild -project examples/example_apple_opengl2/example_apple_opengl2.xcodeproj -target example_osx_opengl2
+      if: github.event_name == 'workflow_run'
 
-  iOS:
+  Build-iOS:
     runs-on: macos-14
+    name: Build - iOS
+
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     - name: Build example_apple_metal
       run: |
         # Code signing is required, but we disable it because it is irrelevant for CI builds.
         xcodebuild -project examples/example_apple_metal/example_apple_metal.xcodeproj -target example_apple_metal_ios CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO CODE_SIGNING_ALLOWED=NO
 
-  Emscripten:
+  Build-Emscripten:
     runs-on: ubuntu-latest
+    name: Build - Emscripten
+
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     - name: Install Dependencies
       run: |
@@ -599,12 +646,148 @@ jobs:
         emcmake cmake -B build -DCMAKE_BUILD_TYPE=Release examples/example_glfw_wgpu
         cmake --build build
 
-  Android:
+  Build-Android:
     runs-on: ubuntu-latest
+    name: Build - Android
+
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     - name: Build example_android_opengl3
       run: |
         cd examples/example_android_opengl3/android
         gradle assembleDebug --stacktrace
+
+  Test-Windows:
+    runs-on: windows-2025
+    name: Test - Windows
+
+    defaults:
+      run:
+        working-directory: ${{ github.workspace }}/imgui
+
+    env:
+      MSBUILD_PATH: C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\
+
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          path: ${{ github.workspace }}/imgui
+
+      - uses: actions/checkout@v6
+        continue-on-error: true
+        with:
+          fetch-depth: 1
+          repository: ocornut/imgui_test_engine
+          path: ${{ github.workspace }}/imgui_test_engine
+          submodules: true
+
+      - name: Fix Tests Projects
+        shell: powershell
+        working-directory: ${{ github.workspace }}/imgui_test_engine
+        run: |
+          # WARNING: This will need updating if toolset/sdk change in project files!
+          gci -recurse -filter "*.vcxproj" | ForEach-Object {
+            # Fix SDK and toolset for most samples.
+            (Get-Content $_.FullName) -Replace "<PlatformToolset>v110</PlatformToolset>","<PlatformToolset>v142</PlatformToolset>" | Set-Content -Path $_.FullName
+            (Get-Content $_.FullName) -Replace "<WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>","<WindowsTargetPlatformVersion>10.0.20348.0</WindowsTargetPlatformVersion>" | Set-Content -Path $_.FullName
+            # Fix SDK and toolset for samples that require newer SDK/toolset. At the moment it is only dx12.
+            (Get-Content $_.FullName) -Replace "<PlatformToolset>v140</PlatformToolset>","<PlatformToolset>v142</PlatformToolset>" | Set-Content -Path $_.FullName
+            (Get-Content $_.FullName) -Replace "<WindowsTargetPlatformVersion>10.0.14393.0</WindowsTargetPlatformVersion>","<WindowsTargetPlatformVersion>10.0.20348.0</WindowsTargetPlatformVersion>" | Set-Content -Path $_.FullName
+          }
+
+      - name: Build Tests
+        shell: cmd
+        working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+        run: '"%MSBUILD_PATH%\MSBuild.exe" imgui_test_suite.vcxproj /p:Platform=x64 /p:Configuration=Release /p:ClFlags=/WX -maxcpucount:%NUMBER_OF_PROCESSORS%'
+
+      - name: Run Tests
+        working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+        run: Release/imgui_test_suite.exe -nogui -nopause -v2 -ve4 tests
+
+      - name: Check for Docking
+        id: check_docking
+        shell: bash
+        working-directory: ${{ github.workspace }}/imgui
+        run: echo "has_dock=$(grep -q "#define IMGUI_HAS_DOCK" imgui.h && echo true || echo false)" >> $GITHUB_OUTPUT
+
+      - name: Run Viewport Tests
+        if: steps.check_docking.outputs.has_dock == 'true'
+        working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+        run: Release/imgui_test_suite.exe -nogui -nopause -v2 -ve4 -viewport-mock viewport
+
+  Test-Linux:
+    runs-on: ubuntu-latest
+    name: Test - Linux
+
+    defaults:
+      run:
+        working-directory: ${{ github.workspace }}/imgui
+
+    steps:
+    - uses: actions/checkout@v6
+      with:
+        path: ${{ github.workspace }}/imgui
+
+    - uses: actions/checkout@v6
+      with:
+        fetch-depth: 1
+        repository: ocornut/imgui_test_engine
+        path: ${{ github.workspace }}/imgui_test_engine
+        submodules: true
+
+    - name: Build Tests
+      working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+      run: make -j$(nproc)
+
+    - name: Run Tests
+      working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+      run: ./imgui_test_suite -nogui -nopause -v2 -ve4 tests
+
+    - name: Check for Docking
+      id: check_docking
+      working-directory: ${{ github.workspace }}/imgui
+      run: echo "has_dock=$(grep -q "#define IMGUI_HAS_DOCK" imgui.h && echo true || echo false)" >> $GITHUB_OUTPUT
+
+    - name: Run Viewport Tests
+      if: steps.check_docking.outputs.has_dock == 'true'
+      working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+      run: ./imgui_test_suite -nogui -nopause -v2 -ve4 -viewport-mock viewport
+
+#  Test-MacOS:
+#    runs-on: macos-latest
+#    name: Test - MacOS
+#
+#    defaults:
+#      run:
+#        working-directory: ${{ github.workspace }}/imgui
+#
+#    steps:
+#    - uses: actions/checkout@v6
+#      with:
+#        path: ${{ github.workspace }}/imgui
+#
+#    - uses: actions/checkout@v6
+#      with:
+#        fetch-depth: 1
+#        repository: ocornut/imgui_test_engine
+#        path: ${{ github.workspace }}/imgui_test_engine
+#        submodules: true
+#
+#    - name: Build Tests
+#      working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+#      run: make -j$(nproc)
+#
+#    - name: Run Tests
+#      working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+#      run: ./imgui_test_suite -nogui -nopause -v2 -ve4 tests
+#
+#    - name: Check for Docking
+#      id: check_docking
+#      working-directory: ${{ github.workspace }}/imgui
+#      run: echo "has_dock=$(grep -q "#define IMGUI_HAS_DOCK" imgui.h && echo true || echo false)" >> $GITHUB_OUTPUT
+#
+#    - name: Run Viewport Tests
+#      if: steps.check_docking.outputs.has_dock == 'true'
+#      working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+#      run: ./imgui_test_suite -nogui -nopause -v2 -ve4 -viewport-mock viewport

.github/workflows/static-analysis.yml

@@ -12,7 +12,7 @@ jobs:
   PVS-Studio:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 1
 

.gitignore

@@ -12,6 +12,7 @@ imgui*.ini
 examples/*/Debug/*
 examples/*/Release/*
 examples/*/x64/*
+examples/*.tmp
 
 ## Visual Studio artifacts
 .vs
@@ -46,6 +47,9 @@ examples/example_glfw_opengl3/web/*
 examples/example_glfw_wgpu/web/*
 examples/example_glfw_wgpu/external/*
 examples/example_sdl2_opengl3/web/*
+examples/example_sdl2_wgpu/web/*
+examples/example_sdl3_opengl3/web/*
+examples/example_sdl3_wgpu/web/*
 
 ## JetBrains IDE artifacts
 .idea

LICENSE.txt

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2014-2025 Omar Cornut
+Copyright (c) 2014-2026 Omar Cornut
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

backends/imgui_impl_allegro5.cpp

@@ -524,7 +524,7 @@ void ImGui_ImplAllegro5_SetDisplay(ALLEGRO_DISPLAY* display)
     if (bd->VertexDecl)
     {
         al_destroy_vertex_decl(bd->VertexDecl);
-        bd->VertexDecl = NULL;
+        bd->VertexDecl = nullptr;
     }
 
     if (bd->Display && !bd->VertexDecl)

backends/imgui_impl_allegro5.h

@@ -38,7 +38,7 @@ IMGUI_IMPL_API void     ImGui_ImplAllegro5_SetDisplay(ALLEGRO_DISPLAY* display);
 IMGUI_IMPL_API bool     ImGui_ImplAllegro5_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplAllegro5_InvalidateDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void     ImGui_ImplAllegro5_UpdateTexture(ImTextureData* tex);
 
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_dx10.cpp

@@ -16,6 +16,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-01-19: DirectX11: Added 'SamplerNearest' in ImGui_ImplDX11_RenderState. Renamed 'SamplerDefault' to 'SamplerLinear'. 
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-11: DirectX10: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
 //  2025-05-07: DirectX10: Honor draw_data->FramebufferScale to allow for custom backends and experiment using it (consistently with other renderer backends, even though in normal condition it is not set under Windows).
@@ -75,6 +76,7 @@ struct ImGui_ImplDX10_Data
     ID3D10Buffer*               pVertexConstantBuffer;
     ID3D10PixelShader*          pPixelShader;
     ID3D10SamplerState*         pTexSamplerLinear;
+    ID3D10SamplerState*         pTexSamplerNearest;
     ID3D10RasterizerState*      pRasterizerState;
     ID3D10BlendState*           pBlendState;
     ID3D10DepthStencilState*    pDepthStencilState;
@@ -258,7 +260,8 @@ void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
     ImGui_ImplDX10_RenderState render_state;
     render_state.Device = bd->pd3dDevice;
-    render_state.SamplerDefault = bd->pTexSamplerLinear;
+    render_state.SamplerLinear = bd->pTexSamplerLinear;
+    render_state.SamplerNearest = bd->pTexSamplerNearest;
     render_state.VertexConstantBuffer = bd->pVertexConstantBuffer;
     platform_io.Renderer_RenderState = &render_state;
 
@@ -565,6 +568,8 @@ bool    ImGui_ImplDX10_CreateDeviceObjects()
         desc.MinLOD = 0.f;
         desc.MaxLOD = 0.f;
         bd->pd3dDevice->CreateSamplerState(&desc, &bd->pTexSamplerLinear);
+        desc.Filter = D3D10_FILTER_MIN_MAG_MIP_POINT;
+        bd->pd3dDevice->CreateSamplerState(&desc, &bd->pTexSamplerNearest);
     }
 
     return true;
@@ -581,6 +586,7 @@ void    ImGui_ImplDX10_InvalidateDeviceObjects()
         if (tex->RefCount == 1)
             ImGui_ImplDX10_DestroyTexture(tex);
     if (bd->pTexSamplerLinear)      { bd->pTexSamplerLinear->Release(); bd->pTexSamplerLinear = nullptr; }
+    if (bd->pTexSamplerNearest)     { bd->pTexSamplerNearest->Release(); bd->pTexSamplerNearest = nullptr; }
     if (bd->pIB)                    { bd->pIB->Release(); bd->pIB = nullptr; }
     if (bd->pVB)                    { bd->pVB->Release(); bd->pVB = nullptr; }
     if (bd->pBlendState)            { bd->pBlendState->Release(); bd->pBlendState = nullptr; }

backends/imgui_impl_dx10.h

@@ -32,7 +32,7 @@ IMGUI_IMPL_API void     ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data);
 IMGUI_IMPL_API bool     ImGui_ImplDX10_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplDX10_InvalidateDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void     ImGui_ImplDX10_UpdateTexture(ImTextureData* tex);
 
 // [BETA] Selected render state data shared with callbacks.
@@ -41,7 +41,8 @@ IMGUI_IMPL_API void     ImGui_ImplDX10_UpdateTexture(ImTextureData* tex);
 struct ImGui_ImplDX10_RenderState
 {
     ID3D10Device*           Device;
-    ID3D10SamplerState*     SamplerDefault;
+    ID3D10SamplerState*     SamplerLinear;
+    ID3D10SamplerState*     SamplerNearest;
     ID3D10Buffer*           VertexConstantBuffer;
 };
 

backends/imgui_impl_dx11.cpp

@@ -17,6 +17,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-01-19: DirectX11: Added 'SamplerNearest' in ImGui_ImplDX11_RenderState. Renamed 'SamplerDefault' to 'SamplerLinear'.
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-11: DirectX11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
 //  2025-05-07: DirectX11: Honor draw_data->FramebufferScale to allow for custom backends and experiment using it (consistently with other renderer backends, even though in normal condition it is not set under Windows).
@@ -78,6 +79,7 @@ struct ImGui_ImplDX11_Data
     ID3D11Buffer*               pVertexConstantBuffer;
     ID3D11PixelShader*          pPixelShader;
     ID3D11SamplerState*         pTexSamplerLinear;
+    ID3D11SamplerState*         pTexSamplerNearest;
     ID3D11RasterizerState*      pRasterizerState;
     ID3D11BlendState*           pBlendState;
     ID3D11DepthStencilState*    pDepthStencilState;
@@ -272,7 +274,8 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
     ImGui_ImplDX11_RenderState render_state;
     render_state.Device = bd->pd3dDevice;
     render_state.DeviceContext = bd->pd3dDeviceContext;
-    render_state.SamplerDefault = bd->pTexSamplerLinear;
+    render_state.SamplerLinear = bd->pTexSamplerLinear;
+    render_state.SamplerNearest = bd->pTexSamplerNearest;
     render_state.VertexConstantBuffer = bd->pVertexConstantBuffer;
     platform_io.Renderer_RenderState = &render_state;
 
@@ -580,6 +583,8 @@ bool    ImGui_ImplDX11_CreateDeviceObjects()
         desc.MinLOD = 0.f;
         desc.MaxLOD = 0.f;
         bd->pd3dDevice->CreateSamplerState(&desc, &bd->pTexSamplerLinear);
+        desc.Filter = D3D11_FILTER_MIN_MAG_MIP_POINT;
+        bd->pd3dDevice->CreateSamplerState(&desc, &bd->pTexSamplerNearest);
     }
 
     return true;
@@ -597,6 +602,7 @@ void    ImGui_ImplDX11_InvalidateDeviceObjects()
             ImGui_ImplDX11_DestroyTexture(tex);
 
     if (bd->pTexSamplerLinear)      { bd->pTexSamplerLinear->Release(); bd->pTexSamplerLinear = nullptr; }
+    if (bd->pTexSamplerNearest)     { bd->pTexSamplerNearest->Release(); bd->pTexSamplerNearest = nullptr; }
     if (bd->pIB)                    { bd->pIB->Release(); bd->pIB = nullptr; }
     if (bd->pVB)                    { bd->pVB->Release(); bd->pVB = nullptr; }
     if (bd->pBlendState)            { bd->pBlendState->Release(); bd->pBlendState = nullptr; }

backends/imgui_impl_dx11.h

@@ -34,7 +34,7 @@ IMGUI_IMPL_API void     ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data);
 IMGUI_IMPL_API bool     ImGui_ImplDX11_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplDX11_InvalidateDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void     ImGui_ImplDX11_UpdateTexture(ImTextureData* tex);
 
 // [BETA] Selected render state data shared with callbacks.
@@ -44,7 +44,8 @@ struct ImGui_ImplDX11_RenderState
 {
     ID3D11Device*           Device;
     ID3D11DeviceContext*    DeviceContext;
-    ID3D11SamplerState*     SamplerDefault;
+    ID3D11SamplerState*     SamplerLinear;
+    ID3D11SamplerState*     SamplerNearest;
     ID3D11Buffer*           VertexConstantBuffer;
 };
 

backends/imgui_impl_dx12.cpp

@@ -93,8 +93,10 @@ struct ImGui_ImplDX12_Data
     ImGui_ImplDX12_InitInfo     InitInfo;
     IDXGIFactory5*              pdxgiFactory;
     ID3D12Device*               pd3dDevice;
-    ID3D12RootSignature*        pRootSignature;
-    ID3D12PipelineState*        pPipelineState;
+    ID3D12RootSignature*        pRootSignatureLinear;
+    ID3D12RootSignature*        pRootSignatureNearest;
+    ID3D12PipelineState*        pPipelineStateLinear;
+    ID3D12PipelineState*        pPipelineStateNearest;
     ID3D12CommandQueue*         pCommandQueue;
     bool                        commandQueueOwned;
     DXGI_FORMAT                 RTVFormat;
@@ -140,11 +142,27 @@ struct VERTEX_CONSTANT_BUFFER_DX12
     float   mvp[4][4];
 };
 
+// FIXME-WIP: Allow user to forward declare those two, for until we come up with a backend agnostic API to do this. (#9173)
+void ImGui_ImplDX12_SetupSamplerLinear(ID3D12GraphicsCommandList* command_list);
+void ImGui_ImplDX12_SetupSamplerNearest(ID3D12GraphicsCommandList* command_list);
+
 // Functions
-static void ImGui_ImplDX12_SetupRenderState(ImDrawData* draw_data, ID3D12GraphicsCommandList* command_list, ImGui_ImplDX12_RenderBuffers* fr)
+void ImGui_ImplDX12_SetupSamplerLinear(ID3D12GraphicsCommandList* command_list)
 {
     ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
+    command_list->SetPipelineState(bd->pPipelineStateLinear);
+    command_list->SetGraphicsRootSignature(bd->pRootSignatureLinear);
+}
 
+void ImGui_ImplDX12_SetupSamplerNearest(ID3D12GraphicsCommandList* command_list)
+{
+    ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
+    command_list->SetPipelineState(bd->pPipelineStateNearest);
+    command_list->SetGraphicsRootSignature(bd->pRootSignatureNearest);
+}
+
+static void ImGui_ImplDX12_SetupRenderState(ImDrawData* draw_data, ID3D12GraphicsCommandList* command_list, ImGui_ImplDX12_RenderBuffers* fr)
+{
     // Setup orthographic projection matrix into our constant buffer
     // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
     VERTEX_CONSTANT_BUFFER_DX12 vertex_constant_buffer;
@@ -186,8 +204,7 @@ static void ImGui_ImplDX12_SetupRenderState(ImDrawData* draw_data, ID3D12Graphic
     ibv.Format = sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT;
     command_list->IASetIndexBuffer(&ibv);
     command_list->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
-    command_list->SetPipelineState(bd->pPipelineState);
-    command_list->SetGraphicsRootSignature(bd->pRootSignature);
+    ImGui_ImplDX12_SetupSamplerLinear(command_list);
     command_list->SetGraphicsRoot32BitConstants(0, 16, &vertex_constant_buffer, 0);
 
     // Setup blend factor
@@ -555,7 +572,7 @@ bool    ImGui_ImplDX12_CreateDeviceObjects()
     ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
     if (!bd || !bd->pd3dDevice)
         return false;
-    if (bd->pPipelineState)
+    if (bd->pPipelineStateLinear)
         ImGui_ImplDX12_InvalidateDeviceObjects();
 
     HRESULT hr = ::CreateDXGIFactory1(IID_PPV_ARGS(&bd->pdxgiFactory));
@@ -624,7 +641,7 @@ bool    ImGui_ImplDX12_CreateDeviceObjects()
             // (2) there exists a version of d3d12.dll for Windows 7 (D3D12On7) in one of the following directories.
             // See https://github.com/ocornut/imgui/pull/3696 for details.
             const char* localD3d12Paths[] = { ".\\d3d12.dll", ".\\d3d12on7\\d3d12.dll", ".\\12on7\\d3d12.dll" }; // A. current directory, B. used by some games, C. used in Microsoft D3D12On7 sample
-            for (int i = 0; i < IM_ARRAYSIZE(localD3d12Paths); i++)
+            for (int i = 0; i < IM_COUNTOF(localD3d12Paths); i++)
                 if ((d3d12_dll = ::LoadLibraryA(localD3d12Paths[i])) != nullptr)
                     break;
 
@@ -644,7 +661,15 @@ bool    ImGui_ImplDX12_CreateDeviceObjects()
         if (D3D12SerializeRootSignatureFn(&desc, D3D_ROOT_SIGNATURE_VERSION_1, &blob, nullptr) != S_OK)
             return false;
 
-        bd->pd3dDevice->CreateRootSignature(0, blob->GetBufferPointer(), blob->GetBufferSize(), IID_PPV_ARGS(&bd->pRootSignature));
+        bd->pd3dDevice->CreateRootSignature(0, blob->GetBufferPointer(), blob->GetBufferSize(), IID_PPV_ARGS(&bd->pRootSignatureLinear));
+        blob->Release();
+
+        // Root Signature for ImDrawCallback_SetSamplerNearest
+        staticSampler[0].Filter = D3D12_FILTER_MIN_MAG_MIP_POINT;
+        if (D3D12SerializeRootSignatureFn(&desc, D3D_ROOT_SIGNATURE_VERSION_1, &blob, nullptr) != S_OK)
+            return false;
+
+        bd->pd3dDevice->CreateRootSignature(0, blob->GetBufferPointer(), blob->GetBufferSize(), IID_PPV_ARGS(&bd->pRootSignatureNearest));
         blob->Release();
     }
 
@@ -657,7 +682,7 @@ bool    ImGui_ImplDX12_CreateDeviceObjects()
     D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc = {};
     psoDesc.NodeMask = 1;
     psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
-    psoDesc.pRootSignature = bd->pRootSignature;
+    psoDesc.pRootSignature = bd->pRootSignatureLinear;
     psoDesc.SampleMask = UINT_MAX;
     psoDesc.NumRenderTargets = 1;
     psoDesc.RTVFormats[0] = bd->RTVFormat;
@@ -780,7 +805,18 @@ bool    ImGui_ImplDX12_CreateDeviceObjects()
         desc.BackFace = desc.FrontFace;
     }
 
-    HRESULT result_pipeline_state = bd->pd3dDevice->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&bd->pPipelineState));
+    HRESULT result_pipeline_state = bd->pd3dDevice->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&bd->pPipelineStateLinear));
+    if (result_pipeline_state != S_OK)
+    {
+        vertexShaderBlob->Release();
+        pixelShaderBlob->Release();
+        return false;
+    }
+
+    // Pipeline State for ImDrawCallback_SetSamplerNearest
+    psoDesc.pRootSignature = bd->pRootSignatureNearest;
+
+    result_pipeline_state = bd->pd3dDevice->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&bd->pPipelineStateNearest));
     vertexShaderBlob->Release();
     pixelShaderBlob->Release();
     if (result_pipeline_state != S_OK)
@@ -813,8 +849,11 @@ void    ImGui_ImplDX12_InvalidateDeviceObjects()
     if (bd->commandQueueOwned)
         SafeRelease(bd->pCommandQueue);
     bd->commandQueueOwned = false;
-    SafeRelease(bd->pRootSignature);
-    SafeRelease(bd->pPipelineState);
+    SafeRelease(bd->pRootSignatureLinear);
+    SafeRelease(bd->pRootSignatureNearest);
+    SafeRelease(bd->pPipelineStateLinear);
+    SafeRelease(bd->pPipelineStateNearest);
+
     if (bd->pTexUploadBufferMapped)
     {
         D3D12_RANGE range = { 0, bd->pTexUploadBufferSize };
@@ -875,7 +914,7 @@ bool ImGui_ImplDX12_Init(ImGui_ImplDX12_InitInfo* init_info)
     init_info = &bd->InitInfo;
 
     bd->pd3dDevice = init_info->Device;
-    IM_ASSERT(init_info->CommandQueue != NULL);
+    IM_ASSERT(init_info->CommandQueue != nullptr);
     bd->pCommandQueue = init_info->CommandQueue;
     bd->RTVFormat = init_info->RTVFormat;
     bd->DSVFormat = init_info->DSVFormat;
@@ -961,7 +1000,7 @@ void ImGui_ImplDX12_NewFrame()
     ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX12_Init()?");
 
-    if (!bd->pPipelineState)
+    if (!bd->pPipelineStateLinear)
         if (!ImGui_ImplDX12_CreateDeviceObjects())
             IM_ASSERT(0 && "ImGui_ImplDX12_CreateDeviceObjects() failed!");
 }

backends/imgui_impl_dx12.h

@@ -24,6 +24,12 @@
 #include <dxgiformat.h> // DXGI_FORMAT
 #include <d3d12.h>      // D3D12_CPU_DESCRIPTOR_HANDLE
 
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast
+#endif
+
 // Initialization data, for ImGui_ImplDX12_Init()
 struct ImGui_ImplDX12_InitInfo
 {
@@ -64,7 +70,7 @@ IMGUI_IMPL_API bool     ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames
 IMGUI_IMPL_API bool     ImGui_ImplDX12_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplDX12_InvalidateDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void     ImGui_ImplDX12_UpdateTexture(ImTextureData* tex);
 
 // [BETA] Selected render state data shared with callbacks.
@@ -76,4 +82,8 @@ struct ImGui_ImplDX12_RenderState
     ID3D12GraphicsCommandList*  CommandList;
 };
 
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_dx9.cpp

@@ -17,6 +17,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-03-19: Fixed issue in ImGui_ImplDX9_UpdateTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295, #9310)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-11: DirectX9: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
 //  2024-10-07: DirectX9: Changed default texture sampler to Clamp instead of Repeat/Wrap.
@@ -431,14 +432,15 @@ void ImGui_ImplDX9_UpdateTexture(ImTextureData* tex)
     }
     else if (tex->Status == ImTextureStatus_WantDestroy)
     {
-        if (LPDIRECT3DTEXTURE9 backend_tex = (LPDIRECT3DTEXTURE9)tex->TexID)
-        {
-            IM_ASSERT(tex->TexID == (ImTextureID)(intptr_t)backend_tex);
-            backend_tex->Release();
+        if (tex->TexID != ImTextureID_Invalid)
+            if (LPDIRECT3DTEXTURE9 backend_tex = (LPDIRECT3DTEXTURE9)tex->TexID)
+            {
+                IM_ASSERT(tex->TexID == (ImTextureID)(intptr_t)backend_tex);
+                backend_tex->Release();
 
-            // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
-            tex->SetTexID(ImTextureID_Invalid);
-        }
+                // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
+                tex->SetTexID(ImTextureID_Invalid);
+            }
         tex->SetStatus(ImTextureStatus_Destroyed);
     }
 }

backends/imgui_impl_dx9.h

@@ -31,7 +31,7 @@ IMGUI_IMPL_API void     ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data);
 IMGUI_IMPL_API bool     ImGui_ImplDX9_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplDX9_InvalidateDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void     ImGui_ImplDX9_UpdateTexture(ImTextureData* tex);
 
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_glfw.cpp

@@ -1,18 +1,18 @@
 // dear imgui: Platform Backend for GLFW
 // This needs to be used along with a Renderer (e.g. OpenGL3, Vulkan, WebGPU..)
 // (Info: GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
-// (Requires: GLFW 3.1+. Prefer GLFW 3.3+ or GLFW 3.4+ for full feature support.)
+// (Requires: GLFW 3.0+. Prefer GLFW 3.3+/3.4+ for full feature support.)
 
 // Implemented features:
 //  [X] Platform: Clipboard support.
 //  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen (Windows only).
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy GLFW_KEY_* values are obsolete since 1.87 and not supported since 1.91.5]
 //  [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Resizing cursors requires GLFW 3.4+! Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors) with GLFW 3.1+. Resizing cursors requires GLFW 3.4+! Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [X] Multiple Dear ImGui contexts support.
 // Missing features or Issues:
-//  [ ] Touch events are only correctly identified as Touch on Windows. This create issues with some interactions. GLFW doesn't provide a way to identify touch inputs from mouse inputs, we cannot call io.AddMouseSourceEvent() to identify the source. We provide a Windows-specific workaround.
-//  [ ] Missing ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress cursors.
+//  [ ] Platform: Touch events are only correctly identified as Touch on Windows. This create issues with some interactions. GLFW doesn't provide a way to identify touch inputs from mouse inputs, we cannot call io.AddMouseSourceEvent() to identify the source. We provide a Windows-specific workaround.
+//  [ ] Platform: Missing ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress cursors.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -29,6 +29,11 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-03-25: Mouse cursor is properly restored if changed by user app/code while using glfwSetInputMode(..., GLFW_CURSOR_DISABLED) or ImGuiConfigFlags_NoMouseCursorChange. Amend change from 2025-12-10.
+//  2026-02-10: Try to set IMGUI_IMPL_GLFW_DISABLE_X11 / IMGUI_IMPL_GLFW_DISABLE_WAYLAND automatically if corresponding headers are not accessible. (#9225)
+//  2025-12-12: Added IMGUI_IMPL_GLFW_DISABLE_X11 / IMGUI_IMPL_GLFW_DISABLE_WAYLAND to forcefully disable either.
+//  2025-12-10: Avoid repeated glfwSetCursor()/glfwSetInputMode() calls when unnecessary. Lowers overhead for very high framerates (e.g. 10k+ FPS).
+//  2025-11-06: Lower minimum requirement to GLFW 3.0. Though a recent version e.g GLFW 3.4 is highly recommended.
 //  2025-09-18: Call platform_io.ClearPlatformHandlers() on shutdown.
 //  2025-09-15: Content Scales are always reported as 1.0 on Wayland. FramebufferScale are always reported as 1.0 on X11. (#8920, #8921)
 //  2025-07-08: Made ImGui_ImplGlfw_GetContentScaleForWindow(), ImGui_ImplGlfw_GetContentScaleForMonitor() helpers return 1.0f on Emscripten and Android platforms, matching macOS logic. (#8742, #8733)
@@ -100,15 +105,31 @@
 // Clang warnings with -Weverything
 #if defined(__clang__)
 #pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wold-style-cast"     // warning: use of old-style cast
-#pragma clang diagnostic ignored "-Wsign-conversion"    // warning: implicit conversion changes signedness
+#pragma clang diagnostic ignored "-Wold-style-cast"         // warning: use of old-style cast
+#pragma clang diagnostic ignored "-Wsign-conversion"        // warning: implicit conversion changes signedness
+#pragma clang diagnostic ignored "-Wexit-time-destructors"  // warning: declaration requires an exit-time destructor     // exit-time destruction order is undefined. if MemFree() leads to users code that has been disabled before exit it might cause problems. ImGui coding style welcomes static/globals.
+#pragma clang diagnostic ignored "-Wglobal-constructors"    // warning: declaration requires a global destructor         // similar to above, not sure what the exact difference is.
+#endif
+
+#if defined(__has_include)
+#if !__has_include(<X11/Xlib.h>) || !__has_include(<X11/extensions/Xrandr.h>)
+#define IMGUI_IMPL_GLFW_DISABLE_X11
+#endif
+#if !__has_include(<wayland-client.h>)
+#define IMGUI_IMPL_GLFW_DISABLE_WAYLAND
+#endif
 #endif
 
 // GLFW
-#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__)
-#define GLFW_HAS_X11_OR_WAYLAND     1
+#if !defined(IMGUI_IMPL_GLFW_DISABLE_X11) && (defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__))
+#define GLFW_HAS_X11        1
 #else
-#define GLFW_HAS_X11_OR_WAYLAND     0
+#define GLFW_HAS_X11        0
+#endif
+#if !defined(IMGUI_IMPL_GLFW_DISABLE_WAYLAND) && (defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__))
+#define GLFW_HAS_WAYLAND    1
+#else
+#define GLFW_HAS_WAYLAND    0
 #endif
 #include <GLFW/glfw3.h>
 #ifdef _WIN32
@@ -122,13 +143,10 @@
 #define GLFW_EXPOSE_NATIVE_COCOA
 #endif
 #include <GLFW/glfw3native.h>
-#elif GLFW_HAS_X11_OR_WAYLAND
+#elif GLFW_HAS_X11
 #ifndef GLFW_EXPOSE_NATIVE_X11      // for glfwGetX11Display(), glfwGetX11Window() on Freedesktop (Linux, BSD, etc.)
 #define GLFW_EXPOSE_NATIVE_X11
 #endif
-#ifndef GLFW_EXPOSE_NATIVE_WAYLAND
-#define GLFW_EXPOSE_NATIVE_WAYLAND
-#endif
 #include <GLFW/glfw3native.h>
 #endif
 #undef Status                   // X11 headers are leaking this.
@@ -149,6 +167,7 @@
 
 // We gather version tests as define in order to easily see which features are version-dependent.
 #define GLFW_VERSION_COMBINED           (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 + GLFW_VERSION_REVISION)
+#define GLFW_HAS_CREATECURSOR           (GLFW_VERSION_COMBINED >= 3100) // 3.1+ glfwCreateCursor()
 #define GLFW_HAS_PER_MONITOR_DPI        (GLFW_VERSION_COMBINED >= 3300) // 3.3+ glfwGetMonitorContentScale
 #ifdef GLFW_RESIZE_NESW_CURSOR          // Let's be nice to people who pulled GLFW between 2019-04-16 (3.4 define) and 2019-11-29 (cursors defines) // FIXME: Remove when GLFW 3.4 is released?
 #define GLFW_HAS_NEW_CURSORS            (GLFW_VERSION_COMBINED >= 3400) // 3.4+ GLFW_RESIZE_ALL_CURSOR, GLFW_RESIZE_NESW_CURSOR, GLFW_RESIZE_NWSE_CURSOR, GLFW_NOT_ALLOWED_CURSOR
@@ -167,7 +186,7 @@
 struct ImGui_ImplGlfw_WindowToContext { GLFWwindow* Window; ImGuiContext* Context; };
 static ImVector<ImGui_ImplGlfw_WindowToContext> g_ContextMap;
 static void ImGui_ImplGlfw_ContextMap_Add(GLFWwindow* window, ImGuiContext* ctx) { g_ContextMap.push_back(ImGui_ImplGlfw_WindowToContext{ window, ctx }); }
-static void ImGui_ImplGlfw_ContextMap_Remove(GLFWwindow* window)                 { for (ImGui_ImplGlfw_WindowToContext& entry : g_ContextMap) if (entry.Window == window) { g_ContextMap.erase_unsorted(&entry); return; } }
+static void ImGui_ImplGlfw_ContextMap_Remove(GLFWwindow* window)                 { for (ImGui_ImplGlfw_WindowToContext& entry : g_ContextMap) if (entry.Window == window) { g_ContextMap.erase_unsorted(&entry); if (g_ContextMap.empty()) g_ContextMap.clear(); return; } }
 static ImGuiContext* ImGui_ImplGlfw_ContextMap_Get(GLFWwindow* window)           { for (ImGui_ImplGlfw_WindowToContext& entry : g_ContextMap) if (entry.Window == window) return entry.Context; return nullptr; }
 
 enum GlfwClientApi
@@ -185,7 +204,10 @@ struct ImGui_ImplGlfw_Data
     GlfwClientApi           ClientApi;
     double                  Time;
     GLFWwindow*             MouseWindow;
+#if GLFW_HAS_CREATECURSOR
     GLFWcursor*             MouseCursors[ImGuiMouseCursor_COUNT];
+    GLFWcursor*             LastMouseCursor;
+#endif
     ImVec2                  LastValidMousePos;
     bool                    IsWayland;
     bool                    InstalledCallbacks;
@@ -234,16 +256,16 @@ static ImGui_ImplGlfw_Data* ImGui_ImplGlfw_GetBackendData(GLFWwindow* window)
 // Functions
 static bool ImGui_ImplGlfw_IsWayland()
 {
-#if !GLFW_HAS_X11_OR_WAYLAND
+#if !GLFW_HAS_WAYLAND
     return false;
 #elif GLFW_HAS_GETPLATFORM
     return glfwGetPlatform() == GLFW_PLATFORM_WAYLAND;
 #else
     const char* version = glfwGetVersionString();
-    if (strstr(version, "Wayland") == NULL) // e.g. Ubuntu 22.04 ships with GLFW 3.3.6 compiled without Wayland
+    if (strstr(version, "Wayland") == nullptr) // e.g. Ubuntu 22.04 ships with GLFW 3.3.6 compiled without Wayland
         return false;
 #ifdef GLFW_EXPOSE_NATIVE_X11
-    if (glfwGetX11Display() != NULL)
+    if (glfwGetX11Display() != nullptr)
         return false;
 #endif
     return true;
@@ -443,7 +465,7 @@ static int ImGui_ImplGlfw_TranslateUntranslatedKey(int key, int scancode)
     {
         const char char_names[] = "`-=[]\\,;\'./";
         const int char_keys[] = { GLFW_KEY_GRAVE_ACCENT, GLFW_KEY_MINUS, GLFW_KEY_EQUAL, GLFW_KEY_LEFT_BRACKET, GLFW_KEY_RIGHT_BRACKET, GLFW_KEY_BACKSLASH, GLFW_KEY_COMMA, GLFW_KEY_SEMICOLON, GLFW_KEY_APOSTROPHE, GLFW_KEY_PERIOD, GLFW_KEY_SLASH, 0 };
-        IM_ASSERT(IM_ARRAYSIZE(char_names) == IM_ARRAYSIZE(char_keys));
+        IM_ASSERT(IM_COUNTOF(char_names) == IM_COUNTOF(char_keys));
         if (key_name[0] >= '0' && key_name[0] <= '9')               { key = GLFW_KEY_0 + (key_name[0] - '0'); }
         else if (key_name[0] >= 'A' && key_name[0] <= 'Z')          { key = GLFW_KEY_A + (key_name[0] - 'A'); }
         else if (key_name[0] >= 'a' && key_name[0] <= 'z')          { key = GLFW_KEY_A + (key_name[0] - 'a'); }
@@ -656,7 +678,9 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
     snprintf(bd->BackendPlatformName, sizeof(bd->BackendPlatformName), "imgui_impl_glfw (%d)", GLFW_VERSION_COMBINED);
     io.BackendPlatformUserData = (void*)bd;
     io.BackendPlatformName = bd->BackendPlatformName;
+#if GLFW_HAS_CREATECURSOR
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;         // We can honor GetMouseCursor() values (optional)
+#endif
     io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;          // We can honor io.WantSetMousePos requests (optional, rarely used)
 
     bd->Context = ImGui::GetCurrentContext();
@@ -682,6 +706,7 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
     // (By design, on X11 cursors are user configurable and some cursors may be missing. When a cursor doesn't exist,
     // GLFW will emit an error which will often be printed by the app, so we temporarily disable error reporting.
     // Missing cursors will return nullptr and our _UpdateMouseCursor() function will use the Arrow cursor instead.)
+#if GLFW_HAS_CREATECURSOR
     GLFWerrorfun prev_error_callback = glfwSetErrorCallback(nullptr);
     bd->MouseCursors[ImGuiMouseCursor_Arrow] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
     bd->MouseCursors[ImGuiMouseCursor_TextInput] = glfwCreateStandardCursor(GLFW_IBEAM_CURSOR);
@@ -700,6 +725,7 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
     bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
 #endif
     glfwSetErrorCallback(prev_error_callback);
+#endif
 #if GLFW_HAS_GETERROR && !defined(__EMSCRIPTEN__) // Eat errors (see #5908)
     (void)glfwGetError(nullptr);
 #endif
@@ -778,10 +804,10 @@ void ImGui_ImplGlfw_Shutdown()
     if (bd->CanvasSelector)
         emscripten_set_wheel_callback(bd->CanvasSelector, nullptr, false, nullptr);
 #endif
-
+#if GLFW_HAS_CREATECURSOR
     for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
         glfwDestroyCursor(bd->MouseCursors[cursor_n]);
-
+#endif
     // Windows: restore our WndProc hook
 #ifdef _WIN32
     ImGuiViewport* main_viewport = ImGui::GetMainViewport();
@@ -834,7 +860,10 @@ static void ImGui_ImplGlfw_UpdateMouseCursor()
     ImGuiIO& io = ImGui::GetIO();
     ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
     if ((io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange) || glfwGetInputMode(bd->Window, GLFW_CURSOR) == GLFW_CURSOR_DISABLED)
+    {
+        bd->LastMouseCursor = nullptr;  // Invalidate so that if user changes underlying cursor we will update it next time we can.
         return;
+    }
 
     ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
     // (those braces are here to reduce diff with multi-viewports support in 'docking' branch)
@@ -842,14 +871,25 @@ static void ImGui_ImplGlfw_UpdateMouseCursor()
         GLFWwindow* window = bd->Window;
         if (imgui_cursor == ImGuiMouseCursor_None || io.MouseDrawCursor)
         {
-            // Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
-            glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
+            if (bd->LastMouseCursor != nullptr)
+            {
+                // Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
+                glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
+                bd->LastMouseCursor = nullptr;
+            }
         }
         else
         {
             // Show OS mouse cursor
             // FIXME-PLATFORM: Unfocused windows seems to fail changing the mouse cursor with GLFW 3.2, but 3.3 works here.
-            glfwSetCursor(window, bd->MouseCursors[imgui_cursor] ? bd->MouseCursors[imgui_cursor] : bd->MouseCursors[ImGuiMouseCursor_Arrow]);
+#if GLFW_HAS_CREATECURSOR
+            GLFWcursor* cursor = bd->MouseCursors[imgui_cursor] ? bd->MouseCursors[imgui_cursor] : bd->MouseCursors[ImGuiMouseCursor_Arrow];
+            if (bd->LastMouseCursor != cursor)
+            {
+                glfwSetCursor(window, cursor);
+                bd->LastMouseCursor = cursor;
+            }
+#endif
             glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
         }
     }
@@ -913,7 +953,7 @@ static void ImGui_ImplGlfw_UpdateGamepads()
 // - Some accessibility applications are declaring virtual monitors with a DPI of 0.0f, see #7902. We preserve this value for caller to handle.
 float ImGui_ImplGlfw_GetContentScaleForWindow(GLFWwindow* window)
 {
-#if GLFW_HAS_X11_OR_WAYLAND
+#if GLFW_HAS_WAYLAND
     if (ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window))
         if (bd->IsWayland)
             return 1.0f;
@@ -930,7 +970,7 @@ float ImGui_ImplGlfw_GetContentScaleForWindow(GLFWwindow* window)
 
 float ImGui_ImplGlfw_GetContentScaleForMonitor(GLFWmonitor* monitor)
 {
-#if GLFW_HAS_X11_OR_WAYLAND
+#if GLFW_HAS_WAYLAND
     if (ImGui_ImplGlfw_IsWayland()) // We can't access our bd->IsWayland cache for a monitor.
         return 1.0f;
 #endif
@@ -950,9 +990,9 @@ static void ImGui_ImplGlfw_GetWindowSizeAndFramebufferScale(GLFWwindow* window,
     int display_w, display_h;
     glfwGetWindowSize(window, &w, &h);
     glfwGetFramebufferSize(window, &display_w, &display_h);
-    float fb_scale_x = (w > 0) ? (float)display_w / w : 1.0f;
-    float fb_scale_y = (h > 0) ? (float)display_h / h : 1.0f;
-#if GLFW_HAS_X11_OR_WAYLAND
+    float fb_scale_x = (w > 0) ? (float)display_w / (float)w : 1.0f;
+    float fb_scale_y = (h > 0) ? (float)display_h / (float)h : 1.0f;
+#if GLFW_HAS_WAYLAND
     ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
     if (!bd->IsWayland)
         fb_scale_x = fb_scale_y = 1.0f;

backends/imgui_impl_glfw.h

@@ -1,17 +1,18 @@
 // dear imgui: Platform Backend for GLFW
 // This needs to be used along with a Renderer (e.g. OpenGL3, Vulkan, WebGPU..)
 // (Info: GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
+// (Requires: GLFW 3.0+. Prefer GLFW 3.3+/3.4+ for full feature support.)
 
 // Implemented features:
 //  [X] Platform: Clipboard support.
 //  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen (Windows only).
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy GLFW_KEY_* values are obsolete since 1.87 and not supported since 1.91.5]
 //  [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Resizing cursors requires GLFW 3.4+! Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors) with GLFW 3.1+. Resizing cursors requires GLFW 3.4+! Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [X] Multiple Dear ImGui contexts support.
 // Missing features or Issues:
-//  [ ] Touch events are only correctly identified as Touch on Windows. This create issues with some interactions. GLFW doesn't provide a way to identify touch inputs from mouse inputs, we cannot call io.AddMouseSourceEvent() to identify the source. We provide a Windows-specific workaround.
-//  [ ] Missing ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress cursors.
+//  [ ] Platform: Touch events are only correctly identified as Touch on Windows. This create issues with some interactions. GLFW doesn't provide a way to identify touch inputs from mouse inputs, we cannot call io.AddMouseSourceEvent() to identify the source. We provide a Windows-specific workaround.
+//  [ ] Platform: Missing ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress cursors.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -47,7 +48,7 @@ IMGUI_IMPL_API void     ImGui_ImplGlfw_InstallEmscriptenCallbacks(GLFWwindow* wi
 IMGUI_IMPL_API void     ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window);
 IMGUI_IMPL_API void     ImGui_ImplGlfw_RestoreCallbacks(GLFWwindow* window);
 
-// GFLW callbacks options:
+// GLFW callbacks options:
 // - Set 'chain_for_all_windows=true' to enable chaining callbacks for all windows (including secondary viewports created by backends or by user)
 IMGUI_IMPL_API void     ImGui_ImplGlfw_SetCallbacksChainForAllWindows(bool chain_for_all_windows);
 

backends/imgui_impl_metal.h

@@ -39,7 +39,7 @@ IMGUI_IMPL_API void ImGui_ImplMetal_RenderDrawData(ImDrawData* drawData,
 IMGUI_IMPL_API bool ImGui_ImplMetal_CreateDeviceObjects(id<MTLDevice> device);
 IMGUI_IMPL_API void ImGui_ImplMetal_DestroyDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void ImGui_ImplMetal_UpdateTexture(ImTextureData* tex);
 
 #endif
@@ -67,7 +67,7 @@ IMGUI_IMPL_API void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data,
 IMGUI_IMPL_API bool ImGui_ImplMetal_CreateDeviceObjects(MTL::Device* device);
 IMGUI_IMPL_API void ImGui_ImplMetal_DestroyDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void ImGui_ImplMetal_UpdateTexture(ImTextureData* tex);
 
 #endif

backends/imgui_impl_metal.mm

@@ -16,10 +16,11 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-03-19: Fixed issue in ImGui_ImplMetal_RenderDrawData() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295, #9310)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplMetal_CreateFontsTexture() and ImGui_ImplMetal_DestroyFontsTexture().
 //  2025-02-03: Metal: Crash fix. (#8367)
-//  2024-01-08: Metal: Fixed memory leaks when using metal-cpp (#8276, #8166) or when using multiple contexts (#7419).
+//  2025-01-08: Metal: Fixed memory leaks when using metal-cpp (#8276, #8166) or when using multiple contexts (#7419).
 //  2022-08-23: Metal: Update deprecated property 'sampleCount'->'rasterSampleCount'.
 //  2022-07-05: Metal: Add dispatch synchronization.
 //  2022-06-30: Metal: Use __bridge for ARC based systems.
@@ -307,7 +308,8 @@ void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data, id<MTLCommandBuffer>
                 [commandEncoder setScissorRect:scissorRect];
 
                 // Bind texture, Draw
-                if (ImTextureID tex_id = pcmd->GetTexID())
+                ImTextureID tex_id = pcmd->GetTexID();
+                if (tex_id != ImTextureID_Invalid)
                     [commandEncoder setFragmentTexture:(__bridge id<MTLTexture>)(void*)(intptr_t)(tex_id) atIndex:0];
 
                 [commandEncoder setVertexBufferOffset:(vertexBufferOffset + pcmd->VtxOffset * sizeof(ImDrawVert)) atIndex:0];

backends/imgui_impl_null.cpp

@@ -0,0 +1,102 @@
+// dear imgui: Null Platform+Renderer Backends
+// This is designed if you need to use a blind Dear Imgui context with no input and no output.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2025-11-17: Initial version.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_null.h"
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic ignored "-Wold-style-cast"         // warning: use of old-style cast                            // yes, they are more terse.
+#endif
+
+IMGUI_IMPL_API bool ImGui_ImplNull_Init()
+{
+    ImGui_ImplNullPlatform_Init();
+    ImGui_ImplNullRender_Init();
+    return true;
+}
+
+IMGUI_IMPL_API void ImGui_ImplNull_Shutdown()
+{
+    ImGui_ImplNullRender_Shutdown();
+    ImGui_ImplNullPlatform_Shutdown();
+}
+
+IMGUI_IMPL_API void ImGui_ImplNull_NewFrame()
+{
+    ImGui_ImplNullPlatform_NewFrame();
+    ImGui_ImplNullRender_NewFrame();
+}
+
+IMGUI_IMPL_API bool ImGui_ImplNullPlatform_Init()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;
+    return true;
+}
+
+IMGUI_IMPL_API void ImGui_ImplNullPlatform_Shutdown()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendFlags &= ~ImGuiBackendFlags_HasMouseCursors;
+}
+
+IMGUI_IMPL_API void ImGui_ImplNullPlatform_NewFrame()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.DisplaySize = ImVec2(1920, 1080);
+    io.DeltaTime = 1.0f / 60.0f;
+}
+
+IMGUI_IMPL_API bool ImGui_ImplNullRender_Init()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;
+    return true;
+}
+
+IMGUI_IMPL_API void ImGui_ImplNullRender_Shutdown()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendFlags &= ~ImGuiBackendFlags_RendererHasVtxOffset;
+    io.BackendFlags &= ~ImGuiBackendFlags_RendererHasTextures;
+}
+
+IMGUI_IMPL_API void ImGui_ImplNullRender_NewFrame()
+{
+}
+
+static void ImGui_ImplNullRender_UpdateTexture(ImTextureData* tex)
+{
+    if (tex->Status == ImTextureStatus_WantCreate || tex->Status == ImTextureStatus_WantDestroy)
+        tex->SetStatus(ImTextureStatus_OK);
+    if (tex->Status == ImTextureStatus_WantDestroy)
+    {
+        tex->SetTexID(ImTextureID_Invalid);
+        tex->SetStatus(ImTextureStatus_Destroyed);
+    }
+}
+
+IMGUI_IMPL_API void ImGui_ImplNullRender_RenderDrawData(ImDrawData* draw_data)
+{
+    if (draw_data->Textures != nullptr)
+        for (ImTextureData* tex : *draw_data->Textures)
+            if (tex->Status != ImTextureStatus_OK)
+                ImGui_ImplNullRender_UpdateTexture(tex);
+}
+
+#endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_null.h

@@ -0,0 +1,34 @@
+// dear imgui: Null Platform+Renderer Backends
+// This is designed if you need to use a blind Dear Imgui context with no input and no output.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+
+// Null = NullPlatform + NullRender
+IMGUI_IMPL_API bool     ImGui_ImplNull_Init();
+IMGUI_IMPL_API void     ImGui_ImplNull_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplNull_NewFrame();
+
+// Null platform only (single screen, fixed timestep, no inputs)
+IMGUI_IMPL_API bool     ImGui_ImplNullPlatform_Init();
+IMGUI_IMPL_API void     ImGui_ImplNullPlatform_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplNullPlatform_NewFrame();
+
+// Null renderer only (no output)
+IMGUI_IMPL_API bool     ImGui_ImplNullRender_Init();
+IMGUI_IMPL_API void     ImGui_ImplNullRender_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplNullRender_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplNullRender_RenderDrawData(ImDrawData* draw_data);
+
+#endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_opengl2.cpp

@@ -25,6 +25,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-03-12: OpenGL: Fixed invalid assert in ImGui_ImplOpenGL3_UpdateTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-07-15: OpenGL: Set GL_UNPACK_ALIGNMENT to 1 before updating textures. (#8802)
 //  2025-06-11: OpenGL: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplOpenGL2_CreateFontsTexture() and ImGui_ImplOpenGL2_DestroyFontsTexture().
@@ -274,7 +275,7 @@ void ImGui_ImplOpenGL2_UpdateTexture(ImTextureData* tex)
     {
         // Create and upload new texture to graphics system
         //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == 0 && tex->BackendUserData == nullptr);
+        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
         IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
         const void* pixels = tex->GetPixels();
         GLuint gl_texture_id = 0;

backends/imgui_impl_opengl2.h

@@ -37,7 +37,7 @@ IMGUI_IMPL_API void     ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data);
 IMGUI_IMPL_API bool     ImGui_ImplOpenGL2_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplOpenGL2_DestroyDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void     ImGui_ImplOpenGL2_UpdateTexture(ImTextureData* tex);
 
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_opengl3.cpp

@@ -23,6 +23,8 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-03-12: OpenGL: Fixed invalid assert in ImGui_ImplOpenGL3_UpdateTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295)
+//  2025-12-11: OpenGL: Fixed embedded loader multiple init/shutdown cycles broken on some platforms. (#8792, #9112)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-07-22: OpenGL: Add and call embedded loader shutdown during ImGui_ImplOpenGL3_Shutdown() to facilitate multiple init/shutdown cycles in same process. (#8792)
 //  2025-07-15: OpenGL: Set GL_UNPACK_ALIGNMENT to 1 before updating textures (#8802) + restore non-WebGL/ES update path that doesn't require a CPU-side copy.
@@ -40,7 +42,7 @@
 //  2023-05-09: OpenGL: Support for glBindSampler() backup/restore on ES3. (#6375)
 //  2023-04-18: OpenGL: Restore front and back polygon mode separately when supported by context. (#6333)
 //  2023-03-23: OpenGL: Properly restoring "no shader program bound" if it was the case prior to running the rendering function. (#6267, #6220, #6224)
-//  2023-03-15: OpenGL: Fixed GL loader crash when GL_VERSION returns NULL. (#6154, #4445, #3530)
+//  2023-03-15: OpenGL: Fixed GL loader crash when GL_VERSION returns nullptr. (#6154, #4445, #3530)
 //  2023-03-06: OpenGL: Fixed restoration of a potentially deleted OpenGL program, by calling glIsProgram(). (#6220, #6224)
 //  2022-11-09: OpenGL: Reverted use of glBufferSubData(), too many corruptions issues + old issues seemingly can't be reproed with Intel drivers nowadays (revert 2021-12-15 and 2022-05-23 changes).
 //  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
@@ -290,7 +292,8 @@ struct ImGui_ImplOpenGL3_VtxAttribState
 bool ImGui_ImplOpenGL3_InitLoader();
 bool ImGui_ImplOpenGL3_InitLoader()
 {
-    // Initialize our loader
+    // Lazily initialize our loader if not already done
+    // (to facilitate handling multiple DLL boundaries and multiple context shutdowns we call this from all main entry points)
 #ifdef IMGUI_IMPL_OPENGL_LOADER_IMGL3W
     if (glGetIntegerv == nullptr && imgl3wInit() != 0)
     {
@@ -301,6 +304,13 @@ bool ImGui_ImplOpenGL3_InitLoader()
     return true;
 }
 
+static void ImGui_ImplOpenGL3_ShutdownLoader()
+{
+#ifdef IMGUI_IMPL_OPENGL_LOADER_IMGL3W
+    imgl3wShutdown();
+#endif
+}
+
 // Functions
 bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
 {
@@ -386,7 +396,7 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
         glsl_version = "#version 130";
 #endif
     }
-    IM_ASSERT((int)strlen(glsl_version) + 2 < IM_ARRAYSIZE(bd->GlslVersionString));
+    IM_ASSERT((int)strlen(glsl_version) + 2 < IM_COUNTOF(bd->GlslVersionString));
     strcpy(bd->GlslVersionString, glsl_version);
     strcat(bd->GlslVersionString, "\n");
 
@@ -432,9 +442,7 @@ void    ImGui_ImplOpenGL3_Shutdown()
     platform_io.ClearRendererHandlers();
     IM_DELETE(bd);
 
-#ifdef IMGUI_IMPL_OPENGL_LOADER_IMGL3W
-    imgl3wShutdown();
-#endif
+    ImGui_ImplOpenGL3_ShutdownLoader();
 }
 
 void    ImGui_ImplOpenGL3_NewFrame()
@@ -442,8 +450,7 @@ void    ImGui_ImplOpenGL3_NewFrame()
     ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplOpenGL3_Init()?");
 
-    ImGui_ImplOpenGL3_InitLoader(); // Lazily init loader if not already done for e.g. DLL boundaries.
-
+    ImGui_ImplOpenGL3_InitLoader();
     if (!bd->ShaderHandle)
         if (!ImGui_ImplOpenGL3_CreateDeviceObjects())
             IM_ASSERT(0 && "ImGui_ImplOpenGL3_CreateDeviceObjects() failed!");
@@ -534,7 +541,7 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
     if (fb_width <= 0 || fb_height <= 0)
         return;
 
-    ImGui_ImplOpenGL3_InitLoader(); // Lazily init loader if not already done for e.g. DLL boundaries.
+    ImGui_ImplOpenGL3_InitLoader();
 
     ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
 
@@ -738,7 +745,7 @@ void ImGui_ImplOpenGL3_UpdateTexture(ImTextureData* tex)
     {
         // Create and upload new texture to graphics system
         //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == 0 && tex->BackendUserData == nullptr);
+        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
         IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
         const void* pixels = tex->GetPixels();
         GLuint gl_texture_id = 0;
@@ -837,6 +844,7 @@ static bool CheckProgram(GLuint handle, const char* desc)
 
 bool    ImGui_ImplOpenGL3_CreateDeviceObjects()
 {
+    ImGui_ImplOpenGL3_InitLoader();
     ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
 
     // Backup GL state
@@ -1035,6 +1043,7 @@ bool    ImGui_ImplOpenGL3_CreateDeviceObjects()
 
 void    ImGui_ImplOpenGL3_DestroyDeviceObjects()
 {
+    ImGui_ImplOpenGL3_InitLoader();
     ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
     if (bd->VboHandle)      { glDeleteBuffers(1, &bd->VboHandle); bd->VboHandle = 0; }
     if (bd->ElementsHandle) { glDeleteBuffers(1, &bd->ElementsHandle); bd->ElementsHandle = 0; }

backends/imgui_impl_opengl3.h

@@ -40,7 +40,7 @@ IMGUI_IMPL_API void     ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data);
 IMGUI_IMPL_API bool     ImGui_ImplOpenGL3_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplOpenGL3_DestroyDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void     ImGui_ImplOpenGL3_UpdateTexture(ImTextureData* tex);
 
 // Configuration flags to add in your imconfig file:

backends/imgui_impl_opengl3_loader.h

@@ -836,6 +836,7 @@ static int parse_version(void)
 }
 
 static void load_procs(GL3WGetProcAddressProc proc);
+static void clear_procs();
 
 int imgl3wInit(void)
 {
@@ -855,6 +856,7 @@ int imgl3wInit2(GL3WGetProcAddressProc proc)
 void imgl3wShutdown(void)
 {
     close_libgl();
+    clear_procs();
 }
 
 int imgl3wIsSupported(int major, int minor)
@@ -943,6 +945,13 @@ static void load_procs(GL3WGetProcAddressProc proc)
         imgl3wProcs.ptr[i] = proc(proc_names[i]);
 }
 
+static void clear_procs()
+{
+    size_t i;
+    for (i = 0; i < GL3W_ARRAY_SIZE(proc_names); i++)
+        imgl3wProcs.ptr[i] = nullptr;
+}
+
 #ifdef __cplusplus
 }
 #endif

backends/imgui_impl_osx.mm

@@ -148,9 +148,11 @@ static bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view);
     NSWindow* window = view.window;
     if (!window)
         return;
-    NSRect contentRect = [window contentRectForFrameRect:window.frame];
-    NSRect rect = NSMakeRect(_posX, contentRect.size.height - _posY, 0, 0);
-    _imeRect = [window convertRectToScreen:rect];
+    {
+        NSRect contentRect = [window contentRectForFrameRect:window.frame];
+        NSRect rect = NSMakeRect(_posX, contentRect.size.height - _posY, 0, 0);
+        _imeRect = [window convertRectToScreen:rect];
+    }
 }
 
 - (void)viewDidMoveToWindow
@@ -629,9 +631,9 @@ void ImGui_ImplOSX_NewFrame(NSView* view)
     // Setup display size
     if (view)
     {
-        const float dpi = (float)[view.window backingScaleFactor];
+        const float fb_scale = (float)[view.window backingScaleFactor];
         io.DisplaySize = ImVec2((float)view.bounds.size.width, (float)view.bounds.size.height);
-        io.DisplayFramebufferScale = ImVec2(dpi, dpi);
+        io.DisplayFramebufferScale = ImVec2(fb_scale, fb_scale);
     }
 
     // Setup time step

backends/imgui_impl_sdl2.cpp

@@ -21,6 +21,8 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-02-13: Inputs: systems other than X11 are back to starting mouse capture on mouse down (reverts 2025-02-26 change). Only X11 requires waiting for a drag by default (not ideal, but a better default for X11 users). Added ImGui_ImplSDL2_SetMouseCaptureMode() for X11 debugger users. (#3650, #6410, #9235)
+//  2026-01-15: Changed GetClipboardText() handler to return nullptr on error aka clipboard contents is not text. Consistent with other backends. (#9168)
 //  2025-09-24: Skip using the SDL_GetGlobalMouseState() state when one of our window is hovered, as the SDL_MOUSEMOTION data is reliable. Fix macOS notch mouse coordinates issue in fullscreen mode + better perf on X11. (#7919, #7786)
 //  2025-09-18: Call platform_io.ClearPlatformHandlers() on shutdown.
 //  2025-09-15: Content Scales are always reported as 1.0 on Wayland. (#8921)
@@ -29,7 +31,7 @@
 //  2025-04-09: Don't attempt to call SDL_CaptureMouse() on drivers where we don't call SDL_GetGlobalMouseState(). (#8561)
 //  2025-03-21: Fill gamepad inputs and set ImGuiBackendFlags_HasGamepad regardless of ImGuiConfigFlags_NavEnableGamepad being set.
 //  2025-03-10: When dealing with OEM keys, use scancodes instead of translated keycodes to choose ImGuiKey values. (#7136, #7201, #7206, #7306, #7670, #7672, #8468)
-//  2025-02-26: Only start SDL_CaptureMouse() when mouse is being dragged, to mitigate issues with e.g.Linux debuggers not claiming capture back. (#6410, #3650)
+//  2025-02-26: Only start SDL_CaptureMouse() when mouse is being dragged, to mitigate issues with e.g. Linux debuggers not claiming capture back. (#6410, #3650)
 //  2025-02-24: Avoid calling SDL_GetGlobalMouseState() when mouse is in relative mode.
 //  2025-02-18: Added ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress mouse cursor support.
 //  2025-02-10: Using SDL_OpenURL() in platform_io.Platform_OpenInShellFn handler.
@@ -140,7 +142,7 @@
 struct ImGui_ImplSDL2_Data
 {
     SDL_Window*             Window;
-    Uint32                  WindowID;
+    Uint32                  WindowID;       // Stored in ImGuiViewport::PlatformHandle. Use SDL_GetWindowFromID() to get SDL_Window* from Uint32 WindowID.
     SDL_Renderer*           Renderer;
     Uint64                  Time;
     char*                   ClipboardTextData;
@@ -153,7 +155,7 @@ struct ImGui_ImplSDL2_Data
     SDL_Cursor*             MouseLastCursor;
     int                     MouseLastLeaveFrame;
     bool                    MouseCanUseGlobalState;
-    bool                    MouseCanUseCapture;
+    ImGui_ImplSDL2_MouseCaptureMode MouseCaptureMode;
 
     // Gamepad handling
     ImVector<SDL_GameController*> Gamepads;
@@ -178,7 +180,10 @@ static const char* ImGui_ImplSDL2_GetClipboardText(ImGuiContext*)
     ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
     if (bd->ClipboardTextData)
         SDL_free(bd->ClipboardTextData);
-    bd->ClipboardTextData = SDL_GetClipboardText();
+    if (SDL_HasClipboardText())
+        bd->ClipboardTextData = SDL_GetClipboardText();
+    else
+        bd->ClipboardTextData = nullptr;
     return bd->ClipboardTextData;
 }
 
@@ -368,7 +373,6 @@ static ImGuiViewport* ImGui_ImplSDL2_GetViewportForWindowID(Uint32 window_id)
 // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
 // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
 // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
-// If you have multiple SDL events and some of them are not meant to be used by dear imgui, you may need to filter events based on their windowID field.
 bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
 {
     ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
@@ -462,7 +466,7 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
                 bd->MouseLastLeaveFrame = ImGui::GetFrameCount() + 1;
             if (window_event == SDL_WINDOWEVENT_FOCUS_GAINED)
                 io.AddFocusEvent(true);
-            else if (event->window.event == SDL_WINDOWEVENT_FOCUS_LOST)
+            if (window_event == SDL_WINDOWEVENT_FOCUS_LOST)
                 io.AddFocusEvent(false);
             return true;
         }
@@ -487,6 +491,7 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer, void
     ImGuiIO& io = ImGui::GetIO();
     IMGUI_CHECKVERSION();
     IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
+    //SDL_SetHint(SDL_HINT_EVENT_LOGGING, "2");
 
     // Obtain compiled and runtime versions
     SDL_version ver_compiled;
@@ -510,13 +515,16 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer, void
     // Check and store if we are on a SDL backend that supports SDL_GetGlobalMouseState() and SDL_CaptureMouse()
     // ("wayland" and "rpi" don't support it, but we chose to use a white-list instead of a black-list)
     bd->MouseCanUseGlobalState = false;
-    bd->MouseCanUseCapture = false;
+    bd->MouseCaptureMode = ImGui_ImplSDL2_MouseCaptureMode_Disabled;
 #if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
     const char* sdl_backend = SDL_GetCurrentVideoDriver();
     const char* capture_and_global_state_whitelist[] = { "windows", "cocoa", "x11", "DIVE", "VMAN" };
     for (const char* item : capture_and_global_state_whitelist)
         if (strncmp(sdl_backend, item, strlen(item)) == 0)
-            bd->MouseCanUseGlobalState = bd->MouseCanUseCapture = true;
+        {
+            bd->MouseCanUseGlobalState = true;
+            bd->MouseCaptureMode = (strcmp(item, "x11") == 0) ? ImGui_ImplSDL2_MouseCaptureMode_EnabledAfterDrag : ImGui_ImplSDL2_MouseCaptureMode_Enabled;
+        }
 #endif
 
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
@@ -646,6 +654,14 @@ void ImGui_ImplSDL2_Shutdown()
     IM_DELETE(bd);
 }
 
+void ImGui_ImplSDL2_SetMouseCaptureMode(ImGui_ImplSDL2_MouseCaptureMode mode)
+{
+    ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
+    if (mode == ImGui_ImplSDL2_MouseCaptureMode_Disabled && bd->MouseCaptureMode != ImGui_ImplSDL2_MouseCaptureMode_Disabled)
+        SDL_CaptureMouse(SDL_FALSE);
+    bd->MouseCaptureMode = mode;
+}
+
 static void ImGui_ImplSDL2_UpdateMouseData()
 {
     ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
@@ -654,8 +670,12 @@ static void ImGui_ImplSDL2_UpdateMouseData()
     // We forward mouse input when hovered or captured (via SDL_MOUSEMOTION) or when focused (below)
 #if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
     // - SDL_CaptureMouse() let the OS know e.g. that our drags can extend outside of parent boundaries (we want updated position) and shouldn't trigger other operations outside.
-    // - Debuggers under Linux tends to leave captured mouse on break, which may be very inconvenient, so to mitigate the issue we wait until mouse has moved to begin capture.
-    if (bd->MouseCanUseCapture)
+    // - Debuggers under Linux tends to leave captured mouse on break, which may be very inconvenient, so to mitigate the issue on X11 we we wait until mouse has moved to begin capture.
+    if (bd->MouseCaptureMode == ImGui_ImplSDL2_MouseCaptureMode_Enabled)
+    {
+        SDL_CaptureMouse((bd->MouseButtonsDown != 0) ? SDL_TRUE : SDL_FALSE);
+    }
+    else if (bd->MouseCaptureMode == ImGui_ImplSDL2_MouseCaptureMode_EnabledAfterDrag)
     {
         bool want_capture = false;
         for (int button_n = 0; button_n < ImGuiMouseButton_COUNT && !want_capture; button_n++)
@@ -680,7 +700,7 @@ static void ImGui_ImplSDL2_UpdateMouseData()
         // Note that SDL_GetGlobalMouseState() is in theory slow on X11, but this only runs on rather specific cases. If a problem we may provide a way to opt-out this feature.
         SDL_Window* hovered_window = SDL_GetMouseFocus();
         const bool is_relative_mouse_mode = SDL_GetRelativeMouseMode() != 0;
-        if (hovered_window == NULL && bd->MouseCanUseGlobalState && bd->MouseButtonsDown == 0 && !is_relative_mouse_mode)
+        if (hovered_window == nullptr && bd->MouseCanUseGlobalState && bd->MouseButtonsDown == 0 && !is_relative_mouse_mode)
         {
             // Single-viewport mode: mouse position in client window coordinates (io.MousePos is (0,0) when the mouse is on the upper-left corner of the app window)
             int mouse_x, mouse_y;

backends/imgui_impl_sdl2.h

@@ -47,4 +47,11 @@ IMGUI_IMPL_API float    ImGui_ImplSDL2_GetContentScaleForDisplay(int display_ind
 enum ImGui_ImplSDL2_GamepadMode { ImGui_ImplSDL2_GamepadMode_AutoFirst, ImGui_ImplSDL2_GamepadMode_AutoAll, ImGui_ImplSDL2_GamepadMode_Manual };
 IMGUI_IMPL_API void     ImGui_ImplSDL2_SetGamepadMode(ImGui_ImplSDL2_GamepadMode mode, struct _SDL_GameController** manual_gamepads_array = nullptr, int manual_gamepads_count = -1);
 
+// (Advanced, for X11 users) Override Mouse Capture mode. Mouse capture allows receiving updated mouse position after clicking inside our window and dragging outside it.
+// Having this 'Enabled' is in theory always better. But, on X11 if you crash/break to debugger while capture is active you may temporarily lose access to your mouse.
+// The best solution is to setup your debugger to automatically release capture, e.g. 'setxkbmap -option grab:break_actions && xdotool key XF86Ungrab' or via a GDB script. See #3650.
+// But you may independently decide on X11, when a debugger is attached, to set this value to ImGui_ImplSDL2_MouseCaptureMode_Disabled.
+enum ImGui_ImplSDL2_MouseCaptureMode { ImGui_ImplSDL2_MouseCaptureMode_Enabled, ImGui_ImplSDL2_MouseCaptureMode_EnabledAfterDrag, ImGui_ImplSDL2_MouseCaptureMode_Disabled };
+IMGUI_IMPL_API void     ImGui_ImplSDL2_SetMouseCaptureMode(ImGui_ImplSDL2_MouseCaptureMode mode);
+
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_sdl3.cpp

@@ -20,6 +20,10 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-02-13: Inputs: systems other than X11 are back to starting mouse capture on mouse down (reverts 2025-02-26 change). Only X11 requires waiting for a drag by default (not ideal, but a better default for X11 users). Added ImGui_ImplSDL3_SetMouseCaptureMode() for X11 debugger users. (#3650, #6410, #9235)
+//  2026-01-15: Changed GetClipboardText() handler to return nullptr on error aka clipboard contents is not text. Consistent with other backends. (#9168)
+//  2025-11-05: Fixed an issue with missing characters events when an already active text field changes viewports. (#9054)
+//  2025-10-22: Fixed Platform_OpenInShellFn() return value (unused in core).
 //  2025-09-24: Skip using the SDL_GetGlobalMouseState() state when one of our window is hovered, as the SDL_EVENT_MOUSE_MOTION data is reliable. Fix macOS notch mouse coordinates issue in fullscreen mode + better perf on X11. (#7919, #7786)
 //  2025-09-18: Call platform_io.ClearPlatformHandlers() on shutdown.
 //  2025-09-15: Use SDL_GetWindowDisplayScale() on Mac to output DisplayFrameBufferScale. The function is more reliable during resolution changes e.g. going fullscreen. (#8703, #4414)
@@ -29,7 +33,7 @@
 //  2025-03-30: Update for SDL3 api changes: Revert SDL_GetClipboardText() memory ownership change. (#8530, #7801)
 //  2025-03-21: Fill gamepad inputs and set ImGuiBackendFlags_HasGamepad regardless of ImGuiConfigFlags_NavEnableGamepad being set.
 //  2025-03-10: When dealing with OEM keys, use scancodes instead of translated keycodes to choose ImGuiKey values. (#7136, #7201, #7206, #7306, #7670, #7672, #8468)
-//  2025-02-26: Only start SDL_CaptureMouse() when mouse is being dragged, to mitigate issues with e.g.Linux debuggers not claiming capture back. (#6410, #3650)
+//  2025-02-26: Only start SDL_CaptureMouse() when mouse is being dragged, to mitigate issues with e.g. Linux debuggers not claiming capture back. (#6410, #3650)
 //  2025-02-24: Avoid calling SDL_GetGlobalMouseState() when mouse is in relative mode.
 //  2025-02-18: Added ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress mouse cursor support.
 //  2025-02-10: Using SDL_OpenURL() in platform_io.Platform_OpenInShellFn handler.
@@ -111,6 +115,8 @@ struct ImGui_ImplSDL3_Data
 
     // IME handling
     SDL_Window*             ImeWindow;
+    ImGuiPlatformImeData    ImeData;
+    bool                    ImeDirty;
 
     // Mouse handling
     Uint32                  MouseWindowID;
@@ -119,7 +125,7 @@ struct ImGui_ImplSDL3_Data
     SDL_Cursor*             MouseLastCursor;
     int                     MousePendingLeaveFrame;
     bool                    MouseCanUseGlobalState;
-    bool                    MouseCanUseCapture;
+    ImGui_ImplSDL3_MouseCaptureMode MouseCaptureMode;
 
     // Gamepad handling
     ImVector<SDL_Gamepad*>      Gamepads;
@@ -138,13 +144,19 @@ static ImGui_ImplSDL3_Data* ImGui_ImplSDL3_GetBackendData()
     return ImGui::GetCurrentContext() ? (ImGui_ImplSDL3_Data*)ImGui::GetIO().BackendPlatformUserData : nullptr;
 }
 
+// Forward Declarations
+static void ImGui_ImplSDL3_UpdateIme();
+
 // Functions
 static const char* ImGui_ImplSDL3_GetClipboardText(ImGuiContext*)
 {
     ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
     if (bd->ClipboardTextData)
         SDL_free(bd->ClipboardTextData);
-    bd->ClipboardTextData = SDL_GetClipboardText();
+    if (SDL_HasClipboardText())
+        bd->ClipboardTextData = SDL_GetClipboardText();
+    else
+        bd->ClipboardTextData = nullptr;
     return bd->ClipboardTextData;
 }
 
@@ -153,16 +165,38 @@ static void ImGui_ImplSDL3_SetClipboardText(ImGuiContext*, const char* text)
     SDL_SetClipboardText(text);
 }
 
-static void ImGui_ImplSDL3_PlatformSetImeData(ImGuiContext*, ImGuiViewport* viewport, ImGuiPlatformImeData* data)
+static ImGuiViewport* ImGui_ImplSDL3_GetViewportForWindowID(SDL_WindowID window_id)
 {
     ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
-    SDL_WindowID window_id = (SDL_WindowID)(intptr_t)viewport->PlatformHandle;
-    SDL_Window* window = SDL_GetWindowFromID(window_id);
+    return (window_id == bd->WindowID) ? ImGui::GetMainViewport() : nullptr;
+}
+
+static void ImGui_ImplSDL3_PlatformSetImeData(ImGuiContext*, ImGuiViewport*, ImGuiPlatformImeData* data)
+{
+    ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
+    bd->ImeData = *data;
+    bd->ImeDirty = true;
+    ImGui_ImplSDL3_UpdateIme();
+}
+
+// We discard viewport passed via ImGuiPlatformImeData and always call SDL_StartTextInput() on SDL_GetKeyboardFocus().
+static void ImGui_ImplSDL3_UpdateIme()
+{
+    ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
+    ImGuiPlatformImeData* data = &bd->ImeData;
+    SDL_Window* window = SDL_GetKeyboardFocus();
+
+    // Stop previous input
     if ((!(data->WantVisible || data->WantTextInput) || bd->ImeWindow != window) && bd->ImeWindow != nullptr)
     {
         SDL_StopTextInput(bd->ImeWindow);
         bd->ImeWindow = nullptr;
     }
+    if ((!bd->ImeDirty && bd->ImeWindow == window) || (window == nullptr))
+        return;
+
+    // Start/update current input
+    bd->ImeDirty = false;
     if (data->WantVisible)
     {
         SDL_Rect r;
@@ -339,18 +373,10 @@ static void ImGui_ImplSDL3_UpdateKeyModifiers(SDL_Keymod sdl_key_mods)
     io.AddKeyEvent(ImGuiMod_Super, (sdl_key_mods & SDL_KMOD_GUI) != 0);
 }
 
-
-static ImGuiViewport* ImGui_ImplSDL3_GetViewportForWindowID(SDL_WindowID window_id)
-{
-    ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
-    return (window_id == bd->WindowID) ? ImGui::GetMainViewport() : nullptr;
-}
-
 // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
 // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
 // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
 // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
-// If you have multiple SDL events and some of them are not meant to be used by dear imgui, you may need to filter events based on their windowID field.
 bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
 {
     ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
@@ -473,6 +499,7 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
     IMGUI_CHECKVERSION();
     IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
     IM_UNUSED(sdl_gl_context); // Unused in this branch
+    //SDL_SetHint(SDL_HINT_EVENT_LOGGING, "2");
 
     const int ver_linked = SDL_GetVersion();
 
@@ -492,20 +519,23 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
     // Check and store if we are on a SDL backend that supports SDL_GetGlobalMouseState() and SDL_CaptureMouse()
     // ("wayland" and "rpi" don't support it, but we chose to use a white-list instead of a black-list)
     bd->MouseCanUseGlobalState = false;
-    bd->MouseCanUseCapture = false;
+    bd->MouseCaptureMode = ImGui_ImplSDL3_MouseCaptureMode_Disabled;
 #if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
     const char* sdl_backend = SDL_GetCurrentVideoDriver();
     const char* capture_and_global_state_whitelist[] = { "windows", "cocoa", "x11", "DIVE", "VMAN" };
     for (const char* item : capture_and_global_state_whitelist)
         if (strncmp(sdl_backend, item, strlen(item)) == 0)
-            bd->MouseCanUseGlobalState = bd->MouseCanUseCapture = true;
+        {
+            bd->MouseCanUseGlobalState = true;
+            bd->MouseCaptureMode = (strcmp(item, "x11") == 0) ? ImGui_ImplSDL3_MouseCaptureMode_EnabledAfterDrag : ImGui_ImplSDL3_MouseCaptureMode_Enabled;
+        }
 #endif
 
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
     platform_io.Platform_SetClipboardTextFn = ImGui_ImplSDL3_SetClipboardText;
     platform_io.Platform_GetClipboardTextFn = ImGui_ImplSDL3_GetClipboardText;
     platform_io.Platform_SetImeDataFn = ImGui_ImplSDL3_PlatformSetImeData;
-    platform_io.Platform_OpenInShellFn = [](ImGuiContext*, const char* url) { return SDL_OpenURL(url) == 0; };
+    platform_io.Platform_OpenInShellFn = [](ImGuiContext*, const char* url) { return SDL_OpenURL(url); };
 
     // Gamepad handling
     bd->GamepadMode = ImGui_ImplSDL3_GamepadMode_AutoFirst;
@@ -533,22 +563,18 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
     // Without this, when clicking to gain focus, our widgets wouldn't activate even though they showed as hovered.
     // (This is unfortunately a global SDL setting, so enabling it might have a side-effect on your application.
     // It is unlikely to make a difference, but if your app absolutely needs to ignore the initial on-focus click:
-    // you can ignore SDL_EVENT_MOUSE_BUTTON_DOWN events coming right after a SDL_WINDOWEVENT_FOCUS_GAINED)
-#ifdef SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH
+    // you can ignore SDL_EVENT_MOUSE_BUTTON_DOWN events coming right after a SDL_EVENT_WINDOW_FOCUS_GAINED)
     SDL_SetHint(SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH, "1");
-#endif
 
     // From 2.0.22: Disable auto-capture, this is preventing drag and drop across multiple windows (see #5710)
-#ifdef SDL_HINT_MOUSE_AUTO_CAPTURE
     SDL_SetHint(SDL_HINT_MOUSE_AUTO_CAPTURE, "0");
-#endif
 
     return true;
 }
 
+// Should technically be a SDL_GLContext but due to typedef it is sane to keep it void* in public interface.
 bool ImGui_ImplSDL3_InitForOpenGL(SDL_Window* window, void* sdl_gl_context)
 {
-    IM_UNUSED(sdl_gl_context); // Viewport branch will need this.
     return ImGui_ImplSDL3_Init(window, nullptr, sdl_gl_context);
 }
 
@@ -607,6 +633,14 @@ void ImGui_ImplSDL3_Shutdown()
     IM_DELETE(bd);
 }
 
+void ImGui_ImplSDL3_SetMouseCaptureMode(ImGui_ImplSDL3_MouseCaptureMode mode)
+{
+    ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
+    if (mode == ImGui_ImplSDL3_MouseCaptureMode_Disabled && bd->MouseCaptureMode != ImGui_ImplSDL3_MouseCaptureMode_Disabled)
+        SDL_CaptureMouse(false);
+    bd->MouseCaptureMode = mode;
+}
+
 static void ImGui_ImplSDL3_UpdateMouseData()
 {
     ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
@@ -615,8 +649,12 @@ static void ImGui_ImplSDL3_UpdateMouseData()
     // We forward mouse input when hovered or captured (via SDL_EVENT_MOUSE_MOTION) or when focused (below)
 #if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
     // - SDL_CaptureMouse() let the OS know e.g. that our drags can extend outside of parent boundaries (we want updated position) and shouldn't trigger other operations outside.
-    // - Debuggers under Linux tends to leave captured mouse on break, which may be very inconvenient, so to mitigate the issue we wait until mouse has moved to begin capture.
-    if (bd->MouseCanUseCapture)
+    // - Debuggers under Linux tends to leave captured mouse on break, which may be very inconvenient, so to mitigate the issue on X11 we we wait until mouse has moved to begin capture.
+    if (bd->MouseCaptureMode == ImGui_ImplSDL3_MouseCaptureMode_Enabled)
+    {
+        SDL_CaptureMouse(bd->MouseButtonsDown != 0);
+    }
+    else if (bd->MouseCaptureMode == ImGui_ImplSDL3_MouseCaptureMode_EnabledAfterDrag)
     {
         bool want_capture = false;
         for (int button_n = 0; button_n < ImGuiMouseButton_COUNT && !want_capture; button_n++)
@@ -641,7 +679,7 @@ static void ImGui_ImplSDL3_UpdateMouseData()
         // Note that SDL_GetGlobalMouseState() is in theory slow on X11, but this only runs on rather specific cases. If a problem we may provide a way to opt-out this feature.
         SDL_Window* hovered_window = SDL_GetMouseFocus();
         const bool is_relative_mouse_mode = SDL_GetWindowRelativeMouseMode(bd->Window);
-        if (hovered_window == NULL && bd->MouseCanUseGlobalState && bd->MouseButtonsDown == 0 && !is_relative_mouse_mode)
+        if (hovered_window == nullptr && bd->MouseCanUseGlobalState && bd->MouseButtonsDown == 0 && !is_relative_mouse_mode)
         {
             // Single-viewport mode: mouse position in client window coordinates (io.MousePos is (0,0) when the mouse is on the upper-left corner of the app window)
             float mouse_x, mouse_y;
@@ -797,8 +835,8 @@ static void ImGui_ImplSDL3_GetWindowSizeAndFramebufferScale(SDL_Window* window,
 #else
     int display_w, display_h;
     SDL_GetWindowSizeInPixels(window, &display_w, &display_h);
-    float fb_scale_x = (w > 0) ? (float)display_w / w : 1.0f;
-    float fb_scale_y = (h > 0) ? (float)display_h / h : 1.0f;
+    float fb_scale_x = (w > 0) ? (float)display_w / (float)w : 1.0f;
+    float fb_scale_y = (h > 0) ? (float)display_h / (float)h : 1.0f;
 #endif
 
     if (out_size != nullptr)
@@ -834,6 +872,7 @@ void ImGui_ImplSDL3_NewFrame()
 
     ImGui_ImplSDL3_UpdateMouseData();
     ImGui_ImplSDL3_UpdateMouseCursor();
+    ImGui_ImplSDL3_UpdateIme();
 
     // Update game controllers (if enabled and available)
     ImGui_ImplSDL3_UpdateGamepads();

backends/imgui_impl_sdl3.h

@@ -44,4 +44,11 @@ IMGUI_IMPL_API bool     ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event);
 enum ImGui_ImplSDL3_GamepadMode { ImGui_ImplSDL3_GamepadMode_AutoFirst, ImGui_ImplSDL3_GamepadMode_AutoAll, ImGui_ImplSDL3_GamepadMode_Manual };
 IMGUI_IMPL_API void     ImGui_ImplSDL3_SetGamepadMode(ImGui_ImplSDL3_GamepadMode mode, SDL_Gamepad** manual_gamepads_array = nullptr, int manual_gamepads_count = -1);
 
+// (Advanced, for X11 users) Override Mouse Capture mode. Mouse capture allows receiving updated mouse position after clicking inside our window and dragging outside it.
+// Having this 'Enabled' is in theory always better. But, on X11 if you crash/break to debugger while capture is active you may temporarily lose access to your mouse.
+// The best solution is to setup your debugger to automatically release capture, e.g. 'setxkbmap -option grab:break_actions && xdotool key XF86Ungrab' or via a GDB script. See #3650.
+// But you may independently decide on X11, when a debugger is attached, to set this value to ImGui_ImplSDL3_MouseCaptureMode_Disabled.
+enum ImGui_ImplSDL3_MouseCaptureMode { ImGui_ImplSDL3_MouseCaptureMode_Enabled, ImGui_ImplSDL3_MouseCaptureMode_EnabledAfterDrag, ImGui_ImplSDL3_MouseCaptureMode_Disabled };
+IMGUI_IMPL_API void     ImGui_ImplSDL3_SetMouseCaptureMode(ImGui_ImplSDL3_MouseCaptureMode mode);
+
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_sdlgpu3.cpp

@@ -22,6 +22,9 @@
 //   Calling the function is MANDATORY, otherwise the ImGui will not upload neither the vertex nor the index buffer for the GPU. See imgui_impl_sdlgpu3.cpp for more info.
 
 // CHANGELOG
+//  2026-03-19: Fixed issue in ImGui_ImplSDLGPU3_DestroyTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295, #9310)
+//  2026-02-25: Removed unnecessary call to SDL_WaitForGPUIdle when releasing vertex/index buffers. (#9262)
+//  2025-11-26: macOS version can use MSL shaders in order to support macOS 10.14+ (vs Metallib shaders requiring macOS 14+). Requires calling SDL_CreateGPUDevice() with SDL_GPU_SHADERFORMAT_MSL.
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-08-20: Added ImGui_ImplSDLGPU3_InitInfo::SwapchainComposition and ImGui_ImplSDLGPU3_InitInfo::PresentMode to configure how secondary viewports are created.
 //  2025-08-08: *BREAKING* Changed ImTextureID type from SDL_GPUTextureSamplerBinding* to SDL_GPUTexture*, which is more natural and easier for user to manage. If you need to change the current sampler, you can access the ImGui_ImplSDLGPU3_RenderState struct. (#8866, #8163, #7998, #7988)
@@ -61,6 +64,7 @@ struct ImGui_ImplSDLGPU3_Data
     SDL_GPUShader*               FragmentShader         = nullptr;
     SDL_GPUGraphicsPipeline*     Pipeline               = nullptr;
     SDL_GPUSampler*              TexSamplerLinear       = nullptr;
+    SDL_GPUSampler*              TexSamplerNearest      = nullptr;
     SDL_GPUTransferBuffer*       TexTransferBuffer      = nullptr;
     uint32_t                     TexTransferBufferSize  = 0;
 
@@ -129,8 +133,7 @@ static void CreateOrResizeBuffers(SDL_GPUBuffer** buffer, SDL_GPUTransferBuffer*
     ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
     ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
 
-    // FIXME-OPT: Not optimal, but this is fairly rarely called.
-    SDL_WaitForGPUIdle(v->Device);
+    // There is no need for calling SDL_WaitForGPUIdle here, as SDL3 will handle deferred buffer deletion automatically.
     SDL_ReleaseGPUBuffer(v->Device, *buffer);
     SDL_ReleaseGPUTransferBuffer(v->Device, *transferbuffer);
 
@@ -235,7 +238,8 @@ void ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffe
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
     ImGui_ImplSDLGPU3_RenderState render_state;
     render_state.Device = bd->InitInfo.Device;
-    render_state.SamplerDefault = render_state.SamplerCurrent = bd->TexSamplerLinear;
+    render_state.SamplerLinear = render_state.SamplerCurrent = bd->TexSamplerLinear;
+    render_state.SamplerNearest = bd->TexSamplerNearest;
     platform_io.Renderer_RenderState = &render_state;
 
     ImGui_ImplSDLGPU3_SetupRenderState(draw_data, &render_state, pipeline, command_buffer, render_pass, fd, fb_width, fb_height);
@@ -307,8 +311,9 @@ void ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffe
 static void ImGui_ImplSDLGPU3_DestroyTexture(ImTextureData* tex)
 {
     ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    if (SDL_GPUTexture* raw_tex = (SDL_GPUTexture*)(intptr_t)tex->GetTexID())
-        SDL_ReleaseGPUTexture(bd->InitInfo.Device, raw_tex);
+    if (tex->GetTexID() != ImTextureID_Invalid)
+        if (SDL_GPUTexture* raw_tex = (SDL_GPUTexture*)(intptr_t)tex->GetTexID())
+            SDL_ReleaseGPUTexture(bd->InitInfo.Device, raw_tex);
 
     // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
     tex->SetTexID(ImTextureID_Invalid);
@@ -452,14 +457,31 @@ static void ImGui_ImplSDLGPU3_CreateShaders()
 #ifdef __APPLE__
     else
     {
-        vertex_shader_info.entrypoint = "main0";
-        vertex_shader_info.format = SDL_GPU_SHADERFORMAT_METALLIB;
-        vertex_shader_info.code = metallib_vertex;
-        vertex_shader_info.code_size = sizeof(metallib_vertex);
-        fragment_shader_info.entrypoint = "main0";
-        fragment_shader_info.format = SDL_GPU_SHADERFORMAT_METALLIB;
-        fragment_shader_info.code = metallib_fragment;
-        fragment_shader_info.code_size = sizeof(metallib_fragment);
+        SDL_GPUShaderFormat supported_formats = SDL_GetGPUShaderFormats(v->Device);
+        if (supported_formats & SDL_GPU_SHADERFORMAT_METALLIB)
+        {
+            // Using metallib blobs (macOS 14+, iOS)
+            vertex_shader_info.entrypoint = "main0";
+            vertex_shader_info.format = SDL_GPU_SHADERFORMAT_METALLIB;
+            vertex_shader_info.code = metallib_vertex;
+            vertex_shader_info.code_size = sizeof(metallib_vertex);
+            fragment_shader_info.entrypoint = "main0";
+            fragment_shader_info.format = SDL_GPU_SHADERFORMAT_METALLIB;
+            fragment_shader_info.code = metallib_fragment;
+            fragment_shader_info.code_size = sizeof(metallib_fragment);
+        }
+        else if (supported_formats & SDL_GPU_SHADERFORMAT_MSL)
+        {
+            // macOS: using MSL source
+            vertex_shader_info.entrypoint = "main0";
+            vertex_shader_info.format = SDL_GPU_SHADERFORMAT_MSL;
+            vertex_shader_info.code = msl_vertex;
+            vertex_shader_info.code_size = sizeof(msl_vertex);
+            fragment_shader_info.entrypoint = "main0";
+            fragment_shader_info.format = SDL_GPU_SHADERFORMAT_MSL;
+            fragment_shader_info.code = msl_fragment;
+            fragment_shader_info.code_size = sizeof(msl_fragment);
+        }
     }
 #endif
     bd->VertexShader = SDL_CreateGPUShader(v->Device, &vertex_shader_info);
@@ -574,9 +596,14 @@ void ImGui_ImplSDLGPU3_CreateDeviceObjects()
         sampler_info.enable_anisotropy = false;
         sampler_info.max_anisotropy = 1.0f;
         sampler_info.enable_compare = false;
-
         bd->TexSamplerLinear = SDL_CreateGPUSampler(v->Device, &sampler_info);
         IM_ASSERT(bd->TexSamplerLinear != nullptr && "Failed to create sampler, call SDL_GetError() for more information");
+
+        sampler_info.min_filter = SDL_GPU_FILTER_NEAREST;
+        sampler_info.mag_filter = SDL_GPU_FILTER_NEAREST;
+        sampler_info.mipmap_mode = SDL_GPU_SAMPLERMIPMAPMODE_NEAREST;
+        bd->TexSamplerNearest = SDL_CreateGPUSampler(v->Device, &sampler_info);
+        IM_ASSERT(bd->TexSamplerNearest != nullptr && "Failed to create sampler, call SDL_GetError() for more information");
     }
 
     ImGui_ImplSDLGPU3_CreateGraphicsPipeline();
@@ -612,6 +639,7 @@ void ImGui_ImplSDLGPU3_DestroyDeviceObjects()
     if (bd->VertexShader)       { SDL_ReleaseGPUShader(v->Device, bd->VertexShader); bd->VertexShader = nullptr; }
     if (bd->FragmentShader)     { SDL_ReleaseGPUShader(v->Device, bd->FragmentShader); bd->FragmentShader = nullptr; }
     if (bd->TexSamplerLinear)   { SDL_ReleaseGPUSampler(v->Device, bd->TexSamplerLinear); bd->TexSamplerLinear = nullptr; }
+    if (bd->TexSamplerNearest)  { SDL_ReleaseGPUSampler(v->Device, bd->TexSamplerNearest); bd->TexSamplerNearest = nullptr; }
     if (bd->Pipeline)           { SDL_ReleaseGPUGraphicsPipeline(v->Device, bd->Pipeline); bd->Pipeline = nullptr; }
 }
 

backends/imgui_impl_sdlgpu3.h

@@ -48,7 +48,7 @@ IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data,
 IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_DestroyDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_UpdateTexture(ImTextureData* tex);
 
 // [BETA] Selected render state data shared with callbacks.
@@ -57,7 +57,8 @@ IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_UpdateTexture(ImTextureData* tex);
 struct ImGui_ImplSDLGPU3_RenderState
 {
     SDL_GPUDevice*      Device;
-    SDL_GPUSampler*     SamplerDefault;     // Default sampler (bilinear filtering)
+    SDL_GPUSampler*     SamplerLinear;      // Bilinear filtering sampler
+    SDL_GPUSampler*     SamplerNearest;     // Nearest/point filtering sampler
     SDL_GPUSampler*     SamplerCurrent;     // Current sampler (may be changed by callback)
 };
 

backends/imgui_impl_sdlgpu3_shaders.h

@@ -221,6 +221,40 @@ const uint8_t metallib_fragment[3787]  = {
     148,161,0,0,0,0,109,97,105,110,48,97,105,114,46,115,97,109,112,108,101,95,116,101,120,116,117,114,101,95,50,100,46,118,52,102,51,50,51,50,48,50,51,46,51,54,56,97,105,114,54,52,45,97,
     112,112,108,101,45,109,97,99,111,115,120,49,52,46,48,46,48,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 };
+static uint8_t msl_vertex[800] =
+{
+    35,105,110,99,108,117,100,101,32,60,109,101,116,97,108,95,115,116,100,108,105,98,62,10,35,105,110,99,108,117,100,101,32,60,115,105,109,100,47,115,105,109,100,46,104,62,10,10,117,115,
+    105,110,103,32,110,97,109,101,115,112,97,99,101,32,109,101,116,97,108,59,10,10,115,116,114,117,99,116,32,95,57,10,123,10,32,32,32,32,102,108,111,97,116,52,32,67,111,108,111,114,59,
+    10,32,32,32,32,102,108,111,97,116,50,32,85,86,59,10,125,59,10,10,115,116,114,117,99,116,32,85,66,79,10,123,10,32,32,32,32,102,108,111,97,116,50,32,117,83,99,97,108,101,59,10,32,32,
+    32,32,102,108,111,97,116,50,32,117,84,114,97,110,115,108,97,116,101,59,10,125,59,10,10,115,116,114,117,99,116,32,109,97,105,110,48,95,111,117,116,10,123,10,32,32,32,32,102,108,111,
+    97,116,52,32,79,117,116,95,67,111,108,111,114,32,91,91,117,115,101,114,40,108,111,99,110,48,41,93,93,59,10,32,32,32,32,102,108,111,97,116,50,32,79,117,116,95,85,86,32,91,91,117,115,
+    101,114,40,108,111,99,110,49,41,93,93,59,10,32,32,32,32,102,108,111,97,116,52,32,103,108,95,80,111,115,105,116,105,111,110,32,91,91,112,111,115,105,116,105,111,110,93,93,59,10,125,
+    59,10,10,115,116,114,117,99,116,32,109,97,105,110,48,95,105,110,10,123,10,32,32,32,32,102,108,111,97,116,50,32,97,80,111,115,32,91,91,97,116,116,114,105,98,117,116,101,40,48,41,93,
+    93,59,10,32,32,32,32,102,108,111,97,116,50,32,97,85,86,32,91,91,97,116,116,114,105,98,117,116,101,40,49,41,93,93,59,10,32,32,32,32,102,108,111,97,116,52,32,97,67,111,108,111,114,32,
+    91,91,97,116,116,114,105,98,117,116,101,40,50,41,93,93,59,10,125,59,10,10,118,101,114,116,101,120,32,109,97,105,110,48,95,111,117,116,32,109,97,105,110,48,40,109,97,105,110,48,95,105,
+    110,32,105,110,32,91,91,115,116,97,103,101,95,105,110,93,93,44,32,99,111,110,115,116,97,110,116,32,85,66,79,38,32,117,98,111,32,91,91,98,117,102,102,101,114,40,48,41,93,93,41,10,123,
+    10,32,32,32,32,109,97,105,110,48,95,111,117,116,32,111,117,116,32,61,32,123,125,59,10,32,32,32,32,95,57,32,79,117,116,32,61,32,123,125,59,10,32,32,32,32,79,117,116,46,67,111,108,111,
+    114,32,61,32,105,110,46,97,67,111,108,111,114,59,10,32,32,32,32,79,117,116,46,85,86,32,61,32,105,110,46,97,85,86,59,10,32,32,32,32,111,117,116,46,103,108,95,80,111,115,105,116,105,
+    111,110,32,61,32,102,108,111,97,116,52,40,40,105,110,46,97,80,111,115,32,42,32,117,98,111,46,117,83,99,97,108,101,41,32,43,32,117,98,111,46,117,84,114,97,110,115,108,97,116,101,44,
+    32,48,46,48,44,32,49,46,48,41,59,10,32,32,32,32,111,117,116,46,103,108,95,80,111,115,105,116,105,111,110,46,121,32,42,61,32,40,45,49,46,48,41,59,10,32,32,32,32,111,117,116,46,79,117,
+    116,95,67,111,108,111,114,32,61,32,79,117,116,46,67,111,108,111,114,59,10,32,32,32,32,111,117,116,46,79,117,116,95,85,86,32,61,32,79,117,116,46,85,86,59,10,32,32,32,32,114,101,116,
+    117,114,110,32,111,117,116,59,10,125,10,10,
+};
+static uint8_t msl_fragment[580] =
+{
+    35,105,110,99,108,117,100,101,32,60,109,101,116,97,108,95,115,116,100,108,105,98,62,10,35,105,110,99,108,117,100,101,32,60,115,105,109,100,47,115,105,109,100,46,104,62,10,10,117,115,
+    105,110,103,32,110,97,109,101,115,112,97,99,101,32,109,101,116,97,108,59,10,10,115,116,114,117,99,116,32,95,49,49,10,123,10,32,32,32,32,102,108,111,97,116,52,32,67,111,108,111,114,
+    59,10,32,32,32,32,102,108,111,97,116,50,32,85,86,59,10,125,59,10,10,115,116,114,117,99,116,32,109,97,105,110,48,95,111,117,116,10,123,10,32,32,32,32,102,108,111,97,116,52,32,102,67,
+    111,108,111,114,32,91,91,99,111,108,111,114,40,48,41,93,93,59,10,125,59,10,10,115,116,114,117,99,116,32,109,97,105,110,48,95,105,110,10,123,10,32,32,32,32,102,108,111,97,116,52,32,
+    73,110,95,67,111,108,111,114,32,91,91,117,115,101,114,40,108,111,99,110,48,41,93,93,59,10,32,32,32,32,102,108,111,97,116,50,32,73,110,95,85,86,32,91,91,117,115,101,114,40,108,111,99,
+    110,49,41,93,93,59,10,125,59,10,10,102,114,97,103,109,101,110,116,32,109,97,105,110,48,95,111,117,116,32,109,97,105,110,48,40,109,97,105,110,48,95,105,110,32,105,110,32,91,91,115,116,
+    97,103,101,95,105,110,93,93,44,32,116,101,120,116,117,114,101,50,100,60,102,108,111,97,116,62,32,115,84,101,120,116,117,114,101,32,91,91,116,101,120,116,117,114,101,40,48,41,93,93,
+    44,32,115,97,109,112,108,101,114,32,115,84,101,120,116,117,114,101,83,109,112,108,114,32,91,91,115,97,109,112,108,101,114,40,48,41,93,93,41,10,123,10,32,32,32,32,109,97,105,110,48,
+    95,111,117,116,32,111,117,116,32,61,32,123,125,59,10,32,32,32,32,95,49,49,32,73,110,32,61,32,123,125,59,10,32,32,32,32,73,110,46,67,111,108,111,114,32,61,32,105,110,46,73,110,95,67,
+    111,108,111,114,59,10,32,32,32,32,73,110,46,85,86,32,61,32,105,110,46,73,110,95,85,86,59,10,32,32,32,32,111,117,116,46,102,67,111,108,111,114,32,61,32,73,110,46,67,111,108,111,114,
+    32,42,32,115,84,101,120,116,117,114,101,46,115,97,109,112,108,101,40,115,84,101,120,116,117,114,101,83,109,112,108,114,44,32,73,110,46,85,86,41,59,10,32,32,32,32,114,101,116,117,114,
+    110,32,111,117,116,59,10,125,10,10,
+};
 #elif TARGET_OS_IPHONE
 const uint8_t metallib_vertex[3876]  = {
     77,84,76,66,1,0,2,0,7,0,0,130,18,0,1,0,36,15,0,0,0,0,0,0,88,0,0,0,0,0,0,0,123,0,0,0,0,0,0,0,219,0,0,0,0,0,0,0,49,0,0,0,0,0,0,0,12,1,0,0,0,0,0,0,8,0,0,0,0,0,0,0,20,1,0,0,0,0,0,0,16,

backends/imgui_impl_sdlrenderer2.cpp

@@ -24,6 +24,7 @@
 // - Introduction, links and more at the top of imgui.cpp
 
 // CHANGELOG
+//  2026-03-12: Fixed invalid assert in ImGui_ImplSDLRenderer2_UpdateTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplSDLRenderer2_CreateFontsTexture() and ImGui_ImplSDLRenderer2_DestroyFontsTexture().
 //  2025-01-18: Use endian-dependent RGBA32 texture format, to match SDL_Color.
@@ -267,8 +268,9 @@ void ImGui_ImplSDLRenderer2_UpdateTexture(ImTextureData* tex)
     }
     else if (tex->Status == ImTextureStatus_WantDestroy)
     {
-        if (SDL_Texture* sdl_texture = (SDL_Texture*)(intptr_t)tex->TexID)
-            SDL_DestroyTexture(sdl_texture);
+        if (tex->TexID != ImTextureID_Invalid)
+            if (SDL_Texture* sdl_texture = (SDL_Texture*)(intptr_t)tex->TexID)
+                SDL_DestroyTexture(sdl_texture);
 
         // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
         tex->SetTexID(ImTextureID_Invalid);

backends/imgui_impl_sdlrenderer2.h

@@ -39,7 +39,7 @@ IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_d
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_DestroyDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_UpdateTexture(ImTextureData* tex);
 
 // [BETA] Selected render state data shared with callbacks.

backends/imgui_impl_sdlrenderer3.cpp

@@ -24,6 +24,7 @@
 // - Introduction, links and more at the top of imgui.cpp
 
 // CHANGELOG
+//  2026-03-12: Fixed invalid assert in ImGui_ImplSDLRenderer3_UpdateTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplSDLRenderer3_CreateFontsTexture() and ImGui_ImplSDLRenderer3_DestroyFontsTexture().
 //  2025-01-18: Use endian-dependent RGBA32 texture format, to match SDL_Color.
@@ -254,7 +255,7 @@ void ImGui_ImplSDLRenderer3_UpdateTexture(ImTextureData* tex)
     {
         // Create and upload new texture to graphics system
         //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == 0 && tex->BackendUserData == nullptr);
+        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
         IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
 
         // Create texture
@@ -283,8 +284,9 @@ void ImGui_ImplSDLRenderer3_UpdateTexture(ImTextureData* tex)
     }
     else if (tex->Status == ImTextureStatus_WantDestroy)
     {
-        if (SDL_Texture* sdl_texture = (SDL_Texture*)(intptr_t)tex->TexID)
-            SDL_DestroyTexture(sdl_texture);
+        if (tex->TexID != ImTextureID_Invalid)
+            if (SDL_Texture* sdl_texture = (SDL_Texture*)(intptr_t)tex->TexID)
+                SDL_DestroyTexture(sdl_texture);
 
         // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
         tex->SetTexID(ImTextureID_Invalid);

backends/imgui_impl_sdlrenderer3.h

@@ -39,7 +39,7 @@ IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_d
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_DestroyDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_UpdateTexture(ImTextureData* tex);
 
 // [BETA] Selected render state data shared with callbacks.

backends/imgui_impl_vulkan.cpp

@@ -27,9 +27,14 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-03-11: Vulkan: Added ImGui_ImplVulkan_PipelineInfo::ExtraDynamicStates[] to allow specifying extra dynamic states to add when creating the VkPipeline. (#9211)
+//  2025-09-26: [Helpers] *BREAKING CHANGE*: Vulkan: Helper ImGui_ImplVulkanH_DestroyWindow() does not call vkDestroySurfaceKHR(): as surface is created by caller of ImGui_ImplVulkanH_CreateOrResizeWindow(), it is more consistent that we don't destroy it. (#9163)
+//  2026-01-05: [Helpers] *BREAKING CHANGE*: Vulkan: Helper for creating render pass uses ImGui_ImplVulkanH_Window::AttachmentDesc to create render pass. Removed ClearEnabled. (#9152)
+//  2025-11-24: [Helpers] Vulkan: Helper for creating a swap-chain (used by examples and multi-viewports) selects VkSwapchainCreateInfoKHR's compositeAlpha based on cap.supportedCompositeAlpha. (#8784)
+//  2025-10-15: Vulkan: Added IMGUI_IMPL_VULKAN_VOLK_FILENAME to configure path to volk.h header. (#9008)
 //  2025-09-26: *BREAKING CHANGE*: moved some fields in ImGui_ImplVulkan_InitInfo: init_info.RenderPass --> init_info.PipelineInfoMain.RenderPass, init_info.Subpass --> init_info.PipelineInfoMain.Subpass, init_info.MSAASamples --> init_info.PipelineInfoMain.MSAASamples, init_info.PipelineRenderingCreateInfo --> init_info.PipelineInfoMain.PipelineRenderingCreateInfo.
 //  2025-09-26: *BREAKING CHANGE*: renamed ImGui_ImplVulkan_MainPipelineCreateInfo to ImGui_ImplVulkan_PipelineInfo. Introduced very recently so shouldn't affect many users.
-//  2025-09-26: *BREAKING CHANGE*: helper ImGui_ImplVulkanH_CreateOrResizeWindow() added a VkImageUsageFlags image_usage` argument, default to VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT if 0.
+//  2025-09-26: [Helpers] *BREAKING CHANGE*: Helper ImGui_ImplVulkanH_CreateOrResizeWindow() added a VkImageUsageFlags image_usage` argument, default to VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT if 0.
 //  2025-09-26: Vulkan: Added a way to customize shaders by filling ImGui_ImplVulkan_InitInfo::CustomShaderVertCreateInfo/CustomShaderFragCreateInfo. (#8585)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-09-04: Vulkan: Added ImGui_ImplVulkan_CreateMainPipeline(). (#8110, #8111)
@@ -43,8 +48,8 @@
 //  2025-02-14: *BREAKING CHANGE*: Added uint32_t api_version to ImGui_ImplVulkan_LoadFunctions().
 //  2025-02-13: Vulkan: Added ApiVersion field in ImGui_ImplVulkan_InitInfo. Default to header version if unspecified. Dynamic rendering path loads "vkCmdBeginRendering/vkCmdEndRendering" (without -KHR suffix) on API 1.3. (#8326)
 //  2025-01-09: Vulkan: Added IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE to clarify how many image sampler descriptors are expected to be available in descriptor pool. (#6642)
-//  2025-01-06: Vulkan: Added more ImGui_ImplVulkanH_XXXX helper functions to simplify our examples.
-//  2024-12-11: Vulkan: Fixed setting VkSwapchainCreateInfoKHR::preTransform for platforms not supporting VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR. (#8222)
+//  2025-01-06: [Helpers] Vulkan: Added more ImGui_ImplVulkanH_XXXX helper functions to simplify our examples.
+//  2024-12-11: [Helpers] Vulkan: Fixed setting VkSwapchainCreateInfoKHR::preTransform for platforms not supporting VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR. (#8222)
 //  2024-11-27: Vulkan: Make user-provided descriptor pool optional. As a convenience, when setting init_info->DescriptorPoolSize the backend will create one itself. (#8172, #4867)
 //  2024-10-07: Vulkan: Changed default texture sampler to Clamp instead of Repeat/Wrap.
 //  2024-10-07: Vulkan: Expose selected render state in ImGui_ImplVulkan_RenderState, which you can access in 'void* platform_io.Renderer_RenderState' during draw callbacks.
@@ -52,7 +57,7 @@
 //  2024-04-19: Vulkan: Added convenience support for Volk via IMGUI_IMPL_VULKAN_USE_VOLK define (you can also use IMGUI_IMPL_VULKAN_NO_PROTOTYPES + wrap Volk via ImGui_ImplVulkan_LoadFunctions().)
 //  2024-02-14: *BREAKING CHANGE*: Moved RenderPass parameter from ImGui_ImplVulkan_Init() function to ImGui_ImplVulkan_InitInfo structure. Not required when using dynamic rendering.
 //  2024-02-12: *BREAKING CHANGE*: Dynamic rendering now require filling PipelineRenderingCreateInfo structure.
-//  2024-01-19: Vulkan: Fixed vkAcquireNextImageKHR() validation errors in VulkanSDK 1.3.275 by allocating one extra semaphore than in-flight frames. (#7236)
+//  2024-01-19: [Helpers] Vulkan: Fixed vkAcquireNextImageKHR() validation errors in VulkanSDK 1.3.275 by allocating one extra semaphore than in-flight frames. (#7236)
 //  2024-01-11: Vulkan: Fixed vkMapMemory() calls unnecessarily using full buffer size (#3957). Fixed MinAllocationSize handing (#7189).
 //  2024-01-03: Vulkan: Added MinAllocationSize field in ImGui_ImplVulkan_InitInfo to workaround zealous "best practice" validation layer. (#7189, #4238)
 //  2024-01-03: Vulkan: Stopped creating command pools with VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT as we don't reset them.
@@ -80,16 +85,16 @@
 //  2019-05-29: Vulkan: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
 //  2019-04-30: Vulkan: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
 //  2019-04-04: *BREAKING CHANGE*: Vulkan: Added ImageCount/MinImageCount fields in ImGui_ImplVulkan_InitInfo, required for initialization (was previously a hard #define IMGUI_VK_QUEUED_FRAMES 2). Added ImGui_ImplVulkan_SetMinImageCount().
-//  2019-04-04: Vulkan: Added VkInstance argument to ImGui_ImplVulkanH_CreateWindow() optional helper.
+//  2019-04-04: [Helpers] Vulkan: Added VkInstance argument to ImGui_ImplVulkanH_CreateWindow() optional helper.
 //  2019-04-04: Vulkan: Avoid passing negative coordinates to vkCmdSetScissor, which debug validation layers do not like.
 //  2019-04-01: Vulkan: Support for 32-bit index buffer (#define ImDrawIdx unsigned int).
 //  2019-02-16: Vulkan: Viewport and clipping rectangles correctly using draw_data->FramebufferScale to allow retina display.
 //  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
-//  2018-08-25: Vulkan: Fixed mishandled VkSurfaceCapabilitiesKHR::maxImageCount=0 case.
+//  2018-08-25: [Helpers] Vulkan: Fixed mishandled VkSurfaceCapabilitiesKHR::maxImageCount=0 case.
 //  2018-06-22: Inverted the parameters to ImGui_ImplVulkan_RenderDrawData() to be consistent with other backends.
 //  2018-06-08: Misc: Extracted imgui_impl_vulkan.cpp/.h away from the old combined GLFW+Vulkan example.
 //  2018-06-08: Vulkan: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
-//  2018-03-03: Vulkan: Various refactor, created a couple of ImGui_ImplVulkanH_XXX helper that the example can use and that viewport support will use.
+//  2018-03-03: [Helpers] Vulkan: Various refactor, created a couple of ImGui_ImplVulkanH_XXX helper that the example can use and that viewport support will use.
 //  2018-03-01: Vulkan: Renamed ImGui_ImplVulkan_Init_Info to ImGui_ImplVulkan_InitInfo and fields to match more closely Vulkan terminology.
 //  2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback, ImGui_ImplVulkan_Render() calls ImGui_ImplVulkan_RenderDrawData() itself.
 //  2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
@@ -112,6 +117,14 @@
 #pragma warning (disable: 4127) // condition expression is constant
 #endif
 
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic ignored "-Wold-style-cast"                 // warning: use of old-style cast
+#pragma clang diagnostic ignored "-Wsign-conversion"                // warning: implicit conversion changes signedness
+#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
+#pragma clang diagnostic ignored "-Wcast-function-type"             // warning: cast between incompatible function types (for loader)
+#endif
+
 // Forward Declarations
 struct ImGui_ImplVulkan_FrameRenderBuffers;
 struct ImGui_ImplVulkan_WindowRenderBuffers;
@@ -258,7 +271,7 @@ struct ImGui_ImplVulkan_Data
     VkPipelineCreateFlags       PipelineCreateFlags;
     VkDescriptorSetLayout       DescriptorSetLayout;
     VkPipelineLayout            PipelineLayout;
-    VkPipeline                  Pipeline;
+    VkPipeline                  Pipeline;               // pipeline for main render pass (created by app)
     VkShaderModule              ShaderModuleVert;
     VkShaderModule              ShaderModuleFrag;
     VkDescriptorPool            DescriptorPool;
@@ -496,14 +509,12 @@ static void ImGui_ImplVulkan_SetupRenderState(ImDrawData* draw_data, VkPipeline
     // Setup scale and translation:
     // Our visible imgui space lies from draw_data->DisplayPps (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
     {
-        float scale[2];
-        scale[0] = 2.0f / draw_data->DisplaySize.x;
-        scale[1] = 2.0f / draw_data->DisplaySize.y;
-        float translate[2];
-        translate[0] = -1.0f - draw_data->DisplayPos.x * scale[0];
-        translate[1] = -1.0f - draw_data->DisplayPos.y * scale[1];
-        vkCmdPushConstants(command_buffer, bd->PipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, sizeof(float) * 0, sizeof(float) * 2, scale);
-        vkCmdPushConstants(command_buffer, bd->PipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, sizeof(float) * 2, sizeof(float) * 2, translate);
+        float constants[4];
+        constants[0] = 2.0f / draw_data->DisplaySize.x; // Scale
+        constants[1] = 2.0f / draw_data->DisplaySize.y;
+        constants[2] = -1.0f - draw_data->DisplayPos.x * constants[0]; // Translate
+        constants[3] = -1.0f - draw_data->DisplayPos.y * constants[1];
+        vkCmdPushConstants(command_buffer, bd->PipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(float) * 4, constants);
     }
 }
 
@@ -997,11 +1008,13 @@ static VkPipeline ImGui_ImplVulkan_CreatePipeline(VkDevice device, const VkAlloc
     blend_info.attachmentCount = 1;
     blend_info.pAttachments = color_attachment;
 
-    VkDynamicState dynamic_states[2] = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
+    ImVector<VkDynamicState> dynamic_states = info->ExtraDynamicStates;
+    dynamic_states.push_back(VK_DYNAMIC_STATE_VIEWPORT);
+    dynamic_states.push_back(VK_DYNAMIC_STATE_SCISSOR);
     VkPipelineDynamicStateCreateInfo dynamic_state = {};
     dynamic_state.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
-    dynamic_state.dynamicStateCount = (uint32_t)IM_ARRAYSIZE(dynamic_states);
-    dynamic_state.pDynamicStates = dynamic_states;
+    dynamic_state.dynamicStateCount = dynamic_states.Size;
+    dynamic_state.pDynamicStates = dynamic_states.Data;
 
     VkGraphicsPipelineCreateInfo create_info = {};
     create_info.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
@@ -1152,7 +1165,7 @@ void ImGui_ImplVulkan_CreateMainPipeline(const ImGui_ImplVulkan_PipelineInfo* pi
 
 #ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
     VkPipelineRenderingCreateInfoKHR* pipeline_rendering_create_info = &pipeline_info->PipelineRenderingCreateInfo;
-    if (v->UseDynamicRendering && pipeline_rendering_create_info->pColorAttachmentFormats != NULL)
+    if (v->UseDynamicRendering && pipeline_rendering_create_info->pColorAttachmentFormats != nullptr)
     {
         // Deep copy buffer to reduce error-rate for end user (#8282)
         ImVector<VkFormat> formats;
@@ -1361,6 +1374,7 @@ VkDescriptorSet ImGui_ImplVulkan_AddTexture(VkSampler sampler, VkImageView image
     }
 
     // Update the Descriptor Set:
+    if (descriptor_set != VK_NULL_HANDLE)
     {
         VkDescriptorImageInfo desc_image[1] = {};
         desc_image[0].sampler = sampler;
@@ -1633,10 +1647,15 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
         info.imageFormat = wd->SurfaceFormat.format;
         info.imageColorSpace = wd->SurfaceFormat.colorSpace;
         info.imageArrayLayers = 1;
-        info.imageUsage = (image_usage != 0) ? image_usage : VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
+        info.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | image_usage;
         info.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;           // Assume that graphics family == present family
         info.preTransform = (cap.supportedTransforms & VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR) ? VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR : cap.currentTransform;
-        info.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
+        if (cap.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR)
+            info.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
+        else if (cap.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR)
+            info.compositeAlpha = VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR;
+        else
+            IM_ASSERT(false && "No supported composite alpha mode found!");
         info.presentMode = wd->PresentMode;
         info.clipped = VK_TRUE;
         info.oldSwapchain = old_swapchain;
@@ -1660,7 +1679,7 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
         check_vk_result(err);
         VkImage backbuffers[16] = {};
         IM_ASSERT(wd->ImageCount >= min_image_count);
-        IM_ASSERT(wd->ImageCount < IM_ARRAYSIZE(backbuffers));
+        IM_ASSERT(wd->ImageCount < IM_COUNTOF(backbuffers));
         err = vkGetSwapchainImagesKHR(device, wd->Swapchain, &wd->ImageCount, backbuffers);
         check_vk_result(err);
 
@@ -1678,15 +1697,9 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
     // Create the Render Pass
     if (wd->UseDynamicRendering == false)
     {
-        VkAttachmentDescription attachment = {};
-        attachment.format = wd->SurfaceFormat.format;
-        attachment.samples = VK_SAMPLE_COUNT_1_BIT;
-        attachment.loadOp = wd->ClearEnable ? VK_ATTACHMENT_LOAD_OP_CLEAR : VK_ATTACHMENT_LOAD_OP_DONT_CARE;
-        attachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
-        attachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
-        attachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
-        attachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
-        attachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
+        VkAttachmentDescription attachment = wd->AttachmentDesc;
+        if (attachment.format == VK_FORMAT_UNDEFINED)
+            attachment.format = wd->SurfaceFormat.format;
         VkAttachmentReference color_attachment = {};
         color_attachment.attachment = 0;
         color_attachment.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
@@ -1765,7 +1778,9 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
 void ImGui_ImplVulkanH_CreateOrResizeWindow(VkInstance instance, VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, uint32_t queue_family, const VkAllocationCallbacks* allocator, int width, int height, uint32_t min_image_count, VkImageUsageFlags image_usage)
 {
     IM_ASSERT(g_FunctionsLoaded && "Need to call ImGui_ImplVulkan_LoadFunctions() if IMGUI_IMPL_VULKAN_NO_PROTOTYPES or VK_NO_PROTOTYPES are set!");
-    (void)instance;
+    IM_ASSERT(wd->Surface != VK_NULL_HANDLE);
+    IM_UNUSED(instance);
+
     ImGui_ImplVulkanH_CreateWindowSwapChain(physical_device, device, wd, allocator, width, height, min_image_count, image_usage);
     ImGui_ImplVulkanH_CreateWindowCommandBuffers(physical_device, device, wd, queue_family, allocator);
 
@@ -1776,7 +1791,6 @@ void ImGui_ImplVulkanH_CreateOrResizeWindow(VkInstance instance, VkPhysicalDevic
     VkCommandPoolCreateInfo pool_info = {};
     pool_info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
     pool_info.queueFamilyIndex = queue_family;
-    pool_info.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
     VkResult err = vkCreateCommandPool(device, &pool_info, allocator, &command_pool);
     check_vk_result(err);
 
@@ -1848,6 +1862,7 @@ void ImGui_ImplVulkanH_CreateOrResizeWindow(VkInstance instance, VkPhysicalDevic
 
 void ImGui_ImplVulkanH_DestroyWindow(VkInstance instance, VkDevice device, ImGui_ImplVulkanH_Window* wd, const VkAllocationCallbacks* allocator)
 {
+    IM_UNUSED(instance);
     vkDeviceWaitIdle(device); // FIXME: We could wait on the Queue if we had the queue in wd-> (otherwise VulkanH functions can't use globals)
     //vkQueueWaitIdle(bd->Queue);
 
@@ -1860,9 +1875,11 @@ void ImGui_ImplVulkanH_DestroyWindow(VkInstance instance, VkDevice device, ImGui
     vkDestroyPipeline(device, wd->Pipeline, allocator);
     vkDestroyRenderPass(device, wd->RenderPass, allocator);
     vkDestroySwapchainKHR(device, wd->Swapchain, allocator);
-    vkDestroySurfaceKHR(instance, wd->Surface, allocator);
-
-    *wd = ImGui_ImplVulkanH_Window();
+    wd->RenderPass = VK_NULL_HANDLE;
+    wd->Swapchain = VK_NULL_HANDLE;
+    wd->Width = wd->Height = 0;
+    wd->FrameIndex = wd->ImageCount = wd->SemaphoreCount = wd->SemaphoreIndex = 0;
+    //vkDestroySurfaceKHR(instance, wd->Surface, allocator); // v1.92.6 (~2026-01-16): because wd->Surface is user provided we don't attempt to destroy it ourself.
 }
 
 void ImGui_ImplVulkanH_DestroyFrame(VkDevice device, ImGui_ImplVulkanH_Frame* fd, const VkAllocationCallbacks* allocator)

backends/imgui_impl_vulkan.h

@@ -41,9 +41,20 @@
 // If you have no idea what this is, leave it alone!
 //#define IMGUI_IMPL_VULKAN_NO_PROTOTYPES
 
-// Convenience support for Volk
+// [Configuration] Convenience support for Volk
 // (you can also technically use IMGUI_IMPL_VULKAN_NO_PROTOTYPES + wrap Volk via ImGui_ImplVulkan_LoadFunctions().)
+// (When using Volk from directory outside your include directories list you can specify full path to the volk.h header,
+//  for example when using Volk from VulkanSDK and using include_directories(${Vulkan_INCLUDE_DIRS})' from 'find_package(Vulkan REQUIRED)')
 //#define IMGUI_IMPL_VULKAN_USE_VOLK
+//#define IMGUI_IMPL_VULKAN_VOLK_FILENAME    <Volk/volk.h>
+//#define IMGUI_IMPL_VULKAN_VOLK_FILENAME    <volk.h>       // Default
+// Reminder: make those changes in your imconfig.h file, not here!
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast
+#endif
 
 #if defined(IMGUI_IMPL_VULKAN_NO_PROTOTYPES) && !defined(VK_NO_PROTOTYPES)
 #define VK_NO_PROTOTYPES
@@ -54,7 +65,11 @@
 
 // Vulkan includes
 #ifdef IMGUI_IMPL_VULKAN_USE_VOLK
+#ifdef IMGUI_IMPL_VULKAN_VOLK_FILENAME
+#include IMGUI_IMPL_VULKAN_VOLK_FILENAME
+#else
 #include <volk.h>
+#endif
 #else
 #include <vulkan/vulkan.h>
 #endif
@@ -68,10 +83,10 @@
 // Specify settings to create pipeline and swapchain
 struct ImGui_ImplVulkan_PipelineInfo
 {
-    // For Main and Secondary viewports
     VkRenderPass                    RenderPass;                     // Ignored if using dynamic rendering
     uint32_t                        Subpass;                        //
     VkSampleCountFlagBits           MSAASamples = {};               // 0 defaults to VK_SAMPLE_COUNT_1_BIT
+    ImVector<VkDynamicState>        ExtraDynamicStates;             // Optional, allows to insert more dynamic states into our VkPipeline
 #ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
     VkPipelineRenderingCreateInfoKHR PipelineRenderingCreateInfo;   // Optional, valid if .sType == VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR
 #endif
@@ -84,7 +99,7 @@ struct ImGui_ImplVulkan_PipelineInfo
 //     and must contain a pool size large enough to hold a small number of VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER descriptors.
 //   - As an convenience, by setting DescriptorPoolSize > 0 the backend will create one for you.
 // - About dynamic rendering:
-//   - When using dynamic rendering, set UseDynamicRendering=true and fill PipelineRenderingCreateInfo structure.
+//   - When using dynamic rendering, set UseDynamicRendering=true + fill PipelineInfoMain.PipelineRenderingCreateInfo structure.
 struct ImGui_ImplVulkan_InitInfo
 {
     uint32_t                        ApiVersion;                 // Fill with API version of Instance, e.g. VK_API_VERSION_1_3 or your value of VkApplicationInfo::apiVersion. May be lower than header version (VK_HEADER_VERSION_COMPLETE)
@@ -134,7 +149,7 @@ IMGUI_IMPL_API void             ImGui_ImplVulkan_SetMinImageCount(uint32_t min_i
 // Else, the pipeline can be created, or re-created, using ImGui_ImplVulkan_CreateMainPipeline() before rendering.
 IMGUI_IMPL_API void             ImGui_ImplVulkan_CreateMainPipeline(const ImGui_ImplVulkan_PipelineInfo* info);
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void             ImGui_ImplVulkan_UpdateTexture(ImTextureData* tex);
 
 // Register a texture (VkDescriptorSet == ImTextureID)
@@ -163,6 +178,7 @@ struct ImGui_ImplVulkan_RenderState
 // Used by example's main.cpp. Used by multi-viewport features. PROBABLY NOT used by your own engine/app.
 //
 // You probably do NOT need to use or care about those functions.
+// WE DO NOT PROVIDE STRONG GUARANTEES OF BACKWARD/FORWARD COMPATIBILITY.
 // Those functions only exist because:
 //   1) they facilitate the readability and maintenance of the multiple main.cpp examples files.
 //   2) the multi-viewport / platform window implementation needs them internally.
@@ -173,8 +189,6 @@ struct ImGui_ImplVulkan_RenderState
 // render pass, frame buffers, etc.). You may read this code if you are curious, but
 // it is recommended you use your own custom tailored code to do equivalent work.
 //
-// We don't provide a strong guarantee that we won't change those functions API.
-//
 // The ImGui_ImplVulkanH_XXX functions should NOT interact with any of the state used
 // by the regular ImGui_ImplVulkan_XXX functions.
 //-------------------------------------------------------------------------
@@ -214,30 +228,48 @@ struct ImGui_ImplVulkanH_FrameSemaphores
 // (Used by example's main.cpp. Used by multi-viewport features. Probably NOT used by your own engine/app.)
 struct ImGui_ImplVulkanH_Window
 {
-    int                 Width;
-    int                 Height;
-    VkSwapchainKHR      Swapchain;
-    VkSurfaceKHR        Surface;
-    VkSurfaceFormatKHR  SurfaceFormat;
-    VkPresentModeKHR    PresentMode;
-    VkRenderPass        RenderPass;
-    VkPipeline          Pipeline;               // The window pipeline may uses a different VkRenderPass than the one passed in ImGui_ImplVulkan_InitInfo
-    bool                UseDynamicRendering;
-    bool                ClearEnable;
-    VkClearValue        ClearValue;
-    uint32_t            FrameIndex;             // Current frame being rendered to (0 <= FrameIndex < FrameInFlightCount)
-    uint32_t            ImageCount;             // Number of simultaneous in-flight frames (returned by vkGetSwapchainImagesKHR, usually derived from min_image_count)
-    uint32_t            SemaphoreCount;         // Number of simultaneous in-flight frames + 1, to be able to use it in vkAcquireNextImageKHR
-    uint32_t            SemaphoreIndex;         // Current set of swapchain wait semaphores we're using (needs to be distinct from per frame data)
+    // Input
+    bool                    UseDynamicRendering;
+    VkSurfaceKHR            Surface;            // Surface created and destroyed by caller.
+    VkSurfaceFormatKHR      SurfaceFormat;
+    VkPresentModeKHR        PresentMode;
+    VkAttachmentDescription AttachmentDesc;     // RenderPass creation: main attachment description.
+    VkClearValue            ClearValue;         // RenderPass creation: clear value when using VK_ATTACHMENT_LOAD_OP_CLEAR.
+
+    // Internal
+    int                     Width;              // Generally same as passed to ImGui_ImplVulkanH_CreateOrResizeWindow()
+    int                     Height;
+    VkSwapchainKHR          Swapchain;
+    VkRenderPass            RenderPass;
+    VkPipeline              Pipeline;           // The window pipeline may uses a different VkRenderPass than the one passed in ImGui_ImplVulkan_InitInfo
+    uint32_t                FrameIndex;         // Current frame being rendered to (0 <= FrameIndex < FrameInFlightCount)
+    uint32_t                ImageCount;         // Number of simultaneous in-flight frames (returned by vkGetSwapchainImagesKHR, usually derived from min_image_count)
+    uint32_t                SemaphoreCount;     // Number of simultaneous in-flight frames + 1, to be able to use it in vkAcquireNextImageKHR
+    uint32_t                SemaphoreIndex;     // Current set of swapchain wait semaphores we're using (needs to be distinct from per frame data)
     ImVector<ImGui_ImplVulkanH_Frame>           Frames;
     ImVector<ImGui_ImplVulkanH_FrameSemaphores> FrameSemaphores;
 
     ImGui_ImplVulkanH_Window()
     {
         memset((void*)this, 0, sizeof(*this));
-        PresentMode = (VkPresentModeKHR)~0;     // Ensure we get an error if user doesn't set this.
-        ClearEnable = true;
+
+        // Parameters to create SwapChain
+        PresentMode = (VkPresentModeKHR)~0;             // Ensure we get an error if user doesn't set this.
+
+        // Parameters to create RenderPass
+        AttachmentDesc.format = VK_FORMAT_UNDEFINED;    // Will automatically use wd->SurfaceFormat.format.
+        AttachmentDesc.samples = VK_SAMPLE_COUNT_1_BIT;
+        AttachmentDesc.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
+        AttachmentDesc.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
+        AttachmentDesc.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+        AttachmentDesc.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+        AttachmentDesc.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+        AttachmentDesc.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
     }
 };
 
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_wgpu.cpp

@@ -1,6 +1,6 @@
 // dear imgui: Renderer for WebGPU
-// This needs to be used along with a Platform Binding (e.g. GLFW)
-// (Please note that WebGPU is currently experimental, will not run on non-beta browsers, and may break.)
+// This needs to be used along with a Platform Binding (e.g. GLFW, SDL2, SDL3)
+// (Please note that WebGPU is a recent API, may not be supported by all browser, and its ecosystem is generally a mess)
 
 // Implemented features:
 //  [X] Renderer: User texture binding. Use 'WGPUTextureView' as ImTextureID. Read the FAQ about ImTextureID/ImTextureRef!
@@ -8,6 +8,8 @@
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 //  [X] Renderer: Texture updates support for dynamic font system (ImGuiBackendFlags_RendererHasTextures).
 
+// Read imgui_impl_wgpu.h about how to use the IMGUI_IMPL_WEBGPU_BACKEND_WGPU or IMGUI_IMPL_WEBGPU_BACKEND_DAWN flags.
+
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
 // Learn about Dear ImGui:
@@ -18,6 +20,9 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-03-25: Added support for WGVK native backend via IMGUI_IMPL_WEBGPU_BACKEND_WGVK define, with SPIRV shaders if WGSL is not available. (#9316, #9246, #9257)
+//  2026-03-09: Removed support for Emscripten < 4.0.10. (#9281)
+//  2025-10-16: Update to compile with Dawn and Emscripten's 4.0.10+ '--use-port=emdawnwebgpu' ports. (#8381, #8898)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-12: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. (#8465)
 //  2025-02-26: Recreate image bind groups during render. (#8426, #8046, #7765, #8027) + Update for latest webgpu-native changes.
@@ -46,24 +51,20 @@
 
 #include "imgui.h"
 
-// When targeting native platforms (i.e. NOT Emscripten), one of IMGUI_IMPL_WEBGPU_BACKEND_DAWN
-// or IMGUI_IMPL_WEBGPU_BACKEND_WGPU must be provided. See imgui_impl_wgpu.h for more details.
-#ifndef __EMSCRIPTEN__
-    #if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) == defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
-    #error exactly one of IMGUI_IMPL_WEBGPU_BACKEND_DAWN or IMGUI_IMPL_WEBGPU_BACKEND_WGPU must be defined!
-    #endif
-#else
-    #if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
-    #error neither IMGUI_IMPL_WEBGPU_BACKEND_DAWN nor IMGUI_IMPL_WEBGPU_BACKEND_WGPU may be defined if targeting emscripten!
-    #endif
-#endif
-
 #ifndef IMGUI_DISABLE
 #include "imgui_impl_wgpu.h"
 #include <limits.h>
-#include <webgpu/webgpu.h>
+#include <stdio.h>
 
-#ifdef IMGUI_IMPL_WEBGPU_BACKEND_DAWN
+// One of IMGUI_IMPL_WEBGPU_BACKEND_DAWN or IMGUI_IMPL_WEBGPU_BACKEND_WGPU must be provided. See imgui_impl_wgpu.h for more details.
+#if !defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) && !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU) && !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
+#error Exactly one of IMGUI_IMPL_WEBGPU_BACKEND_DAWN, IMGUI_IMPL_WEBGPU_BACKEND_WGPU or IMGUI_IMPL_WEBGPU_BACKEND_WGVK must be defined!
+#endif
+#if defined(__EMSCRIPTEN__) && defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
+#error Emscripten <4.0.10 with '-sUSE_WEBGPU=1' is not supported anymore.
+#endif
+
+#if defined IMGUI_IMPL_WEBGPU_BACKEND_DAWN || defined IMGUI_IMPL_WEBGPU_BACKEND_WGVK
 // Dawn renamed WGPUProgrammableStageDescriptor to WGPUComputeState (see: https://github.com/webgpu-native/webgpu-headers/pull/413)
 // Using type alias until WGPU adopts the same naming convention (#8369)
 using WGPUProgrammableStageDescriptor = WGPUComputeState;
@@ -185,6 +186,60 @@ fn main(in: VertexOutput) -> @location(0) vec4<f32> {
 }
 )";
 
+// Same shader as __shader_vert_wgsl[] but compiled as SPIRV.
+// 'wgslc -o vert.spv vert.wgsl' + 'binary_to_compressed_c -u8 -nocompress vert.spv'
+static const unsigned char __shader_vert_spirv[1996] =
+{
+    3,2,35,7,0,3,1,0,1,0,23,0,90,0,0,0,0,0,0,0,17,0,2,0,1,0,0,0,14,0,3,0,0,0,0,0,1,0,0,0,15,0,12,0,0,0,0,0,78,0,0,0,109,97,105,110,0,0,0,0,8,0,0,0,12,0,0,0,13,0,0,0,16,0,0,0,18,0,0,0,19,
+    0,0,0,21,0,0,0,71,0,4,0,4,0,0,0,6,0,0,0,16,0,0,0,72,0,5,0,3,0,0,0,0,0,0,0,35,0,0,0,0,0,0,0,71,0,3,0,3,0,0,0,2,0,0,0,71,0,4,0,1,0,0,0,34,0,0,0,0,0,0,0,71,0,4,0,1,0,0,0,33,0,0,0,0,0,
+    0,0,71,0,3,0,1,0,0,0,24,0,0,0,71,0,4,0,8,0,0,0,30,0,0,0,0,0,0,0,71,0,4,0,12,0,0,0,30,0,0,0,1,0,0,0,71,0,4,0,13,0,0,0,30,0,0,0,2,0,0,0,71,0,4,0,16,0,0,0,11,0,0,0,0,0,0,0,71,0,4,0,18,
+    0,0,0,30,0,0,0,0,0,0,0,71,0,4,0,19,0,0,0,30,0,0,0,1,0,0,0,71,0,4,0,21,0,0,0,11,0,0,0,1,0,0,0,21,0,4,0,6,0,0,0,32,0,0,0,0,0,0,0,23,0,4,0,5,0,0,0,6,0,0,0,4,0,0,0,43,0,4,0,6,0,0,0,7,0,
+    0,0,5,0,0,0,28,0,4,0,4,0,0,0,5,0,0,0,7,0,0,0,30,0,3,0,3,0,0,0,4,0,0,0,32,0,4,0,2,0,0,0,2,0,0,0,3,0,0,0,59,0,4,0,2,0,0,0,1,0,0,0,2,0,0,0,22,0,3,0,11,0,0,0,32,0,0,0,23,0,4,0,10,0,0,0,
+    11,0,0,0,2,0,0,0,32,0,4,0,9,0,0,0,1,0,0,0,10,0,0,0,59,0,4,0,9,0,0,0,8,0,0,0,1,0,0,0,59,0,4,0,9,0,0,0,12,0,0,0,1,0,0,0,23,0,4,0,15,0,0,0,11,0,0,0,4,0,0,0,32,0,4,0,14,0,0,0,1,0,0,0,15,
+    0,0,0,59,0,4,0,14,0,0,0,13,0,0,0,1,0,0,0,32,0,4,0,17,0,0,0,3,0,0,0,15,0,0,0,59,0,4,0,17,0,0,0,16,0,0,0,3,0,0,0,59,0,4,0,17,0,0,0,18,0,0,0,3,0,0,0,32,0,4,0,20,0,0,0,3,0,0,0,10,0,0,0,
+    59,0,4,0,20,0,0,0,19,0,0,0,3,0,0,0,32,0,4,0,22,0,0,0,3,0,0,0,11,0,0,0,59,0,4,0,22,0,0,0,21,0,0,0,3,0,0,0,30,0,5,0,24,0,0,0,15,0,0,0,15,0,0,0,10,0,0,0,30,0,5,0,25,0,0,0,10,0,0,0,10,
+    0,0,0,15,0,0,0,33,0,4,0,27,0,0,0,24,0,0,0,25,0,0,0,32,0,4,0,30,0,0,0,7,0,0,0,24,0,0,0,46,0,3,0,24,0,0,0,31,0,0,0,32,0,4,0,33,0,0,0,7,0,0,0,15,0,0,0,43,0,4,0,6,0,0,0,34,0,0,0,0,0,0,
+    0,24,0,4,0,36,0,0,0,15,0,0,0,4,0,0,0,43,0,4,0,11,0,0,0,40,0,0,0,0,0,0,0,43,0,4,0,11,0,0,0,41,0,0,0,0,0,128,63,43,0,4,0,6,0,0,0,44,0,0,0,1,0,0,0,32,0,4,0,47,0,0,0,7,0,0,0,10,0,0,0,43,
+    0,4,0,6,0,0,0,48,0,0,0,2,0,0,0,33,0,4,0,52,0,0,0,36,0,0,0,6,0,0,0,43,0,4,0,6,0,0,0,55,0,0,0,16,0,0,0,32,0,4,0,57,0,0,0,2,0,0,0,5,0,0,0,43,0,4,0,6,0,0,0,66,0,0,0,32,0,0,0,43,0,4,0,6,
+    0,0,0,72,0,0,0,48,0,0,0,19,0,2,0,79,0,0,0,33,0,3,0,80,0,0,0,79,0,0,0,54,0,5,0,24,0,0,0,23,0,0,0,0,0,0,0,27,0,0,0,55,0,3,0,25,0,0,0,26,0,0,0,248,0,2,0,28,0,0,0,59,0,5,0,30,0,0,0,29,
+    0,0,0,7,0,0,0,31,0,0,0,65,0,5,0,33,0,0,0,32,0,0,0,29,0,0,0,34,0,0,0,57,0,5,0,36,0,0,0,35,0,0,0,37,0,0,0,34,0,0,0,81,0,5,0,10,0,0,0,38,0,0,0,26,0,0,0,0,0,0,0,80,0,6,0,15,0,0,0,39,0,
+    0,0,38,0,0,0,40,0,0,0,41,0,0,0,145,0,5,0,15,0,0,0,42,0,0,0,35,0,0,0,39,0,0,0,62,0,4,0,32,0,0,0,42,0,0,0,0,0,0,0,65,0,5,0,33,0,0,0,43,0,0,0,29,0,0,0,44,0,0,0,81,0,5,0,15,0,0,0,45,0,
+    0,0,26,0,0,0,2,0,0,0,62,0,4,0,43,0,0,0,45,0,0,0,0,0,0,0,65,0,5,0,47,0,0,0,46,0,0,0,29,0,0,0,48,0,0,0,81,0,5,0,10,0,0,0,49,0,0,0,26,0,0,0,1,0,0,0,62,0,4,0,46,0,0,0,49,0,0,0,0,0,0,0,
+    61,0,5,0,24,0,0,0,50,0,0,0,29,0,0,0,0,0,0,0,254,0,2,0,50,0,0,0,56,0,1,0,54,0,5,0,36,0,0,0,37,0,0,0,0,0,0,0,52,0,0,0,55,0,3,0,6,0,0,0,51,0,0,0,248,0,2,0,53,0,0,0,134,0,5,0,6,0,0,0,54,
+    0,0,0,51,0,0,0,55,0,0,0,65,0,6,0,57,0,0,0,56,0,0,0,1,0,0,0,34,0,0,0,54,0,0,0,61,0,5,0,5,0,0,0,58,0,0,0,56,0,0,0,0,0,0,0,124,0,4,0,15,0,0,0,59,0,0,0,58,0,0,0,128,0,5,0,6,0,0,0,60,0,
+    0,0,55,0,0,0,51,0,0,0,134,0,5,0,6,0,0,0,61,0,0,0,60,0,0,0,55,0,0,0,65,0,6,0,57,0,0,0,62,0,0,0,1,0,0,0,34,0,0,0,61,0,0,0,61,0,5,0,5,0,0,0,63,0,0,0,62,0,0,0,0,0,0,0,124,0,4,0,15,0,0,
+    0,64,0,0,0,63,0,0,0,128,0,5,0,6,0,0,0,65,0,0,0,66,0,0,0,51,0,0,0,134,0,5,0,6,0,0,0,67,0,0,0,65,0,0,0,55,0,0,0,65,0,6,0,57,0,0,0,68,0,0,0,1,0,0,0,34,0,0,0,67,0,0,0,61,0,5,0,5,0,0,0,
+    69,0,0,0,68,0,0,0,0,0,0,0,124,0,4,0,15,0,0,0,70,0,0,0,69,0,0,0,128,0,5,0,6,0,0,0,71,0,0,0,72,0,0,0,51,0,0,0,134,0,5,0,6,0,0,0,73,0,0,0,71,0,0,0,55,0,0,0,65,0,6,0,57,0,0,0,74,0,0,0,
+    1,0,0,0,34,0,0,0,73,0,0,0,61,0,5,0,5,0,0,0,75,0,0,0,74,0,0,0,0,0,0,0,124,0,4,0,15,0,0,0,76,0,0,0,75,0,0,0,80,0,7,0,36,0,0,0,77,0,0,0,59,0,0,0,64,0,0,0,70,0,0,0,76,0,0,0,254,0,2,0,77,
+    0,0,0,56,0,1,0,54,0,5,0,79,0,0,0,78,0,0,0,0,0,0,0,80,0,0,0,248,0,2,0,81,0,0,0,61,0,5,0,10,0,0,0,82,0,0,0,8,0,0,0,0,0,0,0,61,0,5,0,10,0,0,0,83,0,0,0,12,0,0,0,0,0,0,0,61,0,5,0,15,0,0,
+    0,84,0,0,0,13,0,0,0,0,0,0,0,80,0,6,0,25,0,0,0,85,0,0,0,82,0,0,0,83,0,0,0,84,0,0,0,57,0,5,0,24,0,0,0,86,0,0,0,23,0,0,0,85,0,0,0,81,0,5,0,15,0,0,0,87,0,0,0,86,0,0,0,0,0,0,0,62,0,4,0,
+    16,0,0,0,87,0,0,0,0,0,0,0,81,0,5,0,15,0,0,0,88,0,0,0,86,0,0,0,1,0,0,0,62,0,4,0,18,0,0,0,88,0,0,0,0,0,0,0,81,0,5,0,10,0,0,0,89,0,0,0,86,0,0,0,2,0,0,0,62,0,4,0,19,0,0,0,89,0,0,0,0,0,
+    0,0,62,0,4,0,21,0,0,0,41,0,0,0,0,0,0,0,253,0,1,0,56,0,1,0,
+};
+
+// Same shader as __shader_frag_wgsl[] but compiled as SPIRV.
+// 'wgslc -o frag.spv frag.wgsl' + 'binary_to_compressed_c -u8 -nocompress frag.spv'
+static const unsigned char __shader_frag_spirv[1392] =
+{
+    3,2,35,7,0,3,1,0,1,0,23,0,60,0,0,0,0,0,0,0,17,0,2,0,1,0,0,0,11,0,6,0,48,0,0,0,71,76,83,76,46,115,116,100,46,52,53,48,0,0,0,0,14,0,3,0,0,0,0,0,1,0,0,0,15,0,9,0,4,0,0,0,51,0,0,0,109,
+    97,105,110,0,0,0,0,15,0,0,0,18,0,0,0,19,0,0,0,22,0,0,0,16,0,3,0,51,0,0,0,7,0,0,0,71,0,4,0,4,0,0,0,6,0,0,0,16,0,0,0,72,0,5,0,3,0,0,0,0,0,0,0,35,0,0,0,0,0,0,0,71,0,3,0,3,0,0,0,2,0,0,
+    0,71,0,4,0,1,0,0,0,34,0,0,0,0,0,0,0,71,0,4,0,1,0,0,0,33,0,0,0,0,0,0,0,71,0,3,0,1,0,0,0,24,0,0,0,71,0,4,0,8,0,0,0,34,0,0,0,0,0,0,0,71,0,4,0,8,0,0,0,33,0,0,0,1,0,0,0,71,0,4,0,11,0,0,
+    0,34,0,0,0,1,0,0,0,71,0,4,0,11,0,0,0,33,0,0,0,0,0,0,0,71,0,4,0,15,0,0,0,11,0,0,0,15,0,0,0,71,0,4,0,18,0,0,0,30,0,0,0,0,0,0,0,71,0,4,0,19,0,0,0,30,0,0,0,1,0,0,0,71,0,4,0,22,0,0,0,30,
+    0,0,0,0,0,0,0,21,0,4,0,6,0,0,0,32,0,0,0,0,0,0,0,23,0,4,0,5,0,0,0,6,0,0,0,4,0,0,0,43,0,4,0,6,0,0,0,7,0,0,0,5,0,0,0,28,0,4,0,4,0,0,0,5,0,0,0,7,0,0,0,30,0,3,0,3,0,0,0,4,0,0,0,32,0,4,0,
+    2,0,0,0,2,0,0,0,3,0,0,0,59,0,4,0,2,0,0,0,1,0,0,0,2,0,0,0,26,0,2,0,10,0,0,0,32,0,4,0,9,0,0,0,0,0,0,0,10,0,0,0,59,0,4,0,9,0,0,0,8,0,0,0,0,0,0,0,22,0,3,0,14,0,0,0,32,0,0,0,25,0,9,0,13,
+    0,0,0,14,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,32,0,4,0,12,0,0,0,0,0,0,0,13,0,0,0,59,0,4,0,12,0,0,0,11,0,0,0,0,0,0,0,23,0,4,0,17,0,0,0,14,0,0,0,4,0,0,0,32,0,4,0,16,
+    0,0,0,1,0,0,0,17,0,0,0,59,0,4,0,16,0,0,0,15,0,0,0,1,0,0,0,59,0,4,0,16,0,0,0,18,0,0,0,1,0,0,0,23,0,4,0,21,0,0,0,14,0,0,0,2,0,0,0,32,0,4,0,20,0,0,0,1,0,0,0,21,0,0,0,59,0,4,0,20,0,0,0,
+    19,0,0,0,1,0,0,0,32,0,4,0,23,0,0,0,3,0,0,0,17,0,0,0,59,0,4,0,23,0,0,0,22,0,0,0,3,0,0,0,30,0,5,0,25,0,0,0,17,0,0,0,17,0,0,0,21,0,0,0,33,0,4,0,27,0,0,0,17,0,0,0,25,0,0,0,27,0,3,0,34,
+    0,0,0,13,0,0,0,23,0,4,0,38,0,0,0,14,0,0,0,3,0,0,0,32,0,4,0,40,0,0,0,2,0,0,0,5,0,0,0,43,0,4,0,6,0,0,0,41,0,0,0,0,0,0,0,43,0,4,0,6,0,0,0,42,0,0,0,4,0,0,0,19,0,2,0,52,0,0,0,33,0,3,0,53,
+    0,0,0,52,0,0,0,54,0,5,0,17,0,0,0,24,0,0,0,0,0,0,0,27,0,0,0,55,0,3,0,25,0,0,0,26,0,0,0,248,0,2,0,28,0,0,0,81,0,5,0,17,0,0,0,29,0,0,0,26,0,0,0,1,0,0,0,61,0,5,0,13,0,0,0,30,0,0,0,11,0,
+    0,0,0,0,0,0,61,0,5,0,10,0,0,0,31,0,0,0,8,0,0,0,0,0,0,0,81,0,5,0,21,0,0,0,32,0,0,0,26,0,0,0,2,0,0,0,86,0,5,0,34,0,0,0,33,0,0,0,30,0,0,0,31,0,0,0,87,0,6,0,17,0,0,0,35,0,0,0,33,0,0,0,
+    32,0,0,0,0,0,0,0,133,0,5,0,17,0,0,0,36,0,0,0,29,0,0,0,35,0,0,0,79,0,8,0,38,0,0,0,37,0,0,0,36,0,0,0,36,0,0,0,0,0,0,0,1,0,0,0,2,0,0,0,65,0,6,0,40,0,0,0,39,0,0,0,1,0,0,0,41,0,0,0,42,0,
+    0,0,61,0,5,0,5,0,0,0,43,0,0,0,39,0,0,0,0,0,0,0,81,0,5,0,6,0,0,0,44,0,0,0,43,0,0,0,0,0,0,0,124,0,4,0,14,0,0,0,45,0,0,0,44,0,0,0,80,0,6,0,38,0,0,0,46,0,0,0,45,0,0,0,45,0,0,0,45,0,0,0,
+    12,0,7,0,38,0,0,0,47,0,0,0,48,0,0,0,26,0,0,0,37,0,0,0,46,0,0,0,81,0,5,0,14,0,0,0,49,0,0,0,36,0,0,0,3,0,0,0,80,0,5,0,17,0,0,0,50,0,0,0,47,0,0,0,49,0,0,0,254,0,2,0,50,0,0,0,56,0,1,0,
+    54,0,5,0,52,0,0,0,51,0,0,0,0,0,0,0,53,0,0,0,248,0,2,0,54,0,0,0,61,0,5,0,17,0,0,0,55,0,0,0,15,0,0,0,0,0,0,0,61,0,5,0,17,0,0,0,56,0,0,0,18,0,0,0,0,0,0,0,61,0,5,0,21,0,0,0,57,0,0,0,19,
+    0,0,0,0,0,0,0,80,0,6,0,25,0,0,0,58,0,0,0,55,0,0,0,56,0,0,0,57,0,0,0,57,0,5,0,17,0,0,0,59,0,0,0,24,0,0,0,58,0,0,0,62,0,4,0,22,0,0,0,59,0,0,0,0,0,0,0,253,0,1,0,56,0,1,0,
+};
+
 static void SafeRelease(ImDrawIdx*& res)
 {
     if (res)
@@ -255,31 +310,40 @@ static void SafeRelease(FrameResources& res)
     SafeRelease(res.VertexBufferHost);
 }
 
-static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModule(const char* wgsl_source)
+static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModuleWGSL(const char* wgsl_source)
 {
     ImGui_ImplWGPU_Data* bd = ImGui_ImplWGPU_GetBackendData();
 
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
     WGPUShaderSourceWGSL wgsl_desc = {};
     wgsl_desc.chain.sType = WGPUSType_ShaderSourceWGSL;
     wgsl_desc.code = { wgsl_source, WGPU_STRLEN };
-#else
-    WGPUShaderModuleWGSLDescriptor wgsl_desc = {};
-    wgsl_desc.chain.sType = WGPUSType_ShaderModuleWGSLDescriptor;
-    wgsl_desc.code = wgsl_source;
-#endif
 
     WGPUShaderModuleDescriptor desc = {};
-    desc.nextInChain = reinterpret_cast<WGPUChainedStruct*>(&wgsl_desc);
+    desc.nextInChain = (WGPUChainedStruct*)&wgsl_desc;
+
+    WGPUProgrammableStageDescriptor stage_desc = {};
+    stage_desc.module = wgpuDeviceCreateShaderModule(bd->wgpuDevice, &desc);
+
+    stage_desc.entryPoint = { "main", WGPU_STRLEN };
+    return stage_desc;
+}
+
+static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModuleSPIRV(const void* spirv_binary, size_t spirv_length)
+{
+    ImGui_ImplWGPU_Data* bd = ImGui_ImplWGPU_GetBackendData();
+
+    WGPUShaderSourceSPIRV spirv_desc = {};
+    spirv_desc.chain.sType = WGPUSType_ShaderSourceSPIRV;
+    spirv_desc.code = (const uint32_t *)spirv_binary;
+    spirv_desc.codeSize = ((uint32_t)(spirv_length / 4));
+
+    WGPUShaderModuleDescriptor desc = {};
+    desc.nextInChain = (WGPUChainedStruct*)&spirv_desc;
 
     WGPUProgrammableStageDescriptor stage_desc = {};
     stage_desc.module = wgpuDeviceCreateShaderModule(bd->wgpuDevice, &desc);
 
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
     stage_desc.entryPoint = { "main", WGPU_STRLEN };
-#else
-    stage_desc.entryPoint = "main";
-#endif
     return stage_desc;
 }
 
@@ -398,10 +462,7 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
         WGPUBufferDescriptor vb_desc =
         {
             nullptr,
-            "Dear ImGui Vertex buffer",
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
-            WGPU_STRLEN,
-#endif
+            { "Dear ImGui Vertex buffer", WGPU_STRLEN, },
             WGPUBufferUsage_CopyDst | WGPUBufferUsage_Vertex,
             MEMALIGN(fr->VertexBufferSize * sizeof(ImDrawVert), 4),
             false
@@ -425,10 +486,7 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
         WGPUBufferDescriptor ib_desc =
         {
             nullptr,
-            "Dear ImGui Index buffer",
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
-            WGPU_STRLEN,
-#endif
+            { "Dear ImGui Index buffer", WGPU_STRLEN, },
             WGPUBufferUsage_CopyDst | WGPUBufferUsage_Index,
             MEMALIGN(fr->IndexBufferSize * sizeof(ImDrawIdx), 4),
             false
@@ -452,8 +510,8 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
     }
     int64_t vb_write_size = MEMALIGN((char*)vtx_dst - (char*)fr->VertexBufferHost, 4);
     int64_t ib_write_size = MEMALIGN((char*)idx_dst - (char*)fr->IndexBufferHost, 4);
-    wgpuQueueWriteBuffer(bd->defaultQueue, fr->VertexBuffer, 0, fr->VertexBufferHost, vb_write_size);
-    wgpuQueueWriteBuffer(bd->defaultQueue, fr->IndexBuffer,  0, fr->IndexBufferHost,  ib_write_size);
+    wgpuQueueWriteBuffer(bd->defaultQueue, fr->VertexBuffer, 0, fr->VertexBufferHost, (size_t)vb_write_size);
+    wgpuQueueWriteBuffer(bd->defaultQueue, fr->IndexBuffer,  0, fr->IndexBufferHost, (size_t)ib_write_size);
 
     // Setup desired render state
     ImGui_ImplWGPU_SetupRenderState(draw_data, pass_encoder, fr);
@@ -560,11 +618,7 @@ void ImGui_ImplWGPU_UpdateTexture(ImTextureData* tex)
 
         // Create texture
         WGPUTextureDescriptor tex_desc = {};
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
         tex_desc.label = { "Dear ImGui Texture", WGPU_STRLEN };
-#else
-        tex_desc.label = "Dear ImGui Texture";
-#endif
         tex_desc.dimension = WGPUTextureDimension_2D;
         tex_desc.size.width = tex->Width;
         tex_desc.size.height = tex->Height;
@@ -605,20 +659,12 @@ void ImGui_ImplWGPU_UpdateTexture(ImTextureData* tex)
 
         // Update full texture or selected blocks. We only ever write to textures regions which have never been used before!
         // This backend choose to use tex->UpdateRect but you can use tex->Updates[] to upload individual regions.
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
         WGPUTexelCopyTextureInfo dst_view = {};
-#else
-        WGPUImageCopyTexture dst_view = {};
-#endif
         dst_view.texture = backend_tex->Texture;
         dst_view.mipLevel = 0;
         dst_view.origin = { (uint32_t)upload_x, (uint32_t)upload_y, 0 };
         dst_view.aspect = WGPUTextureAspect_All;
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
         WGPUTexelCopyBufferLayout layout = {};
-#else
-        WGPUTextureDataLayout layout = {};
-#endif
         layout.offset = 0;
         layout.bytesPerRow = tex->Width * tex->BytesPerPixel;
         layout.rowsPerImage = upload_h;
@@ -636,10 +682,7 @@ static void ImGui_ImplWGPU_CreateUniformBuffer()
     WGPUBufferDescriptor ub_desc =
     {
         nullptr,
-        "Dear ImGui Uniform buffer",
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
-        WGPU_STRLEN,
-#endif
+        { "Dear ImGui Uniform buffer", WGPU_STRLEN, },
         WGPUBufferUsage_CopyDst | WGPUBufferUsage_Uniform,
         MEMALIGN(sizeof(Uniforms), 16),
         false
@@ -696,14 +739,15 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
     graphics_pipeline_desc.layout = wgpuDeviceCreatePipelineLayout(bd->wgpuDevice, &layout_desc);
 
     // Create the vertex shader
-    WGPUProgrammableStageDescriptor vertex_shader_desc = ImGui_ImplWGPU_CreateShaderModule(__shader_vert_wgsl);
+    WGPUProgrammableStageDescriptor vertex_shader_desc = ImGui_ImplWGPU_CreateShaderModuleWGSL(__shader_vert_wgsl);
+    if (!vertex_shader_desc.module) vertex_shader_desc = ImGui_ImplWGPU_CreateShaderModuleSPIRV(__shader_vert_spirv, sizeof(__shader_vert_spirv));
     graphics_pipeline_desc.vertex.module = vertex_shader_desc.module;
     graphics_pipeline_desc.vertex.entryPoint = vertex_shader_desc.entryPoint;
 
     // Vertex input configuration
     WGPUVertexAttribute attribute_desc[] =
     {
-#ifdef IMGUI_IMPL_WEBGPU_BACKEND_DAWN
+#if defined IMGUI_IMPL_WEBGPU_BACKEND_DAWN || defined IMGUI_IMPL_WEBGPU_BACKEND_WGVK
         { nullptr, WGPUVertexFormat_Float32x2, (uint64_t)offsetof(ImDrawVert, pos), 0 },
         { nullptr, WGPUVertexFormat_Float32x2, (uint64_t)offsetof(ImDrawVert, uv),  1 },
         { nullptr, WGPUVertexFormat_Unorm8x4,  (uint64_t)offsetof(ImDrawVert, col), 2 },
@@ -724,7 +768,8 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
     graphics_pipeline_desc.vertex.buffers = buffer_layouts;
 
     // Create the pixel shader
-    WGPUProgrammableStageDescriptor pixel_shader_desc = ImGui_ImplWGPU_CreateShaderModule(__shader_frag_wgsl);
+    WGPUProgrammableStageDescriptor pixel_shader_desc = ImGui_ImplWGPU_CreateShaderModuleWGSL(__shader_frag_wgsl);
+    if (!pixel_shader_desc.module)  pixel_shader_desc = ImGui_ImplWGPU_CreateShaderModuleSPIRV(__shader_frag_spirv, sizeof(__shader_frag_spirv));
 
     // Create the blending setup
     WGPUBlendState blend_state = {};
@@ -751,11 +796,7 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
     // Create depth-stencil State
     WGPUDepthStencilState depth_stencil_state = {};
     depth_stencil_state.format = bd->depthStencilFormat;
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
     depth_stencil_state.depthWriteEnabled = WGPUOptionalBool_False;
-#else
-    depth_stencil_state.depthWriteEnabled = false;
-#endif
     depth_stencil_state.depthCompare = WGPUCompareFunction_Always;
     depth_stencil_state.stencilFront.compare = WGPUCompareFunction_Always;
     depth_stencil_state.stencilFront.failOp = WGPUStencilOperation_Keep;
@@ -833,14 +874,16 @@ bool ImGui_ImplWGPU_Init(ImGui_ImplWGPU_InitInfo* init_info)
     // Setup backend capabilities flags
     ImGui_ImplWGPU_Data* bd = IM_NEW(ImGui_ImplWGPU_Data)();
     io.BackendRendererUserData = (void*)bd;
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
 #if defined(__EMSCRIPTEN__)
-    io.BackendRendererName = "imgui_impl_webgpu_emscripten";
-#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
-    io.BackendRendererName = "imgui_impl_webgpu_dawn";
-#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
-    io.BackendRendererName = "imgui_impl_webgpu_wgpu";
+    io.BackendRendererName = "imgui_impl_wgpu (Dawn, Emscripten)"; // compiled & linked using EMSCRIPTEN with "--use-port=emdawnwebgpu" flag
 #else
-    io.BackendRendererName = "imgui_impl_webgpu";
+    io.BackendRendererName = "imgui_impl_wgpu (Dawn, Native)";
+#endif
+#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
+    io.BackendRendererName = "imgui_impl_wgpu (WGPU, Native)";
+#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
+    io.BackendRendererName = "imgui_impl_wgpu (WGVK, Native)";
 #endif
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
     io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
@@ -905,6 +948,176 @@ void ImGui_ImplWGPU_NewFrame()
             IM_ASSERT(0 && "ImGui_ImplWGPU_CreateDeviceObjects() failed!");
 }
 
+//-------------------------------------------------------------------------
+// Internal Helpers
+// Those are currently used by our example applications.
+//-------------------------------------------------------------------------
+
+bool ImGui_ImplWGPU_IsSurfaceStatusError(WGPUSurfaceGetCurrentTextureStatus status)
+{
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
+    return (status == WGPUSurfaceGetCurrentTextureStatus_Error);
+#else
+    return (status == WGPUSurfaceGetCurrentTextureStatus_OutOfMemory || status == WGPUSurfaceGetCurrentTextureStatus_DeviceLost);
+#endif
+}
+
+bool ImGui_ImplWGPU_IsSurfaceStatusSubOptimal(WGPUSurfaceGetCurrentTextureStatus status)
+{
+#if defined(__EMSCRIPTEN__) && !defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+    return (status == WGPUSurfaceGetCurrentTextureStatus_Timeout || status == WGPUSurfaceGetCurrentTextureStatus_Outdated || status == WGPUSurfaceGetCurrentTextureStatus_Lost);
+#else
+    return (status == WGPUSurfaceGetCurrentTextureStatus_Timeout || status == WGPUSurfaceGetCurrentTextureStatus_Outdated || status == WGPUSurfaceGetCurrentTextureStatus_Lost || status == WGPUSurfaceGetCurrentTextureStatus_SuccessSuboptimal);
+#endif
+}
+
+// Helpers to obtain a string
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
+const char* ImGui_ImplWGPU_GetErrorTypeName(WGPUErrorType type)
+{
+    switch (type)
+    {
+    case WGPUErrorType_Validation: return "Validation";
+    case WGPUErrorType_OutOfMemory: return "OutOfMemory";
+    case WGPUErrorType_Unknown: return "Unknown";
+    case WGPUErrorType_Internal: return "Internal";
+    default: return "Unknown";
+    }
+}
+const char* ImGui_ImplWGPU_GetDeviceLostReasonName(WGPUDeviceLostReason type)
+{
+    switch (type)
+    {
+    case WGPUDeviceLostReason_Unknown: return "Unknown";
+    case WGPUDeviceLostReason_Destroyed: return "Destroyed";
+    case WGPUDeviceLostReason_CallbackCancelled: return "CallbackCancelled";
+    case WGPUDeviceLostReason_FailedCreation: return "FailedCreation";
+    default: return "Unknown";
+    }
+}
+#elif !defined(__EMSCRIPTEN__)
+const char* ImGui_ImplWGPU_GetLogLevelName(WGPULogLevel level)
+{
+    switch (level)
+    {
+    case WGPULogLevel_Error: return "Error"; 
+    case WGPULogLevel_Warn: return "Warn";
+    case WGPULogLevel_Info: return "Info";
+    case WGPULogLevel_Debug: return "Debug";
+    case WGPULogLevel_Trace: return "Trace";
+    default: return "Unknown";
+    }
+}
+#endif
+
+const char* ImGui_ImplWGPU_GetBackendTypeName(WGPUBackendType type)
+{
+    switch (type)
+    {
+    case WGPUBackendType_WebGPU: return "WebGPU";
+    case WGPUBackendType_D3D11: return "D3D11";
+    case WGPUBackendType_D3D12: return "D3D12";
+    case WGPUBackendType_Metal: return "Metal";
+    case WGPUBackendType_Vulkan: return "Vulkan";
+    case WGPUBackendType_OpenGL: return "OpenGL";
+    case WGPUBackendType_OpenGLES: return "OpenGLES";
+    default: return "Unknown";
+    }
+}
+
+const char* ImGui_ImplWGPU_GetAdapterTypeName(WGPUAdapterType type)
+{
+    switch (type)
+    {
+    case WGPUAdapterType_DiscreteGPU: return "DiscreteGPU";
+    case WGPUAdapterType_IntegratedGPU: return "IntegratedGPU";
+    case WGPUAdapterType_CPU: return "CPU";
+    default: return "Unknown";
+    }
+}
+
+void ImGui_ImplWGPU_DebugPrintAdapterInfo(const WGPUAdapter& adapter)
+{
+    WGPUAdapterInfo info = {};
+    wgpuAdapterGetInfo(adapter, &info);
+    printf("description: \"%.*s\"\n", (int)info.description.length, info.description.data);
+    printf("vendor: \"%.*s\", vendorID: %x\n", (int)info.vendor.length, info.vendor.data, info.vendorID);
+    printf("architecture: \"%.*s\"\n", (int) info.architecture.length, info.architecture.data);
+    printf("device: \"%.*s\", deviceID: %x\n", (int)info.device.length, info.device.data, info.deviceID);
+    printf("backendType: \"%s\"\n", ImGui_ImplWGPU_GetBackendTypeName(info.backendType));
+    printf("adapterType: \"%s\"\n", ImGui_ImplWGPU_GetAdapterTypeName(info.adapterType));
+    wgpuAdapterInfoFreeMembers(info);
+}
+
+#ifndef __EMSCRIPTEN__
+
+#if defined(__APPLE__)
+// MacOS specific: is necessary to compile with "-x objective-c++" flags
+// (e.g. using cmake: set_source_files_properties(${IMGUI_DIR}/backends/imgui_impl_wgpu.cpp PROPERTIES COMPILE_FLAGS "-x objective-c++") )
+#include <TargetConditionals.h>
+#if TARGET_OS_OSX
+#include <Cocoa/Cocoa.h>
+#include <QuartzCore/CAMetalLayer.h>
+#endif
+#endif
+
+WGPUSurface ImGui_ImplWGPU_CreateWGPUSurfaceHelper(ImGui_ImplWGPU_CreateSurfaceInfo* info)
+{
+    WGPUSurfaceDescriptor surface_descriptor = {};
+    WGPUSurface surface = {};
+#if defined(__APPLE__) && TARGET_OS_OSX
+    if (strcmp(info->System, "cocoa") == 0)
+    {
+        IM_ASSERT(info->RawWindow != nullptr);
+        NSWindow* ns_window = (NSWindow*)info->RawWindow;
+        id metal_layer = [CAMetalLayer layer];
+        [ns_window.contentView setWantsLayer : YES] ;
+        [ns_window.contentView setLayer : metal_layer] ;
+        WGPUSurfaceSourceMetalLayer surface_src_metal = {};
+        surface_src_metal.chain.sType = WGPUSType_SurfaceSourceMetalLayer;
+        surface_src_metal.layer = metal_layer;
+        surface_descriptor.nextInChain = &surface_src_metal.chain;
+        surface = wgpuInstanceCreateSurface(info->Instance, &surface_descriptor);
+    }
+#elif defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__)
+    if (strcmp(info->System, "wayland") == 0)
+    {
+        IM_ASSERT(info->RawDisplay != nullptr && info->RawSurface != nullptr);
+        WGPUSurfaceSourceWaylandSurface surface_src_wayland = {};
+        surface_src_wayland.chain.sType = WGPUSType_SurfaceSourceWaylandSurface;
+        surface_src_wayland.display = info->RawDisplay;
+        surface_src_wayland.surface = info->RawSurface;
+        surface_descriptor.nextInChain = &surface_src_wayland.chain;
+        surface = wgpuInstanceCreateSurface(info->Instance, &surface_descriptor);
+    }
+    else if (strcmp(info->System, "x11") == 0)
+    {
+        IM_ASSERT(info->RawDisplay != nullptr && info->RawWindow != nullptr);
+        WGPUSurfaceSourceXlibWindow surface_src_xlib = {};
+        surface_src_xlib.chain.sType = WGPUSType_SurfaceSourceXlibWindow;
+        surface_src_xlib.display = info->RawDisplay;
+        surface_src_xlib.window = (uint64_t)info->RawWindow;
+        surface_descriptor.nextInChain = &surface_src_xlib.chain;
+        surface = wgpuInstanceCreateSurface(info->Instance, &surface_descriptor);
+    }
+#elif defined(_WIN32)
+    if (strcmp(info->System, "win32") == 0)
+    {
+        IM_ASSERT(info->RawWindow != nullptr && info->RawInstance != nullptr);
+        WGPUSurfaceSourceWindowsHWND surface_src_hwnd = {};
+        surface_src_hwnd.chain.sType = WGPUSType_SurfaceSourceWindowsHWND;
+        surface_src_hwnd.hinstance = info->RawInstance;
+        surface_src_hwnd.hwnd = info->RawWindow;
+        surface_descriptor.nextInChain = &surface_src_hwnd.chain;
+        surface = wgpuInstanceCreateSurface(info->Instance, &surface_descriptor);
+    }
+#else
+    IM_ASSERT(0 && "Unsupported WebGPU native platform!");
+#endif
+    return surface;
+}
+#endif // #ifndef __EMSCRIPTEN__
+
 //-----------------------------------------------------------------------------
 
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_wgpu.h

@@ -1,13 +1,18 @@
 // dear imgui: Renderer for WebGPU
-// This needs to be used along with a Platform Binding (e.g. GLFW)
-// (Please note that WebGPU is currently experimental, will not run on non-beta browsers, and may break.)
+// This needs to be used along with a Platform Binding (e.g. GLFW, SDL2, SDL3)
+// (Please note that WebGPU is a recent API, may not be supported by all browser, and its ecosystem is generally a mess)
 
-// Important note to dawn and/or wgpu users: when targeting native platforms (i.e. NOT emscripten),
-// one of IMGUI_IMPL_WEBGPU_BACKEND_DAWN or IMGUI_IMPL_WEBGPU_BACKEND_WGPU must be provided.
+// When targeting native platforms:
+//  - One of IMGUI_IMPL_WEBGPU_BACKEND_DAWN, IMGUI_IMPL_WEBGPU_BACKEND_WGPU or IMGUI_IMPL_WEBGPU_BACKEND_WGVK *must* be provided.
+// When targeting Emscripten:
+//  - We now defaults to IMGUI_IMPL_WEBGPU_BACKEND_DAWN and requires Emscripten 4.0.10+, which correspond to using Emscripten '--use-port=emdawnwebgpu'.
+//  - Emscripten < 4.0.10 is not supported anymore (old '-sUSE_WEBGPU=1' option).
+//  - We can still define IMGUI_IMPL_WEBGPU_BACKEND_WGPU to use Emscripten '-s USE_WEBGPU=1' which is marked as obsolete by Emscripten.
 // Add #define to your imconfig.h file, or as a compilation flag in your build system.
-// This requirement will be removed once WebGPU stabilizes and backends converge on a unified interface.
+// This requirement may be removed once WebGPU stabilizes and backends converge on a unified interface.
 //#define IMGUI_IMPL_WEBGPU_BACKEND_DAWN
 //#define IMGUI_IMPL_WEBGPU_BACKEND_WGPU
+//#define IMGUI_IMPL_WEBGPU_BACKEND_WGVK
 
 // Implemented features:
 //  [X] Renderer: User texture binding. Use 'WGPUTextureView' as ImTextureID. Read the FAQ about ImTextureID/ImTextureRef!
@@ -27,7 +32,16 @@
 #include "imgui.h"          // IMGUI_IMPL_API
 #ifndef IMGUI_DISABLE
 
+// Setup Emscripten default if not specified.
+#if defined(__EMSCRIPTEN__) && !defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) && !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
+#include <emscripten/version.h>
+#define IMGUI_IMPL_WEBGPU_BACKEND_DAWN
+#endif
+
 #include <webgpu/webgpu.h>
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU) && !defined(__EMSCRIPTEN__)
+#include <webgpu/wgpu.h>        // WGPULogLevel
+#endif
 
 // Initialization data, for ImGui_ImplWGPU_Init()
 struct ImGui_ImplWGPU_InitInfo
@@ -56,7 +70,7 @@ IMGUI_IMPL_API void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURen
 IMGUI_IMPL_API bool ImGui_ImplWGPU_CreateDeviceObjects();
 IMGUI_IMPL_API void ImGui_ImplWGPU_InvalidateDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void ImGui_ImplWGPU_UpdateTexture(ImTextureData* tex);
 
 // [BETA] Selected render state data shared with callbacks.
@@ -68,4 +82,38 @@ struct ImGui_ImplWGPU_RenderState
     WGPURenderPassEncoder       RenderPassEncoder;
 };
 
+//-------------------------------------------------------------------------
+// Internal Helpers
+// Those are currently used by our example applications.
+//-------------------------------------------------------------------------
+
+// (Optional) Helper to wrap some of the Dawn/WGPU/Emscripten quirks
+bool        ImGui_ImplWGPU_IsSurfaceStatusError(WGPUSurfaceGetCurrentTextureStatus status);
+bool        ImGui_ImplWGPU_IsSurfaceStatusSubOptimal(WGPUSurfaceGetCurrentTextureStatus status);    // Return whether the texture is suboptimal and may need to be recreated.
+
+// (Optional) Helper for debugging/logging
+void        ImGui_ImplWGPU_DebugPrintAdapterInfo(const WGPUAdapter& adapter);
+const char* ImGui_ImplWGPU_GetBackendTypeName(WGPUBackendType type);
+const char* ImGui_ImplWGPU_GetAdapterTypeName(WGPUAdapterType type);
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+const char* ImGui_ImplWGPU_GetDeviceLostReasonName(WGPUDeviceLostReason type);
+const char* ImGui_ImplWGPU_GetErrorTypeName(WGPUErrorType type);
+#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
+const char* ImGui_ImplWGPU_GetLogLevelName(WGPULogLevel level);
+#endif
+
+// (Optional) Helper to create a surface on macOS/Wayland/X11/Window
+#ifndef __EMSCRIPTEN__
+struct ImGui_ImplWGPU_CreateSurfaceInfo
+{
+    WGPUInstance    Instance;
+    const char*     System;      // "cocoa"   | "wayland"   | "x11"     | "win32"
+    void*           RawWindow;   // NSWindow* | 0           | Window    | HWND
+    void*           RawDisplay;  // 0         | wl_display* | Display*  | 0
+    void*           RawSurface;  //           | wl_surface* | 0         | 0
+    void*           RawInstance; // 0         | 0           | 0         | HINSTANCE
+};
+WGPUSurface ImGui_ImplWGPU_CreateWGPUSurfaceHelper(ImGui_ImplWGPU_CreateSurfaceInfo* info);
+#endif // #ifndef __EMSCRIPTEN__
+
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_win32.cpp

@@ -21,6 +21,9 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-01-28: Inputs: Minor optimization not submitting gamepad input if packet number has not changed (reworked from 2025-09-23 attempt). (#9202, #8556)
+//  2025-12-03: Inputs: handle WM_IME_CHAR/WM_IME_COMPOSITION messages to support Unicode inputs on MBCS (non-Unicode) Windows. (#9099, #3653, #5961)
+//  2025-10-19: Inputs: Revert previous change to allow for io.ClearInputKeys() on focus-out not losing gamepad state.
 //  2025-09-23: Inputs: Minor optimization not submitting gamepad input if packet number has not changed.
 //  2025-09-18: Call platform_io.ClearPlatformHandlers() on shutdown.
 //  2025-04-30: Inputs: Fixed an issue where externally losing mouse capture (due to e.g. focus loss) would fail to claim it again the next subsequent click. (#8594)
@@ -180,7 +183,7 @@ static bool ImGui_ImplWin32_InitEx(void* hwnd, bool platform_has_own_dc)
     bd->LastMouseCursor = ImGuiMouseCursor_COUNT;
     ImGui_ImplWin32_UpdateKeyboardCodePage(io);
 
-    // Set platform dependent data in viewport
+    // Our mouse update function expect PlatformHandle to be filled for the main viewport
     ImGuiViewport* main_viewport = ImGui::GetMainViewport();
     main_viewport->PlatformHandle = main_viewport->PlatformHandleRaw = (void*)bd->hWnd;
     IM_UNUSED(platform_has_own_dc); // Used in 'docking' branch
@@ -196,7 +199,7 @@ static bool ImGui_ImplWin32_InitEx(void* hwnd, bool platform_has_own_dc)
         "xinput1_2.dll",   // DirectX SDK
         "xinput1_1.dll"    // DirectX SDK
     };
-    for (int n = 0; n < IM_ARRAYSIZE(xinput_dll_names); n++)
+    for (int n = 0; n < IM_COUNTOF(xinput_dll_names); n++)
         if (HMODULE dll = ::LoadLibraryA(xinput_dll_names[n]))
         {
             bd->XInputDLL = dll;
@@ -652,8 +655,8 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandlerEx(HWND hwnd, UINT msg, WPA
             bd->MouseTrackedArea = area;
         }
         POINT mouse_pos = { (LONG)GET_X_LPARAM(lParam), (LONG)GET_Y_LPARAM(lParam) };
-        if (msg == WM_NCMOUSEMOVE && ::ScreenToClient(hwnd, &mouse_pos) == FALSE) // WM_NCMOUSEMOVE are provided in absolute coordinates.
-            return 0;
+        if (msg == WM_NCMOUSEMOVE) // WM_NCMOUSEMOVE are absolute coordinates.
+             ::ScreenToClient(hwnd, &mouse_pos);
         io.AddMouseSourceEvent(mouse_source);
         io.AddMousePosEvent((float)mouse_pos.x, (float)mouse_pos.y);
         return 0;
@@ -773,6 +776,9 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandlerEx(HWND hwnd, UINT msg, WPA
     case WM_SETFOCUS:
     case WM_KILLFOCUS:
         io.AddFocusEvent(msg == WM_SETFOCUS);
+#ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
+        bd->XInputPacketNumber = 0; // FIXME: Technically, calling io.ClearInputKeys() directly would require this as well.
+#endif
         return 0;
     case WM_INPUTLANGCHANGE:
         ImGui_ImplWin32_UpdateKeyboardCodePage(io);
@@ -787,10 +793,28 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandlerEx(HWND hwnd, UINT msg, WPA
         else
         {
             wchar_t wch = 0;
-            ::MultiByteToWideChar(bd->KeyboardCodePage, MB_PRECOMPOSED, (char*)&wParam, 1, &wch, 1);
+            ::MultiByteToWideChar(bd->KeyboardCodePage, MB_PRECOMPOSED, (char*)&wParam, 2, &wch, 1);
             io.AddInputCharacter(wch);
         }
         return 0;
+    case WM_IME_COMPOSITION:
+    {
+        // Handling WM_IME_COMPOSITION ensure that WM_IME_CHAR value is correct even for MBCS apps.
+        // (see #9099, #3653 and https://stackoverflow.com/questions/77450354 topics) 
+        LRESULT result = ::DefWindowProcW(hwnd, msg, wParam, lParam);
+        return (lParam & GCS_RESULTSTR) ? 1 : result;
+    }
+    case WM_IME_CHAR:
+        if (::IsWindowUnicode(hwnd) == FALSE)
+        {
+            if (::IsDBCSLeadByte(HIBYTE(wParam)))
+                wParam = (WPARAM)MAKEWORD(HIBYTE(wParam), LOBYTE(wParam));
+            wchar_t wch = 0;
+            ::MultiByteToWideChar(bd->KeyboardCodePage, MB_PRECOMPOSED, (char*)&wParam, 2, &wch, 1);
+            io.AddInputCharacterUTF16(wch);
+            return 1;
+        }
+        return 0;
     case WM_SETCURSOR:
         // This is required to restore cursor when transitioning from e.g resize borders to client area.
         if (LOWORD(lParam) == HTCLIENT && ImGui_ImplWin32_UpdateMouseCursor(io, bd->LastMouseCursor))
@@ -814,7 +838,7 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandlerEx(HWND hwnd, UINT msg, WPA
 // - Your own app may already do this via a manifest or explicit calls. This is mostly useful for our examples/ apps.
 // - In theory we could call simple functions from Windows SDK such as SetProcessDPIAware(), SetProcessDpiAwareness(), etc.
 //   but most of the functions provided by Microsoft require Windows 8.1/10+ SDK at compile time and Windows 8/10+ at runtime,
-//   neither we want to require the user to have. So we dynamically select and load those functions to avoid dependencies.
+//   neither of which we want to require the user to have. So we dynamically select and load those functions to avoid dependencies.
 //---------------------------------------------------------------------------------------------------------
 // This is the scheme successfully used by GLFW (from which we borrowed some of the code) and other apps aiming to be highly portable.
 // ImGui_ImplWin32_EnableDpiAwareness() is just a helper called by main.cpp, we don't call it automatically.

backends/imgui_impl_win32.h

@@ -26,7 +26,7 @@ IMGUI_IMPL_API bool     ImGui_ImplWin32_InitForOpenGL(void* hwnd);
 IMGUI_IMPL_API void     ImGui_ImplWin32_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplWin32_NewFrame();
 
-// Win32 message handler your application need to call.
+// Win32 message handler your application needs to call.
 // - Intentionally commented out in a '#if 0' block to avoid dragging dependencies on <windows.h> from this helper.
 // - You should COPY the line below into your .cpp code to forward declare the function and then you can call it.
 // - Call from your application's message handler. Keep calling your message handler unless this function returns TRUE.
@@ -40,7 +40,7 @@ extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg
 // - Your own app may already do this via a manifest or explicit calls. This is mostly useful for our examples/ apps.
 // - In theory we could call simple functions from Windows SDK such as SetProcessDPIAware(), SetProcessDpiAwareness(), etc.
 //   but most of the functions provided by Microsoft require Windows 8.1/10+ SDK at compile time and Windows 8/10+ at runtime,
-//   neither we want to require the user to have. So we dynamically select and load those functions to avoid dependencies.
+//   neither of which we want to require the user to have. So we dynamically select and load those functions to avoid dependencies.
 IMGUI_IMPL_API void     ImGui_ImplWin32_EnableDpiAwareness();
 IMGUI_IMPL_API float    ImGui_ImplWin32_GetDpiScaleForHwnd(void* hwnd);       // HWND hwnd
 IMGUI_IMPL_API float    ImGui_ImplWin32_GetDpiScaleForMonitor(void* monitor); // HMONITOR monitor

backends/sdlgpu3/build_instructions.txt

@@ -34,6 +34,8 @@ Instructions to rebuild imgui_impl_sdlgpu3_shaders.h
     xcrun -sdk macosx metallib -o vertex.metallib -c vertex.ir
     xcrun -sdk macosx metallib -o fragment.metallib -c fragment.ir
 
+    note: use .metal outputs for updating msl_vertex / msl_fragment variables, and use .metallib outputs for metallib_vertex / metallib_fragment variables
+
     Proceed to step 4
 
 

docs/BACKENDS.md

@@ -100,6 +100,7 @@ List of Renderer Backends:
 List of high-level Frameworks Backends (combining Platform + Renderer):
 
     imgui_impl_allegro5.cpp
+    imgui_impl_null.cpp
 
 Emscripten is also supported!
 The SDL2+GL, SDL3+GL, GLFW+GL and GLFW+WebGPU examples are all ready to build and run with Emscripten.
@@ -336,7 +337,7 @@ void MyImGuiBackend_UpdateTexture(ImTextureData* tex)
     {
         // Create texture based on tex->Width, tex->Height.
         // - Most backends only support tex->Format == ImTextureFormat_RGBA32.
-        // - Backends for particularly memory constrainted platforms may support tex->Format == ImTextureFormat_Alpha8.
+        // - Backends for particularly memory constrained platforms may support tex->Format == ImTextureFormat_Alpha8.
 
         // Upload all texture pixels
         // - Read from our CPU-side copy of the texture and copy to your graphics API.

docs/CHANGELOG.txt

@@ -35,6 +35,558 @@ HOW TO UPDATE?
   and API updates have been a little more frequent lately. They are documented below and in imgui.cpp and should not affect all users.
 - Please report any issue!
 
+-----------------------------------------------------------------------
+ VERSION 1.92.7 (Released 2026-04-02)
+-----------------------------------------------------------------------
+
+Decorated log and release notes: https://github.com/ocornut/imgui/releases/tag/v1.92.7
+
+Breaking Changes:
+
+ - Separator: fixed a legacy quirk where `Separator()` was submitting a zero-height
+   item for layout purpose, even though it draws a 1-pixel separator.
+   The fix could affect code e.g. computing height from multiple widgets in order to
+   allocate vertical space for a footer or multi-line status bar. (#2657, #9263)
+   The "Console" example had such a bug:
+      float footer_height = style.ItemSpacing.y + ImGui::GetFrameHeightWithSpacing();
+      BeginChild("ScrollingRegion", { 0, -footer_height });
+   Should be:
+      float footer_height = style.ItemSpacing.y + style.SeparatorSize + ImGui::GetFrameHeightWithSpacing();
+      BeginChild("ScrollingRegion", { 0, -footer_height });
+   When such idiom was used and assuming zero-height Separator, it is likely that
+   in 1.92.7 the resulting window will have unexpected 1 pixel scrolling range.
+ - Multi-Select: renamed `ImGuiMultiSelectFlags_SelectOnClick` to `ImGuiMultiSelectFlags_SelectOnAuto`.
+   Kept inline redirection enum (will obsolete).
+ - Combo(), ListBox(): commented out legacy signatures which were obsoleted in 1.90
+   (Nov 2023), when the getter callback type was changed from:
+      bool (*getter)(void* user_data, int idx, const char** out_text)
+   To:
+      const char* (*getter)(void* user_data, int idx)
+
+Other Changes:
+
+- TreeNode:
+   - Moved `TreeNodeGetOpen()` helper to public API. I was hesitant to make this public
+     because I intend to provide a more generic and feature-full version, but in the meanwhile
+     this will do. (#3823, #9251, #7553, #6754, #5423, #2958, #2079, #1947, #1131, #722)
+   - In 'Demo->Property Editor' demonstrate a way to perform tree clipping by fast-forwarding
+     through non-visible chunks. (#3823, #9251, #6990, #6042)
+     Using SetNextItemStorageID() + TreeNodeGetOpen() makes this notably easier than
+     it was prior to 1.91.
+- InputText:
+  - Shift+Enter in multi-line editor always adds a new line, regardless of
+    `ImGuiInputTextFlags_CtrlEnterForNewLine` being set or not. (#9239)
+  - Reworked `io.ConfigInputTextEnterKeepActive` mode so that pressing Enter will
+    deactivate/reactivate the item in order for e.g. `IsItemDeactivatedAfterEdit()`
+    signals to be emitted the same way regardless of that setting. (#9001, #9115)
+  - Fixed a glitch when using `ImGuiInputTextFlags_ElideLeft` where the local x offset
+    would be incorrect during the deactivation frame. (#9298)
+  - Fixed a crash introduced in 1.92.6 when handling `ImGuiInputTextFlags_CallbackResize`
+    in certain situations. (#9174)
+  - Fixed selection highlight Y1 offset being very slightly off (since 1.92.3). (#9311) [@v-ein]
+  - InputTextMultiline: fixed an issue introduced in 1.92.3 where line count calculated
+    for vertical scrollbar range would be +1 when the widget is inactive, word-wrap is
+    disabled and the text buffer ends with '\n'. Fixed a similar issue related to clipping
+    large amount of text.
+  - InputTextMultiline: avoid going through reactivation code and fixed losing revert value
+    when activating scrollbar.
+  - InputTextMultiline: fixed an issue where edit buffer wouldn't be reapplied to back
+    buffer on the `IsItemDeactivatedAfterEdit()` frame. This could create issues when
+    using the idiom of not applying edits before `IsItemDeactivatedAfterEdit()`.
+    (#9308, #8915, #8273)
+- Tables:
+  - Allow reordering columns by dragging them in the context menu. (#9312)
+  - Context menu now presents columns in display order. (#9312)
+  - Fixed and clarified the behavior of using `TableSetupScrollFreeze()` with columns>1,
+    and where some of the columns within that range were Hidable.
+    - Before: `TableSetupScrollFreeze(N, 0)`: include the N left-most visible columns as
+              part of the scroll freeze. So if you intentionally hide columns <N, the scroll
+              freeze area would start covering the subsequent/following columns (N+1) etc.
+    - After:  `TableSetupScrollFreeze(N, 0)`: include the N left-most columns (regardless of visibility),
+              as part of the scroll freeze. So if you intentionally hide columns <N, the scroll
+              freeze area will cover less columns.
+    - This is generally more sane and logical.
+  - Fixed dragging a header to reorder outside of visible bounds (due to horizontal scrolling)
+    from losing active id.
+  - Angled Headers: angled section for column being reordered via the regular headers
+    stays highlighted during reordering.
+- Style:
+  - Fonts: fixed an issue introduced in 1.92.6 where `style.FontBaseSize` would be
+    cleared during the first frame if no fonts was explicitly added before.
+  - Border sizes are now scaled (and rounded) by `ScaleAllSizes()`.
+  - When using large values with `ScallAllSizes()`, the following items thickness
+    are scaled to integer amounts:
+    - `InputText()` caret/cursor thickness. (#7031)
+    - `CloseButton()` thickness.
+    - `TextLink()` underline thickness.
+    - `ColorButton()` border thickness.
+    - `Separator()` thickness, via scaling newly added `style.SeparatorSize`. (#2657, #9263)
+- Nav:
+  - Popups: Shift+F10 or Menu key can now open popups menus when using
+    `BeginPopupContextItem()`, `BeginPopupContextWindow()` or `OpenPopupOnItemClick()`.
+    (#8803, #9270) [@exelix11, @ocornut]
+  - Changed Gamepad mapping for "Activate with Text Input" action: (#8803, #787)
+    - Previously: press North button (PS4/PS5 triangle, Switch X, Xbox Y).
+    - Now: long press (hold) Activate button (PS4/PS5 cross, Switch B, Xbox A) for ~0.60 secs.
+    This is rarely used, somehow easier to discover, and frees a button for other uses.
+    See updated Gamepad Control Sheets: https://www.dearimgui.com/controls_sheets
+  - Short Gamepad Activation press on InputText() always activate with Text Input mode.
+  - Popups: pressing North button (PS4/PS5 triangle, SwitchX, Xbox Y) also open popups menus.
+- Multi-Select:
+  - Added `ImGuiMultiSelectFlags_SelectOnClickAlways` mode (rarely used).
+    This prevents Drag and Drop of multiple items, but it allows to start a new Box-Selection
+    from inside an existing selection (Excel style). (#9307, #1861)
+- Clipper:
+  - Clear `DisplayStart`/`DisplayEnd` fields when `Step()` returns false.
+  - Added `UserIndex` helper storage. This is solely a convenience for cases where
+    you may want to carry an index around.
+  - Always pulls current context on `ImGuiListClipper::Begin()`, consistent with public
+    API design, and avoids issues with clipper instances outliving contexts. (#9324, #5856)
+- Scrollbar:
+  - Implemented a custom tweak to extend hit-testing bounding box when window is sitting
+    at the edge of a viewport (e.g. fullscreen or docked window), so that e.g. mouse the
+    mouse at the extreme of the screen will reach the scrollbar. (#9276)
+  - Fixed an issue which could lead initial click to move the current scroll by a pixel.
+- Button:
+  - Moved `ImGuiButtonFlags_AllowOverlap` from imgui_internal.h to imgui.h,
+    as a convenience for when using e.g. `InvisibleButton()`.
+- Focus: fixed fallback "Debug" window temporarily taking focus and setting `io.WantCaptureKeyboard`
+  for one frame on e.g. application boot if no other windows are submitted. (#9243)
+- DrawList:
+  - PathArcTo(): fixed erroneous segment count for pathologically small arcs on large 
+    circles. (#9331, #9313) [@thedmd, @epajarre]
+- Memory:
+  - Discard/GC of ImDrawList buffers for unused windows favor restoring them to
+    ~Size*1.05 instead of Capacity when awakening again. Facilitate releasing ImDrawList
+    buffers after unusual usage spike. (#9303)
+  - Fixed `GetForegroundDrawList()`/`GetBackgroundDrawList()` per-viewport buffers not being
+    collected when unused for `io.ConfigMemoryCompactTimer` amount of time. (#9303)
+- Demo: fixed `IMGUI_DEMO_MARKER` locations for examples applets. (#9261, #3689) [@pthom]
+- Misc: added missing ImVec2/ImVec4 operators. (#9339, #8258) [@dkosmari, @ArashPartow]
+- Internals:
+  - ButtonBehavior: fixed internal/low-level `ImGuiButtonFlags_PressedOnRelease`
+    (as well as equivalent `ImGuiSelectableFlags_SelectOnRelease` for Selectable) from
+    not taking current active id. `ImGuiButtonFlags_NoHoldingActiveID` allows that.
+    This was only used internally by MenuItem().
+- Backends:
+  - DirectX9, OpenGL2, OpenGL3, Metal, SDLGPU3, SDLRenderer2, SDLRenderer3: fixed easy-to-fix
+    issues in code assuming ImTextureID_Invalid is always defined to 0. (#9295, #9310)
+  - GLFW: mouse cursor is properly restored if changed by user app/code while using
+    `glfwSetInputMode(..., GLFW_CURSOR_DISABLED)` or `ImGuiConfigFlags_NoMouseCursorChange`.
+    Amend optimization done in 1.92.6.
+  - SDLGPU3: removed unnecessary call to `SDL_WaitForGPUIdle()` when releasing
+    vertex/index buffers. (#9262) [@jaenis]
+  - WebGPU: fixed version check for Emscripten 5.0.0+.
+  - WebGPU: removed support for Emscripten <4.0.10. (#9281) [@ypujante]
+  - WebGPU: added support for WGVK native backend via `IMGUI_IMPL_WEBGPU_BACKEND_WGVK`,
+    using SPIRV shaders if WGSL is not available. (#9316, #9246, #9257) [@r-lyeh]
+    (WGVK is a lightweight alternative to Dawn or WGPU for native applications,
+    which is easier to build/setup, see: https://github.com/manuel5975p/WGVK)
+- Examples:
+  - Emscripten: added `tabindex=-1` to canvas in our shell_minimal.htm. Without it,
+    the canvas was not focusable in the DOM, which in turn make some backends
+    (e.g. pongasoft/emscripten-glfw) not receive focus loss events. (#9259) [@pthom]
+  - Emscripten: fixed minor rendering issues with our HTML shell. (#9281) [@ypujante]
+    - hidden small blue outline when canvas is focused on Chrome.
+    - hidden scrollbar in Firefox.
+  - Vulkan: added `ImGui_ImplVulkan_PipelineInfo::ExtraDynamicStates[]` to allow specifying
+    extra dynamic states to add when creating the VkPipeline. (#9211) [@DziubanMaciej]
+  - Vulkan: `ImGui_ImplVulkan_AddTexture()` skips updating descriptor_set if failing
+    to allocate one. (#8677) [@micb25]
+  - WebGPU: fixed undefined behaviors in example code for requesting adapter
+    and device. (#9246, #9256) [@r-lyeh]
+  - SDL2+WebGPU: fixed hi-dpi handling. (#9300) [@ypujante]
+  - GLFW/SDL2/SDL3+WebGPU: added support for WGVK. (#9316, #9246, #9257) [@r-lyeh, @ocornut]
+  - GLFW/SDL2/SDL3+WebGPU: removed support for Emscripten <4.0.10. (#9281) [@ypujante]
+
+
+-----------------------------------------------------------------------
+ VERSION 1.92.6 (2026-02-17)
+-----------------------------------------------------------------------
+
+Decorated log and release notes: https://github.com/ocornut/imgui/releases/tag/v1.92.6
+
+Breaking Changes:
+
+- Fonts:
+  - `AddFontDefault()` now automatically selects an embedded font between:
+    - `AddFontDefaultBitmap()`: classic pixel-clean font. Recommended at Size 13px with no scaling.
+    - `AddFontDefaultVector()`: new scalable font. Recommended at any higher size.
+    - The default selection is based on (style.FontSizeBase * FontScaleMain * FontScaleDpi)
+      reaching a small threshold, but old codebases may not set any of them properly.
+      As as a result, it is likely that old codebase may still default to AddFontDefaultBitmap().
+    - Prefer explicitly calling either of them based on your own logic!
+      You can call `AddFontDefaultBitmap()` to ensure legacy behavior.
+  - Fixed handling of `ImFontConfig::FontDataOwnedByAtlas = false` which did
+    erroneously make a copy of the font data, essentially defeating the purpose
+    of this flag and wasting memory (undetected since July 2015 and now spotted
+    by @TellowKrinkle, this is perhaps the oldest bug in Dear ImGui history,
+    albeit for a rarely used feature!) (#9086, #8465)
+    HOWEVER, fixing this bug is likely to surface bugs in user/app code:
+    - Prior to 1.92, font data only needs to be available during the `atlas->AddFontXXX()` call.
+      Since 1.92, font data needs to available until `atlas->RemoveFont()`, or more typically
+      until a shutdown of the owning context or font atlas.
+    - The fact that handling of `FontDataOwnedByAtlas = false` was broken bypassed
+      the issue altogether.
+  - Removed `ImFontConfig::PixelSnapV` added in 1.92 which turns out is unnecessary
+    (and was mis-documented). Post-rescale `GlyphOffset` is always rounded.
+ - Popups: changed compile-time `ImGuiPopupFlags popup_flags = 1` default value to be `= 0` for
+   `BeginPopupContextItem()`, `BeginPopupContextWindow()`, `BeginPopupContextVoid()`, `OpenPopupOnItemClick()`.
+   The default value has same meaning before and after. (#9157, #9146)
+   - Before this version, those functions had a `ImGuiPopupFlags popup_flags = 1` default
+     value in their function signature. This was introduced by a change on 2020/06/23 (1.77)
+     while changing the signature from `int mouse_button` to `ImGuiPopupFlags popup_flags`
+     and trying to preserve then-legacy behavior.
+   - We have now changed this behavior to: cleanup a very old API quirk, facilitate use by
+     bindings, and to remove the last and error-prone non-zero default value. Also because we
+     deemed it extremely rare to use those helper functions with the Left mouse button!
+     As using the LMB would generally be triggered via another widget,
+     e.g. a Button() + a OpenPopup()/BeginPopup() call.
+   - Before: The default = 1 means `ImGuiPopupFlags_MouseButtonRight`.
+             Explicitly passing a literal 0 means `ImGuiPopupFlags_MouseButtonLeft`.
+   - After:  The default = 0 means `ImGuiPopupFlags_MouseButtonRight`.
+             Explicitly passing a literal 1 also means `ImGuiPopupFlags_MouseButtonRight`.
+             (if legacy behavior are enabled) or will assert (if legacy behavior are disabled).
+   - TL;DR: if you don't want to use right mouse button for popups, always specify it
+     explicitly using a named `ImGuiPopupFlags_MouseButtonXXXX` value.
+   Recap:
+   - BeginPopupContextItem("foo");                                         // Behavior unchanged (use Right button)
+   - BeginPopupContextItem("foo", ImGuiPopupFlags_MouseButtonLeft);        // Behavior unchanged (use Left button)
+   - BeginPopupContextItem("foo", ImGuiPopupFlags_MouseButtonLeft | xxx);  // Behavior unchanged (use Left button + flags)
+   - BeginPopupContextItem("foo", ImGuiPopupFlags_MouseButtonRight | xxx); // Behavior unchanged (use Right button + flags)
+   - BeginPopupContextItem("foo", 1);                                      // Behavior unchanged (as a courtesy we legacy interpret 1 as ImGuiPopupFlags_MouseButtonRight, will assert if disabling legacy behaviors.
+   - BeginPopupContextItem("foo", 0);                                      // !! Behavior changed !! Was Left button. Now will defaults to Right button! --> Use ImGuiPopupFlags_MouseButtonLeft.
+   - BeginPopupContextItem("foo", ImGuiPopupFlags_NoReopen);               // !! Behavior changed !! Was Left button + flags. Now will defaults to Right button! --> Use ImGuiPopupFlags_MouseButtonLeft | xxx.
+- Commented out legacy names obsoleted in 1.90 (Sept 2023):
+  - `BeginChildFrame()`     --> `BeginChild()` with `ImGuiChildFlags_FrameStyle` flag.
+  - `EndChildFrame()`       --> `EndChild()`.
+  - `ShowStackToolWindow()` --> `ShowIDStackToolWindow()`.
+  - `IM_OFFSETOF()`         --> `offsetof()`.
+  - `IM_FLOOR()`            --> `IM_TRUNC()` [internal, for positive values only]
+- Hashing: handling of "###" operator to reset to seed within a string identifier
+  doesn't include the "###" characters in the output hash anymore:
+      Before: `GetID("Hello###World") == GetID("###World") != GetID("World")`
+      After:  `GetID("Hello###World") == GetID("###World") == GetID("World")`
+  - This has the property of facilitating concatenating and manipulating
+    identifiers using "###", and will allow fixing other dangling issues.
+  - This will invalidate hashes (stored in .ini data) for Tables and Windows
+    that are using the "###" operators. (#713, #1698)
+- Renamed helper macro `IM_ARRAYSIZE()` -> `IM_COUNTOF()`. Kept redirection/legacy name.
+- Backends:
+  - Vulkan: optional `ImGui_ImplVulkanH_DestroyWindow()` helper used by our example
+    code does not call `vkDestroySurfaceKHR()`: because surface is created by caller
+    of `ImGui_ImplVulkanH_CreateOrResizeWindow()`, it is more consistent. (#9163)
+
+Other Changes:
+
+- Fonts:
+  - Added `AddFontDefaultVector()`: a new embedded monospace scalable font: ProggyForever!
+    From https://github.com/ocornut/proggyforever:
+      "ProggyForever is an MIT-licensed partial reimplementation of the ProggyVector
+       font (originally by Tristan Grimmer), which itself is a vector-based
+       reinterpretation of the ProggyClean bitmap font that happily served as
+       Dear ImGui default font for over 10 years." [...]
+      "I commissioned Thiebault Courot to recreate this, applied various minor tweaks
+       and fixes, and reworked his editing pipeline toward shipping FontForge source
+       files so we can allow and track future changes."
+    - TL;DR; there was no strictly MIT-licensed matching font. We made it!
+    - The font data was carefully subsetted, trimmed and compressed so the embedded
+      data is ~14 KB. Embedding a scalable default font ensures that Dear ImGui can
+      be easily and readily used in all contexts, even without file system access.
+    - Expect minor fixes/improvements in following releases.
+    - As always you can opt-out of the embedded font data if desired.
+  - `AddFontDefault()` now automatically selects an embedded font between
+    the classic pixel-looking one and the new scalable one.
+    Prefer calling `AddFontDefaultVector()` or `AddFontDefaultBitmap()` explicitly.
+  - Fixed a crash when trying to use `AddFont()` with `MergeMode==true` on a font that
+    has already been rendered. (#9162) [@ocornut, @cyfewlp]
+  - Fixed an issue where using `PushFont()` from the implicit/fallback "Debug" window
+    when its recorded state is collapsed would incorrectly early out. This would break
+    e.g. using direct draw-list calls such as `GetForegroundDrawList()` with current font.
+    (#9210, #8865)
+  - Fixed an issue related to `EllipsisChar` handling, while changing
+    font loader or font loader flags dynamically in Style->Fonts menus.
+  - imgui_freetype: fixed overwriting `ImFontConfig::PixelSnapH` when hinting
+    is enabled, creating side-effects when later disabling hinting or
+    dynamically switching to stb_truetype rasterizer.
+  - Adding new fonts after removing all fonts mid-frame properly updates current state.
+- Textures:
+  - Fixed a building issue when `ImTextureID` is defined as a struct.
+  - Fixed displaying texture # in Metrics/Debugger window.
+- Menus:
+  - Fixed `MenuItem()` label position and `BeginMenu()` arrow/icon/popup positions,
+    when used inside a line with a baseline offset.
+  - Made navigation into menu-bar auto wrap on X axis. (#9178)
+- TreeNode:
+  - Fixed highlight position when used inside a line with a large text baseline offset.
+    (it never quite worked in this situation; but then most of the time the text
+    baseline offset ends up being zero or `FramePadding.y` for a given line).
+- Tables:
+  - Fixed an issue where a very thin scrolling table would advance parent layout
+    slightly differently depending on its visibility (caused by a mismatch
+    between hard minimum window size and table minimum size).
+  - Fixed an issue where submitting non-integer row heights would eventually
+    advance table parent layout by +0/+1 depending on its visibility.
+  - Fixed losing stored display order when reducing column count or when .ini
+    data has missing or duplicate values. (#9108, #4046)
+- ColorEdit:
+  - Added R/G/B/A color markers next to each component (enabled by default).
+  - Added `ImGuiColorEditFlags_NoColorMarkers` to disable them.
+  - Added `style.ColorMarkerSize` to configure width of color component markers.
+- Sliders, Drags:
+  - Added `ImGuiSliderFlags_ColorMarkers` to opt-in adding R/G/B/A color markers
+    next to each components, in multi-components functions.
+  - Added a way to select a specific marker color.
+- InputText:
+  - InputTextMultiline(): fixed a minor bug where Shift+Wheel would allow a small
+    horizontal scroll offset when there should be none. (#9249)
+  - ImGuiInputTextCallbackData: `SelectAll()` also sets `CursorPos` to `SelectionEnd`.
+  - ImGuiInputTextCallbackData: Added `SetSelection()` helper.
+  - ImGuiInputTextCallbackData: Added `ID` and `EventActivated` members. (#9174)
+- Text, InputText:
+  - Reworked word-wrapping logic:
+    - Try to not wrap in the middle of contiguous punctuation. (#8139, #8439, #9094)
+    - Try to not wrap between a punctuation and a digit. (#8503)
+    - Inside `InputTextMultiline()` with WordWrap enabled: prefer keeping blanks at
+      the end of a line rather than at the beginning of next line. (#8990, #3237)
+  - Fixed low-level word-wrapping function reading from `*text_end` when passed
+    a string range. (#9107) [@achabense]
+  - Changed `RenderTextEllipsis()` logic to not trim trailing blanks before
+    the ellipsis, making ellipsis position more consistent and not arbitrary
+    hiding the possibility of multiple blanks. (#9229)
+- Nav:
+  - Fixed remote/shortcut InputText() not teleporting mouse cursor when
+    nav cursor is visible and `io.ConfigNavMoveSetMousePos` is enabled.
+  - Fixed a looping/wrapping issue when used in menu layer. (#9178)
+  - Fixed speed scale for resizing/moving with keyboard/gamepad. We incorrectly
+    used `io.DisplayFramebufferScale` as a scaling factor (very old code),
+    effectively making those actions faster on macOS/iOS retina screens.
+    (changed this to use a style scale factor that's not fully formalized yet)
+  - Fixed an UBSan warning when using in a `ImGuiListClipper` region . (#9160)
+- Scrollbar: fixed a code-path leading to a divide-by-zero (which would not be
+  noticeable by user but detected by sanitizers). (#9089) [@judicaelclair]
+- InvisibleButton: allow calling with size (0,0) to fit to available content 
+  size. (#9166, #7623)
+- Tooltips, Disabled: fixed `EndDisabledOverrideReenable()` assertion when
+  nesting a tooltip in a disabled block. (#9180, #7640) [@RegimantasSimkus]
+- Added `GetItemFlags()` in public API for consistency and to expose generic
+  flags of last submitted item. (#9127)
+- Misc: fixed build on ARM64/ARM64EC targets trying to use SSE/immintrin.h.
+  (#9209, #5943, #4091) [@navvyswethgraphics]
+- Log/Capture:
+  - Fixed erroneously injecting extra carriage returns in output text buffer
+    when `ItemSpacing.y` > `FramePadding.y + 1` while emitting items.
+- Images:
+  - Added `style.ImageRounding`, `ImGuiStyleVar_ImageRounding `to configure
+    rounding of `Image()` widgets. (#2942, #845)
+  - `ImageButton()` doesn't use a clamped `style.FrameRounding` value but instead
+    adjust inner image rounding when `FramePadding > `FrameRounding`. (#2942, #845)
+- Shortcuts:
+  - IsItemHovered() without `ImGuiHoveredFlags_AllowWhenBlockedByActiveItem`
+    doesn't filter out the signal when activated item is a shortcut remote activation;
+    (which mimics what's done internally in the `ItemHoverable()` function). (#9138)
+  - Fixed tooltip placement being affected for a frame when located over an item
+    activated by `SetNextItemShortcut()`. (#9138)
+- Error Handling:
+  - Improved error handling and recovery for `EndMenu()`/`EndCombo()`. (#1651, #9165, #8499)
+  - Improved error handling and recovery for `TableSetupColumn()`.
+- Debug Tools:
+  - Debug Log: fixed incorrectly printing characters in IO log when submitting
+    non-ASCII values to `io.AddInputCharacter()`. (#9099)
+  - Debug Log: can output to debugger on Windows via Win32 `OutputDebugString()` (#5855)
+- Demo:
+  - Slightly improve `Selectable()` demos. (#9193)
+- Backends:
+  - DirectX10: added `SamplerNearest` in `ImGui_ImplDX10_RenderState`.
+    (+renamed `SamplerDefault` to `SamplerLinear`, which was tagged as beta API)
+  - DirectX11: added `SamplerNearest` in ImGui_ImplDX11_RenderState.
+    (+renamed `SamplerDefault` to `SamplerLinear`, which was tagged as beta API)
+  - GLFW: Avoid repeated `glfwSetCursor()` / `glfwSetInputMode()` unnecessary calls.
+    Lowers overhead for very high framerates (e.g. 10k+ FPS). [@maxliani]
+  - GLFW: Added `IMGUI_IMPL_GLFW_DISABLE_X11` / `IMGUI_IMPL_GLFW_DISABLE_WAYLAND` to
+    forcefully disable either. (#9109, #9116)
+    Try to set them automatically if headers are not accessible. (#9225)
+  - OpenGL3: Fixed embedded loader multiple init/shutdown cycles broken on some
+    platforms. (#8792, #9112)
+  - SDL2, SDL3: changed `GetClipboardText()` handler to return NULL on error aka
+    clipboard contents is not text. Consistent with other backends. (#9168)
+  - SDL2, SDL3: systems other than X11 are back to starting mouse capture on mouse down
+    (reverts 1.91.9 change). Only X11 requires waiting for a drag by default (not ideal,
+    but a better default for X11 users). Waiting for a drag to start mouse capture leads to
+    input drops when dragging after clicking on the edge of a window.
+    (#3650, #6410, #9235, #3956, #3835)
+  - SDL2, SDL3: added `ImGui_ImplSDL2_SetMouseCaptureMode()`/`ImGui_ImplSDL3_SetMouseCaptureMode()`
+    function for X11 users to disable mouse capturing/grabbing. (#3650, #6410, #9235, #3956, #3835)
+    - When attached to a debugger may want to call:
+      - `ImGui_ImplSDL3_SetMouseCaptureMode(ImGui_ImplSDL3_MouseCaptureMode_Disabled);`
+    - But you can also configure your system or debugger to automatically release
+      mouse grab when crashing/breaking in debugger, e.g.
+      - console: `setxkbmap -option grab:break_actions && xdotool key XF86Ungrab`
+      - or use a GDB script to call `SDL_CaptureMouse(false)`. See #3650.
+    - On platforms other than X11 this is unnecessary.
+  - SDL_GPU3: added `SamplerNearest` in `ImGui_ImplSDLGPU3_RenderState`.
+  - SDL_GPU3: macOS version can use MSL shaders in order to support macOS 10.14+
+    (vs Metallib shaders requiring macOS 14+). Requires application calling
+    `SDL_CreateGPUDevice()` with `SDL_GPU_SHADERFORMAT_MSL`. (#9076) [@Niminem]
+  - Vulkan: helper for creating a swapchain (used by examples and multi-viewports)
+    selects `VkSwapchainCreateInfoKHR`'s `compositeAlpha` value based on
+    `cap.supportedCompositeAlpha`, which seems to be required on some Android
+     devices. (#8784) [@FelixStach]
+  - WebGPU: fixes for Emscripten 5.0.0 (note: current examples do not build with 5.0.1).
+  - Win32: handle `WM_IME_CHAR`/`WM_IME_COMPOSITION` to support Unicode inputs on
+    MBCS (non-Unicode) Windows. (#9099, #3653, #5961) [@ulhc, @ocornut, @Othereum]
+  - Win32: minor optimization not submitting gamepad input if packet number has not
+    changed (reworked previous 1.92.4). (#9202, #8556) [@AhmedSamyMousa, @MidTerm-CN]
+- Examples:
+   - Win32+DirectX12: ignore seemingly incorrect `D3D12_MESSAGE_ID_FENCE_ZERO_WAIT`
+     warning on startups on some setups. (#9084, #9093) [@RT2Code, @LeoGautheron]
+
+
+-----------------------------------------------------------------------
+ VERSION 1.92.5 (Released 2025-11-20)
+-----------------------------------------------------------------------
+
+Decorated log and release notes: https://github.com/ocornut/imgui/releases/tag/v1.92.5
+
+Breaking Changes:
+
+ - Keys: commented out legacy names which were obsoleted in 1.89.0 (August 2022).
+   - ImGuiKey_ModCtrl  --> ImGuiMod_Ctrl
+   - ImGuiKey_ModShift --> ImGuiMod_Shift
+   - ImGuiKey_ModAlt   --> ImGuiMod_Alt
+   - ImGuiKey_ModSuper --> ImGuiMod_Super
+ - IO: commented out legacy io.ClearInputCharacters() obsoleted in 1.89.8 (Aug 2023).
+   Using io.ClearInputKeys() is enough.
+ - BeginChild: commented out legacy names which were obsoleted in 1.90.0 (Nov 2023),
+   1.90.9 (July 2024), 1.91.1 (August 2024). (#462, #7687)
+   - ImGuiChildFlags_Border                  --> ImGuiChildFlags_Borders
+   - ImGuiWindowFlags_NavFlattened           --> ImGuiChildFlags_NavFlattened (moved to ImGuiChildFlags).
+   - ImGuiWindowFlags_AlwaysUseWindowPadding --> ImGuiChildFlags_AlwaysUseWindowPadding (moved to ImGuiChildFlags).
+   So:
+   - BeginChild(name, size, 0, ImGuiWindowFlags_NavFlattened)           --> BeginChild(name, size, ImGuiChildFlags_NavFlattened, 0)
+   - BeginChild(name, size, 0, ImGuiWindowFlags_AlwaysUseWindowPadding) --> BeginChild(name, size, ImGuiChildFlags_AlwaysUseWindowPadding, 0)
+ - Commented out legacy SetItemAllowOverlap() obsoleted in 1.89.7: this never worked right.
+   Use SetNextItemAllowOverlap() _before_ item instead.
+
+Other Changes:
+
+- Windows:
+  - Config flag io.ConfigWindowsMoveFromTitleBarOnly is now latched during
+    Begin(), effectively allowing to change the value on a per-window basis.
+    (although there is a better internal mechanism for it).
+  - Fixed single-axis auto-sizing (via double-clicking a border or passing
+    0.0f on one axis of SetNextWindowSize() call) to take account of remaining
+    scrollbar on the other axis. (#9060)
+  - Fixed an issue where repeated calls to SetNextWindowSize() using 0.0f
+    to auto-size on a given axis would keep marking ini settings as dirty.
+- Tables:
+  - Fixed a bug where nesting BeginTable()->Begin()->BeginTable() would
+    result in temporarily incorrect state, which would lead to bugs to side effects
+    in various locations, e.g. GetContentRegionAvail() calls or using clipper. (#9005)
+    EndTable() was mistakenly restoring a wrong current table.
+  - Angled headers: fixed an auto-resize feedback loop that could
+    affect tables with empty non-resizing columns using angled headers, making
+    them typically flicker back and forth between +0 and +1 pixels.
+- Disabled: fixed a bug when a previously enabled item that got nav focus
+  and then turns disabled could still be activated using keyboard. (#9036)
+- InputText:
+  - When buffer is not resizable, trying to paste contents that cannot
+    fit will now truncate text to nearest UTF-8 codepoint boundaries,
+    instead of completely ignoring the paste. (#9029)
+  - Avoid continuously overwriting ownership of ImGuiKey_Enter/_KeypadEnter
+    keys in order to allow e.g. external Shortcut override behavior. (#9004)
+  - When using a callback to reduce/manipulate the value of BufTextLen,
+    we do not require anymore that CursorPos be clamped by user code. (#9029)
+  - Fixed an assert when using ImGuiInputTextFlags_ReadOnly and making
+    underlying contents shorter while text is selected. (#9069, #3237)
+    (regression from 1.92.3)
+  - InputTextMultiline: fixed a crash when using ImGuiInputTextFlags_WordWrap and
+    resizing the parent window while keeping the multi-line field active (which is
+    most typically achieved when resizing programmatically or via a docking layout
+    reacting to a platform window resize). (#3237, #9007) [@anton-kl, @ocornut]
+- Nav:
+  - Reworked PageUp/PageDown logic to pick same-page top/bottom page based
+    on inner rectangle rather than clipping rectangle, ensuring consistent
+    (but occasionally less practical) navigation result when a window is
+    partially out of screen. (#787)
+  - Improved/clarified behavior when requesting PageUp/PageDown from a
+    focused item which is outside of visible boundaries: now ends up one
+    page away from focused item. (#9079)
+  - Clipper: fixed an issue when using up/down from an item outside of
+    visible bound and using the clipper. (#9079)
+- Fonts:
+  - Calling ImFontAtlas::Clear() mid-frame without re-adding a font will
+    lead to a more explicit crash.
+- Textures:
+  - Fixed an issue preventing multi-contexts from using each others' fonts
+    if context 2 runs after context 1's Render() function. (#9039)
+- MultiSelect: added ImGuiMultiSelectFlags_NoSelectOnRightClick to disable default
+  right-click processing, which selects item on mouse down and is designed for
+  context-menus. (#8200, #9015)
+- Groups: fixed an issue reporting IsItemEdited() signal after EndGroup() when
+  triggered by some widgets e.g. Checkbox(), Selectable() and many others, which
+  cleared ActiveId at the same time as editing. (#9028)
+  Note that IsItemDeactivatedAfterEdit() was not affected, only IsItemEdited().
+- Misc: standardized casing of keyboard mods in comments and demo, showing
+  as e.g. "Ctrl" instead of "CTRL".
+- CI: Added Dear ImGui Test Suite to CI builds. [@rokups]
+- Drag and Drop:
+  - Added ImGuiDragDropFlags_AcceptDrawAsHovered to make accepting item render
+    as hovered, which can allow using e.g. Button() as drop target. (#8632)
+  - Pressing Escape while carrying a payload automatically cancel the
+    active drag and drop. (#9071)
+  - Style: added ImGuiCol_DragDropTargetBg, style.DragDropTargetRounding,
+    style.DragDropTargetBorderSize and style.DragDropTargetPadding to configure
+    the drop target highlight. (#9056) [@aaronkirkham]
+- Demo: About Box: emit infos to convey when IM_ASSERT() macro is disabled,
+  - so users don't miss out on programming errors being reported.
+  - so it is included in config/build info submitted in new GitHub Issues.
+- Debug Tools:
+   - Fixed DebugTextEncoding() potentially reading out of bounds when
+     provided a trailing truncated UTF-8 sequence.
+   - Metrics: fixed table and columns rect highlight from display when
+     debug/metrics window is not in the same viewport as the table.
+- Backends:
+  - NULL: added imgui_impl_null platform/renderer backend.
+    This is designed if you need to run e.g. context with no input or no output.
+  - GLFW: fixed building on Linux platforms where Wayland headers
+    are not available. (#9024, #8969, #8921, #8920) [@jagot]
+  - GLFW: lower minimum requirement from GLFW 3.1 to GLFW 3.0. Though
+    a recent version e.g GLFW 3.4 is highly recommended! (#9055) [@Clownacy]
+  - GLFW: fixed last `ImGui_ImplGlfw_Shutdown()` not immediately clearing the context
+    map, which would be detected by leak trackers. (#9075, #8676, #8239, #8069) [@erincatto]
+  - SDL3: fixed Platform_OpenInShellFn() return value (the return value
+    was unused in core but might be used by a direct caller). (#9027) [@achabense]
+  - SDL3: fixed an issue with missing characters events when an already active text
+    field changes viewports. (#9054)
+  - Vulkan: added IMGUI_IMPL_VULKAN_VOLK_FILENAME to configure path to
+    Volk (default to "volk.h"). (#9008, #7722, #6582, #4854) [@mwlasiuk]
+  - WebGPU: update to compile with Dawn and Emscripten's 4.0.10+
+    '--use-port=emdawnwebgpu' ports. (#8381, #8898, #7435) [@brutpitt, @trbabb]
+    When using Emscripten 4.0.10+, backend now defaults to IMGUI_IMPL_WEBGPU_BACKEND_DAWN
+    instead of IMGUI_IMPL_WEBGPU_BACKEND_WGPU, if neither are specified.
+  - WebGPU: added various internal/optional helpers to wrap some of the
+    Dawn/WGPU/Emscripten debacle quirks: (#8381) [@brutpitt]
+     - ImGui_ImplWGPU_CreateWGPUSurfaceHelper().
+     - ImGui_ImplWGPU_IsSurfaceStatusError(), ImGui_ImplWGPU_IsSurfaceStatusSubOptimal().
+     - ImGui_ImplWGPU_DebugPrintAdapterInfo(),
+     - ImGui_ImplWGPU_GetBackendTypeName(), ImGui_ImplWGPU_GetAdapterTypeName(),
+       ImGui_ImplWGPU_GetDeviceLostReasonName(), ImGui_ImplWGPU_GetErrorTypeName(),
+       ImGui_ImplWGPU_GetLogLevelName().
+  - Win32: Revert 1.92.4 change of comparing dwPacketNumber, which prevents
+    refreshing accurate gamepad info after focus-out + io.ClearInputKeys(). (#8556)
+- Examples:
+  - NULL: update examples_null to use imgui_impl_null (which is a bit overengineering
+    but somehow consistent).
+  - GLFW+WebGPU: update example for latest specs, to work on Emscripten 4.0.10+,
+    latest Dawn-Native and WGPU-Native. (#8381, #8567, #8191, #7435) [@brutpitt]
+  - GLFW+WebGPU: removed unnecessary ImGui_ImplWGPU_InvalidateDeviceObjects() call
+    during surface resize. (#8381)
+  - SDL2+WebGPU: added new example (Emscripten + native Dawn/WGPU). (#8381) [@brutpitt]
+  - SDL3+WebGPU: added new example (Emscripten + native Dawn/WGPU). (#8381) [@brutpitt]
+  - Win32+OpenGL3: enable DPI awareness. (#9083)
+
+
 -----------------------------------------------------------------------
  VERSION 1.92.4 (Released 2025-10-14)
 -----------------------------------------------------------------------
@@ -74,6 +626,8 @@ Other Changes:
   using ImGuiWindowFlags_UnsavedDocument/ImGuiTabItemFlags_UnsavedDocument. (#8983)
 - IO: added ImGuiPlatformIO::ClearPlatformHandlers(), ClearRendererHandlers()
   helpers to null all handlers. (#8945, #2769)
+- Tables: changed ImGuiTableFlags_NoBordersInBody behavior to not draw border in
+  body even when resizing. (#8893)
 - Inputs:
   - Shortcuts: added support for combining ImGuiInputFlags_RouteFocused
     (which is the default route) with ImGuiInputFlags_RouteOverActive, allowing
@@ -476,7 +1030,7 @@ Breaking changes:
       which font input is providing which glyph.
 - Fonts: **IMPORTANT** on Thread Safety:
   - A few functions such as font->CalcTextSizeA() were by sheer luck (== accidentally)
-    thread-safe even thou we had never provided that guarantee before. They are
+    thread-safe even though we had never provided that guarantee before. They are
     definitively not thread-safe anymore as new glyphs may be loaded.
 
 - Textures:
@@ -1229,6 +1783,7 @@ Breaking changes:
 - Commented out pre-1.87 IO system (equivalent to using IMGUI_DISABLE_OBSOLETE_KEYIO or IMGUI_DISABLE_OBSOLETE_FUNCTIONS before).
   - io.KeyMap[] and io.KeysDown[] are removed (obsoleted February 2022). Use IsKeyDown() instead.
   - io.NavInputs[] and ImGuiNavInput are removed (obsoleted July 2022).
+  - GetKeyIndex() is removed (obsoleted March 2022). The indirection is now unnecessary.
   - Pre-1.87 backends are not supported:
     - backends need to call io.AddKeyEvent(), io.AddMouseEvent() instead of writing to io.KeysDown[], io.MouseDown[] fields.
     - backends need to call io.AddKeyAnalogEvent() for gamepad values instead of writing to io.NavInputs[] fields.

docs/EXAMPLES.md

@@ -72,7 +72,7 @@ OSX + OpenGL2 example. <BR>
  You may prefer to use the GLFW Or SDL backends, which will also support Windows and Linux.)
 
 [example_glfw_wgpu/](https://github.com/ocornut/imgui/blob/master/examples/example_glfw_wgpu/) <BR>
-GLFW + WebGPU example. Supports Emscripten (web) or Dawn (desktop) <BR>
+GLFW + WebGPU example. Supports Emscripten (web), Dawn (native), WGPU (native). <BR>
 = main.cpp + imgui_impl_glfw.cpp + imgui_impl_wgpu.cpp
 Note that the 'example_glfw_opengl3' and 'example_sdl2_opengl3' examples also supports Emscripten!
 
@@ -109,9 +109,11 @@ Note that GLUT/FreeGLUT is largely obsolete software, prefer using GLFW or SDL.
 
 [example_null/](https://github.com/ocornut/imgui/blob/master/examples/example_null/) <BR>
 Null example, compile and link imgui, create context, run headless with no inputs and no graphics output. <BR>
-= main.cpp <BR>
+= main.cpp + imgui_impl_null.cpp<BR>
 This is used to quickly test compilation of core imgui files in as many setups as possible.
 Because this application doesn't create a window nor a graphic context, there's no graphics output.
+Please note that imgui_impl_null itself is a rather empty backend. We provide it for consistency but
+it is similarly easy to create a skeleton application without the null backend.
 
 [example_sdl2_directx11/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_directx11/) <BR>
 SDL2 + DirectX11 example, Windows only. <BR>
@@ -149,6 +151,11 @@ SDL2 (Win32, Mac, Linux, etc.) + Vulkan example. <BR>
 This is quite long and tedious, because: Vulkan. <BR>
 For this example, the main.cpp file exceptionally use helpers function from imgui_impl_vulkan.h/cpp.
 
+[example_sdl2_wgpu/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_wgpu/) <BR>
+SDL2 + WebGPU example. Supports Emscripten (web), Dawn (native), WGPU (native). <BR>
+= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_wgpu.cpp
+(note that the 'example_sdl2_opengl3' example also supports Emscripten!)
+
 [example_sdl3_directx11/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_directx11/) <BR>
 SDL3 + DirectX11 examples, Windows only. <BR>
 = main.cpp + imgui_impl_sdl3.cpp + imgui_impl_dx11.cpp <BR>
@@ -177,6 +184,11 @@ SDL3 (Win32, Mac, Linux, etc.) + Vulkan example. <BR>
 This is quite long and tedious, because: Vulkan. <BR>
 For this example, the main.cpp file exceptionally use helpers function from imgui_impl_vulkan.h/cpp.
 
+[example_sdl3_wgpu/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_wgpu/) <BR>
+SDL3 + WebGPU example. Supports Emscripten (web), Dawn (native), WGPU (native). <BR>
+= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_wgpu.cpp
+(note that the 'example_sdl3_opengl3' example also supports Emscripten!)
+
 [example_win32_directx9/](https://github.com/ocornut/imgui/blob/master/examples/example_win32_directx9/) <BR>
 DirectX9 example, Windows only. <BR>
 = main.cpp + imgui_impl_win32.cpp + imgui_impl_dx9.cpp

docs/FAQ.md

@@ -25,7 +25,7 @@ or view this file with any Markdown viewer.
 | [I integrated Dear ImGui in my engine and some elements are clipping or disappearing when I move windows around...](#q-i-integrated-dear-imgui-in-my-engine-and-some-elements-are-clipping-or-disappearing-when-i-move-windows-around) |
 | [I integrated Dear ImGui in my engine and some elements are displaying outside their expected windows boundaries...](#q-i-integrated-dear-imgui-in-my-engine-and-some-elements-are-displaying-outside-their-expected-windows-boundaries) |
 | **Q&A: Usage** |
-| **[About the ID Stack system..<br>Why is my widget not reacting when I click on it?<br>Why is the wrong widget reacting when I click on one?<br>How can I have widgets with an empty label?<br>How can I have multiple widgets with the same label?<br>How can I have multiple windows with the same label?](#q-about-the-id-stack-system)** |
+| **[About the ID Stack system...](#q-about-the-id-stack-system)**<br>**[How can I have multiple widgets with the same label?](#q-how-can-i-have-multiple-widgets-with-the-same-label) (using `##` or `PushID()`)**<br>**[How can I have widgets with an empty label?](#q-how-can-i-have-widgets-with-an-empty-label) (using `##`)**<br>**[How can I animate the label of an existing widget?](#q-how-can-i-change-the-label-of-an-existing-widget) (using `###`)**<br>**[General description of the label and ID Stack system.](#general-description-of-the-label-and-id-stack-system)** |
 | [How can I display an image?](#q-how-can-i-display-an-image)<br>[What are ImTextureID/ImTextureRef?](#q-what-are-imtextureidimtextureref)|
 | [How can I use maths operators with ImVec2?](#q-how-can-i-use-maths-operators-with-imvec2) |
 | [How can I use my own maths types instead of ImVec2/ImVec4?](#q-how-can-i-use-my-own-maths-types-instead-of-imvec2imvec4) |
@@ -55,6 +55,7 @@ or view this file with any Markdown viewer.
 - Handy [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) guide to integrate Dear ImGui in an existing application.
 - 20+ standalone example applications using e.g. OpenGL/DirectX are provided in the [examples/](https://github.com/ocornut/imgui/blob/master/examples/) folder to explain how to integrate Dear ImGui with your own engine/application. You can run those applications and explore them.
 - See demo code in [imgui_demo.cpp](https://github.com/ocornut/imgui/blob/master/imgui_demo.cpp) and particularly the `ImGui::ShowDemoWindow()` function. The demo covers most features of Dear ImGui, so you can read the code and see its output.
+- See pthom's online [imgui_explorer](https://pthom.github.io/imgui_explorer) which is a web version of the demo with a source code browser.
 - See documentation: [Backends](https://github.com/ocornut/imgui/blob/master/docs/BACKENDS.md), [Examples](https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md), [Fonts](https://github.com/ocornut/imgui/blob/master/docs/FONTS.md).
 - See documentation and comments at the top of [imgui.cpp](https://github.com/ocornut/imgui/blob/master/imgui.cpp) + general API comments in [imgui.h](https://github.com/ocornut/imgui/blob/master/imgui.h).
 - The [Glossary](https://github.com/ocornut/imgui/wiki/Glossary) page may be useful.
@@ -262,15 +263,19 @@ ctx->RSSetScissorRects(1, &r);
 
 # Q&A: Usage
 
-### Q: About the ID Stack system...
-### Q: Why is my widget not reacting when I click on it?
-### Q: Why is the wrong widget reacting when I click on one?
-### Q: How can I have widgets with an empty label?
-### Q: How can I have multiple widgets with the same label?
-### Q: How can I have multiple windows with the same label?
+## Q: About the ID Stack system...
 
 **USING THE SAME LABEL+ID IS THE MOST COMMON USER MISTAKE!**
 <br>**USING AN EMPTY LABEL IS THE SAME AS USING THE SAME LABEL AS YOUR PARENT WIDGET!**
+<br>Read the questions in this section for a more general understand of how labels and ID works in Dear ImGui.
+
+TL;DR;
+- Widgets labels are also used to compute Widgets unique identifiers.
+- Unique identifiers are hashes of the label + of the parent scope (e.g. parent window or parent tree node labels).
+- You can use `PushID()` to append to the identifier without making it visible.
+- You can use `"##something"` in a label to append to the identifier without making it visible.
+- You can use `"###something"` in a label to make the identifier ignore the visible part.
+
 <table>
 <tr>
 <td><img src="https://github.com/user-attachments/assets/776a8315-1164-4178-9a8c-df52e0ff28aa"></td>
@@ -301,16 +306,99 @@ ImGui::End();
 </tr>
 </table>
 
-A primer on labels and the ID Stack...
+### Q: How can I have multiple widgets with the same label?
+
+A. When widgets are in a same scope and finite, you can use a `"##something"` suffix which will be part of the identifier but not visible as a label.
+
+```cpp
+Button("Play");        // Label = "Play",   ID = hash of ("MyWindow", "Play")
+Button("Play##foo1");  // Label = "Play",   ID = hash of ("MyWindow", "Play##foo1")  // Different from other buttons
+Button("Play##foo2");  // Label = "Play",   ID = hash of ("MyWindow", "Play##foo2")  // Different from other buttons
+```
+
+B. More generally, e.g. in loops, you can use `PushID()/PopID()` to push a prefix which will be part of the identifier.
+
+```cpp
+// Using PushID() with a string
+for (int i = 0; i < 100; i++)
+{
+  MyObject* obj = Objects[i];
+  PushID(obj->Name);
+  Button("Click");     // Label = "Click",  ID = hash of ("Window", obj->Name, "Click")
+  PopID();
+}
+```
+
+```cpp
+// Using PushID() with an index
+for (int i = 0; i < 100; i++)
+{
+  PushID(i);
+  Button("Click");     // Label = "Click",  ID = hash of ("Window", i, "Click")
+  PopID();
+}
+```
+
+### Q: How can I have widgets with an empty label?
+
+If you want to completely hide the label, but still need an ID:
+
+```cpp
+Checkbox("##On", &b);  // Label = "",       ID = hash of (..., "##On")   // No visible label, just a checkbox!
+```
+##### [Return to Index](#index)
+
+### Q: How can I make a label dynamic?
+
+Dear ImGui is very dynamic so you can submit different widgets every frame.
+However, in order to preserve widget state (eg. which tree node is open; which button is focused) the library internaly refers to their unique ID.
+
+Occasionally you might want to change a label while preserving a constant ID. This allows you to change/animate labels while persisting associated state.
+For example, you may want to include varying information in a window title bar or button label.
+
+Using "###" exclude the preceeding part from ID computation:
+```cpp
+Button("Hello###ID");   // Label = "Enable",   ID = hash of (..., "ID")
+Button("World###ID");   // Label = "Disable",  ID = hash of (..., "ID")  // Same ID, different label
+```
+Using a same ID ensure that associated related e.g. weither the widget is focused, won't be lost when the label changes.
+
+<table>
+<tr>
+<td><img src="https://github.com/user-attachments/assets/2bf18756-e122-498d-bbd4-5c44bb1018d5"></td>
+<td>
+<pre lang="cpp">
+// Window label has animating FPS counter
+// Window ID stays the same = hash of "MyGame"
+char buf[128];
+sprintf(buf, "My game (%.1f FPS)###MyGame", io.Framerate);
+ImGui::Begin(buf);
+&nbsp;
+// Label changes between "Enable" and "Disable"
+// ID stays the same = hash of ("MyGame", "MyButton")
+if (ImGui::Button(enabled ? "Disable###MyButton" : "Enable###MyButton", { -FLT_MIN, 0.0f }))
+    enabled = !enabled;
+&nbsp;
+ImGui::End();
+</pre>
+</td>
+</tr>
+</table>
+
+(Hint: I'd suggest wrapping sprintf in something more compact to use, e.g. [ocornut/Str](https://github.com/ocornut/Str) for what I personally use).
+
+##### [Return to Index](#index)
+
+### General description of the label and ID Stack system
 
 Dear ImGui internally needs to uniquely identify UI elements.
-Elements that are typically not clickable (such as calls to the Text functions) don't need an ID.
-Interactive widgets (such as calls to Button buttons) need a unique ID.
+Elements that are typically not clickable (such as calls to Text() functions) don't need an ID.
+Interactive widgets (such as calls to Button() functions) need a unique ID.
 
 **Unique IDs are used internally to track active widgets and occasionally associate state to widgets.<BR>
 Unique IDs are implicitly built from the hash of multiple elements that identify the "path" to the UI element.**
 
-Since Dear ImGui 1.85, you can use `Demo>Tools>ID Stack Tool` or call `ImGui::ShowIDStackToolWindow()`. The tool display intermediate values leading to the creation of a unique ID, making things easier to debug and understand.
+You can use `Demo>Tools>ID Stack Tool` or call `ImGui::ShowIDStackToolWindow()`. The tool display intermediate values leading to the creation of a unique ID, making things easier to debug and understand.
 
 ![Stack tool](https://user-images.githubusercontent.com/8225057/136235657-a0ea5665-dcd1-423f-9be6-dc3f8ced8f12.png)
 
@@ -364,20 +452,7 @@ Button("Play##foo2");  // Label = "Play",   ID = hash of ("MyWindow", "Play##foo
 Button("##foo");       // Label = "",       ID = hash of ("MyWindow", "##foo")       // Different from window
 End();
 ```
-- If you want to completely hide the label, but still need an ID:
-```cpp
-Checkbox("##On", &b);  // Label = "",       ID = hash of (..., "##On")   // No visible label, just a checkbox!
-```
-- Occasionally/rarely you might want to change a label while preserving a constant ID. This allows
-you to animate labels. For example, you may want to include varying information in a window title bar,
-but windows are uniquely identified by their ID. Use "###" to pass a label that isn't part of ID:
-```cpp
-Button("Hello###ID");  // Label = "Hello",  ID = hash of (..., "###ID")
-Button("World###ID");  // Label = "World",  ID = hash of (..., "###ID")  // Same ID, different label
 
-sprintf(buf, "My game (%f FPS)###MyGame", fps);
-Begin(buf);            // Variable title,   ID = hash of "MyGame"
-```
 - Solving ID conflict in a more general manner:
 Use `PushID()` / `PopID()` to create scopes and manipulate the ID stack, as to avoid ID conflicts
 within the same window. This is the most convenient way of distinguishing ID when iterating and
@@ -658,22 +733,28 @@ Since 1.92 (June 2025) fonts may be dynamically used at any size.
 
 **Scaling fonts**
 
+Select default size:
+```cpp
+style.FontSizeBase = 20.0f;
+```
+Scale all fonts:
+```cpp
+style.FontScaleDpi = 2.0f;
+```
+
 To change font size:
 ```cpp
-ImGui::PushFont(NULL, 42.0f);
+ImGui::PushFont(NULL, 42.0f); // This will be multiplied by style.FontScaleDpi
 ```
 To change font and font size:
 ```cpp
 ImGui::PushFont(new_font, 42.0f);
 ```
-To scale all fonts:
-```cpp
-style.FontScaleDpi = 2.0f;
-```
+
 In `docking` branch or with multi-viewports:
 ```cpp
-io.ConfigDpiScaleFonts = true;          // [Experimental] Automatically overwrite style.FontScaleDpi in Begin() when Monitor DPI changes. This will scale fonts but _NOT_ scale sizes/padding for now.
-io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
+io.ConfigDpiScaleFonts = true;          // (Docking branch only) Automatically overwrite style.FontScaleDpi in Begin() when Monitor DPI changes. This will scale fonts but _NOT_ scale sizes/padding for now.
+io.ConfigDpiScaleViewports = true;      // (Docking branch only) Scale Dear ImGui and Platform Windows when Monitor DPI changes.
 ```
 
 **Scaling style** (paddings, spacings, thicknesses)

docs/FONTS.md

@@ -2,10 +2,20 @@ _(You may browse this at https://github.com/ocornut/imgui/blob/master/docs/FONTS
 
 ## Dear ImGui: Using Fonts
 
-The code in imgui.cpp embeds a copy of [ProggyClean.ttf](http://proggyfonts.net) (by Tristan Grimmer),
-a 13 pixels high, pixel-perfect font used by default. We embed it in the source code so you can use Dear ImGui without any file system access. ProggyClean does not scale smoothly, therefore it is recommended that you load your own file when using Dear ImGui in an application aiming to look nice and wanting to support multiple resolutions.
+The code in Dear ImGui embeds a copy of [ProggyClean.ttf](https://github.com/bluescan/proggyfonts) by Tristan Grimmer,
+a 13 pixels high, pixel-perfect font used by default. ProggyClean does not scale very nicely.
 
-You may also load external .TTF/.OTF files.
+The code in Dear ImGui embeds a partial copy of [ProggyForever.ttf](https://github.com/ocornut/proggyforever) by Disco Hello & Tristan Grimmer,
+a new font mimicking ProggyClean which does scale nicely.
+
+We embed fonts in the code so you can use Dear ImGui without any file system access.
+If you don't use them you can set `IMGUI_DISABLE_DEFAULT_FONT` in your [imconfig.h](https://github.com/ocornut/imgui/blob/master/imconfig.h) file to ship binaries without the fonts and save about ~26 KB.
+
+Calling io.Fonts->AddFontDefaultVector() loads ProggyForever.
+Calling io.Fonts->AddFontDefaultBitmap() loads ProggyClean.
+Calling io.Fonts->AddFontDefault() selects one based on the expected default font size (when `style.FontSizeBase * style.FontScaleMain * style.FontSizeDpi >= 15` we use ProggyForever).
+
+You may also load external .TTF/.OTF files, see instructions on this page.
 In the [misc/fonts/](https://github.com/ocornut/imgui/tree/master/misc/fonts) folder you can find a few suggested fonts, provided as a convenience.
 
 **Also read the FAQ:** https://www.dearimgui.com/faq (there is a Fonts section!)
@@ -89,7 +99,10 @@ See [#8465](https://github.com/ocornut/imgui/issues/8465) for more details.
 
 ## How should I handle DPI in my application?
 
-See [FAQ entry](https://github.com/ocornut/imgui/blob/master/docs/FAQ.md#q-how-should-i-handle-dpi-in-my-application).
+Since 1.92, with an updated backend, you can set `style.FontScaleDpi = your_content_scale;` to scale all fonts.
+<BR>You can call  `style.ScaleAllSizes(xxx)` at init time or every frame at the beginning of your main loop to scale sizes/paddings.
+<BR>Since 1.92, with an updated backend, macOS style pixel/backing style scale is automatically handled.
+<BR>See [FAQ entry](https://github.com/ocornut/imgui/blob/master/docs/FAQ.md#q-how-should-i-handle-dpi-in-my-application) for more details.
 
 ##### [Return to Index](#index)
 
@@ -97,10 +110,22 @@ See [FAQ entry](https://github.com/ocornut/imgui/blob/master/docs/FAQ.md#q-how-s
 
 ## Fonts Loading Instructions
 
+**Select base size**
+```cpp
+ImGuiStyle& style = ImGui::GetStyle();
+style.FontSizeBase = 20.0f;
+```
+
 **Load default font:**
 ```cpp
 ImGuiIO& io = ImGui::GetIO();
-io.Fonts->AddFontDefault();
+io.Fonts->AddFontDefaultVector();  // Load embedded scalable font.
+```
+```cpp
+io.Fonts->AddFontDefaultBitmap();  // Load embedded bitmap font (legacy).
+```
+```cpp
+io.Fonts->AddFontDefault();        // Load embedded font (legacy: auto-selected between the two above).
 ```
 
 **Load .TTF/.OTF file with:**
@@ -145,7 +170,7 @@ ImFont* font = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, &config);
 🆕 **Since 1.92, with an up to date backend: specifying glyph ranges is unnecessary.**
 ```cpp
 // Load a first font
-ImFont* font = io.Fonts->AddFontDefault();
+ImFont* font = io.Fonts->AddFontDefaultVector();
 ImFontConfig config;
 config.MergeMode = true;
 io.Fonts->AddFontFromFileTTF("DroidSans.ttf", 0.0f, &config);           // Merge into first font to add e.g. Asian characters
@@ -202,7 +227,7 @@ if (ImGui::Button(u8"ロード"))
 {
     // do stuff
 }
-ImGui::InputText("string", buf, IM_ARRAYSIZE(buf));
+ImGui::InputText("string", buf, IM_COUNTOF(buf));
 ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
 ```
 
@@ -228,6 +253,7 @@ ImFontConfig font_cfg;
 font_cfg.FontDataOwnedByAtlas = false;
 ImFont* font = io.Fonts->AddFontFromMemoryTTF(data, data_size, size_pixels, &font_cfg);
 ```
+IMPORTANT: Since 1.92, when using `FontDataOwnedByAtlas = false`, font data needs to available until `atlas->RemoveFont()`, or more typically until a shutdown of the owning context or font atlas. It was not immediately noticeable in 1.92.0 due to a bug in handling `FontDataOwnedByAtlas = false`, which was fixed in 1.92.6.
 
 ##### [Return to Index](#index)
 
@@ -268,7 +294,7 @@ Example Setup:
 // Merge icons into default tool font
 #include "IconsFontAwesome.h"
 ImGuiIO& io = ImGui::GetIO();
-io.Fonts->AddFontDefault();
+io.Fonts->AddFontDefaultVector();
 ImFontConfig config;
 config.MergeMode = true;
 config.GlyphMinAdvanceX = 13.0f; // Use if you want to make the icon monospaced
@@ -425,7 +451,7 @@ As an alternative to rendering colorful glyphs using imgui_freetype with `ImGuiF
 #### Pseudo-code:
 ```cpp
 // Add font, then register two custom 13x13 rectangles mapped to glyph 'a' and 'b' of this font
-ImFont* font = io.Fonts->AddFontDefault();
+ImFont* font = io.Fonts->AddFontDefaultVector();
 int rect_ids[2];
 rect_ids[0] = io.Fonts->AddCustomRectFontGlyph(font, 'a', 13, 13, 13+1);
 rect_ids[1] = io.Fonts->AddCustomRectFontGlyph(font, 'b', 13, 13, 13+1);
@@ -438,7 +464,7 @@ unsigned char* tex_pixels = nullptr;
 int tex_width, tex_height;
 io.Fonts->GetTexDataAsRGBA32(&tex_pixels, &tex_width, &tex_height);
 
-for (int rect_n = 0; rect_n < IM_ARRAYSIZE(rect_ids); rect_n++)
+for (int rect_n = 0; rect_n < IM_COUNTOF(rect_ids); rect_n++)
     if (const ImTextureRect* rect = io.Fonts->GetCustomRect(rect_ids[rect_n]))
     {
         // Fill the custom rectangle with red pixels (in reality you would draw/copy your bitmap data here!)
@@ -538,7 +564,20 @@ You can use the `UTF-8 Encoding viewer` in `Metrics/Debugger` to verify the cont
 
 ## Credits/Licenses For Fonts Included In Repository
 
-Some fonts files are available in the `misc/fonts/` folder:
+Embedded in source code:
+
+**ProggyClean.ttf**, by Tristan Grimmer
+<br>MIT License
+<br>(recommended loading setting: Size = 13.0, GlyphOffset.y = +1, PixelSnapH = true)
+<br>https://github.com/bluescan/proggyfonts
+
+**ProggyForever.ttf**, by Disco Hello, Tristan Grimmer
+<BR>MIT License
+<BR>https://github.com/ocornut/proggyforever
+
+Extra fonts files are available in the `misc/fonts/` folder.
+Compared to 2014 when they were first introduced, we now have better font support and we embed ProggyForever.
+I believe all the files here are unnecessary nowadays. You can find font yourself. They might eventually be removed.
 
 **Roboto-Medium.ttf**, by Christian Robetson
 <br>Apache License 2.0
@@ -553,15 +592,10 @@ Some fonts files are available in the `misc/fonts/` folder:
 <br>Apache License 2.0
 <br>https://www.fontsquirrel.com/fonts/droid-sans
 
-**ProggyClean.ttf**, by Tristan Grimmer
-<br>MIT License
-<br>(recommended loading setting: Size = 13.0, GlyphOffset.y = +1)
-<br>http://www.proggyfonts.net/
-
 **ProggyTiny.ttf**, by Tristan Grimmer
 <br>MIT License
 <br>(recommended loading setting: Size = 10.0, GlyphOffset.y = +1)
-<br>http://www.proggyfonts.net/
+<br>https://github.com/bluescan/proggyfonts
 
 **Karla-Regular.ttf**, by Jonathan Pinhorn
 <br>SIL OPEN FONT LICENSE Version 1.1
@@ -589,12 +623,8 @@ Some fonts files are available in the `misc/fonts/` folder:
 
 <img width="1172" height="715" alt="image" src="https://github.com/user-attachments/assets/c9702534-4877-41c9-ae0d-252933c26ced" />
 
-Pixel Perfect:
-- Proggy Fonts, by Tristan Grimmer http://www.proggyfonts.net or http://upperboundsinteractive.com/fonts.php
-- Sweet16, Sweet16 Mono, by Martin Sedlak (Latin + Supplemental + Extended A) https://github.com/kmar/Sweet16Font (also include an .inl file to use directly in dear imgui.)
-
-Regular:
-- ProggyVector if you want the old school Dear ImGui font to scale: https://github.com/bluescan/proggyfonts
+- Proggy Fonts, by Tristan Grimmer https://github.com/bluescan/proggyfonts
+- Sweet16, Sweet16 Mono, by Martin Sedlak (Latin + Supplemental + Extended A) https://github.com/kmar/Sweet16Font
 - Google Noto Mono Fonts: https://www.google.com/get/noto/
 - Typefaces for source code beautification: https://github.com/chrissimpkins/codeface
 - Programmation fonts: http://s9w.github.io/font_compare/

docs/README.md

@@ -39,10 +39,12 @@ Dear ImGui is particularly suited to integration in game engines (for tooling),
 
 ### Usage
 
-**The core of Dear ImGui is self-contained within a few platform-agnostic files** which you can easily compile in your application/engine. They are all the files in the root folder of the repository (imgui*.cpp, imgui*.h). **No specific build process is required**. You can add the .cpp files into your existing project.
+**The core of Dear ImGui is self-contained within a few platform-agnostic files** which you can easily compile in your application/engine. They are all the files in the root folder of the repository (`imgui*.cpp`, `imgui*.h`). **No specific build process is required**: you can add all files into your existing project.
 
 **Backends for a variety of graphics API and rendering platforms** are provided in the [backends/](https://github.com/ocornut/imgui/tree/master/backends) folder, along with example applications in the [examples/](https://github.com/ocornut/imgui/tree/master/examples) folder. You may also create your own backend. Anywhere where you can render textured triangles, you can render Dear ImGui.
 
+C++20 users wishing to use a module may the use [stripe2933/imgui-module](https://github.com/stripe2933/imgui-module) third-party extension.
+
 See the [Getting Started & Integration](#getting-started--integration) section of this document for more details.
 
 After Dear ImGui is set up in your application, you can use it from \_anywhere\_ in your program loop:
@@ -50,11 +52,11 @@ After Dear ImGui is set up in your application, you can use it from \_anywhere\_
 ImGui::Text("Hello, world %d", 123);
 if (ImGui::Button("Save"))
     MySaveFunction();
-ImGui::InputText("string", buf, IM_ARRAYSIZE(buf));
+ImGui::InputText("string", buf, IM_COUNTOF(buf));
 ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
 ```
-![sample code output (dark, segoeui font, freetype)](https://user-images.githubusercontent.com/8225057/191050833-b7ecf528-bfae-4a9f-ac1b-f3d83437a2f4.png)
-![sample code output (light, segoeui font, freetype)](https://user-images.githubusercontent.com/8225057/191050838-8742efd4-504d-4334-a9a2-e756d15bc2ab.png)
+<img width="412" height="236" alt="sample code output (dark)" src="https://github.com/user-attachments/assets/32b838df-6378-498b-84a8-9a79ee6264a7" />
+<img width="412" height="236" alt="sample code output (light)" src="https://github.com/user-attachments/assets/f075e2b0-98de-4be8-acb4-99ba0c9966cd" />
 
 ```cpp
 // Create a window called "My First Tool", with a menu bar.
@@ -88,7 +90,7 @@ for (int n = 0; n < 50; n++)
 ImGui::EndChild();
 ImGui::End();
 ```
-![my_first_tool_v188](https://user-images.githubusercontent.com/8225057/191055698-690a5651-458f-4856-b5a9-e8cc95c543e2.gif)
+![my_first_tool_v192 6](https://github.com/user-attachments/assets/6c76658c-302f-403b-af26-d517e2bfb0d4)
 
 Dear ImGui allows you to **create elaborate tools** as well as very short-lived ones. On the extreme side of short-livedness: using the Edit&Continue (hot code reload) feature of modern compilers you can add a few widgets to tweak variables while your application is running, and remove the code a minute later! Dear ImGui is not just for tweaking values. You can use it to trace a running algorithm by just emitting text commands. You can use it along with your own reflection data to browse your dataset live. You can use it to expose the internals of a subsystem in your engine, to create a logger, an inspection tool, a profiler, a debugger, an entire game-making editor/framework, etc.
 
@@ -108,11 +110,23 @@ Reading the changelogs is a good way to keep up to date with the things Dear ImG
 ### Demo
 
 Calling the `ImGui::ShowDemoWindow()` function will create a demo window showcasing a variety of features and examples. The code is always available for reference in `imgui_demo.cpp`. 
-- [Web version of the demo](https://pthom.github.io/imgui_manual_online/manual/imgui_manual.html) courtesy of [@pthom](https://github.com/pthom).
-- [Screenshot of the demo](https://raw.githubusercontent.com/wiki/ocornut/imgui/web/v167/v167-misc.png).
+- [imgui_explorer](https://pthom.github.io/imgui_explorer): Web version of the demo w/ source code browser, courtesy of [@pthom](https://github.com/pthom).
 
 You should be able to build the examples from sources. If you don't, let us know! If you want to have a quick look at some Dear ImGui features, you can download Windows binaries of the demo app here:
-- [imgui-demo-binaries-20250625.zip](https://www.dearimgui.com/binaries/imgui-demo-binaries-20250625.zip) (Windows, 1.92.0, built 2025/06/25, master) or [older binaries](https://www.dearimgui.com/binaries).
+- [imgui-demo-binaries-20260225.zip](https://www.dearimgui.com/binaries/imgui-demo-binaries-20260225.zip) (Windows, 1.92.6, built 2026/02/25, master) or [older binaries](https://www.dearimgui.com/binaries).
+
+### Gallery
+
+Examples projects using Dear ImGui: [Tracy](https://github.com/wolfpld/tracy) (profiler), [ImHex](https://github.com/WerWolv/ImHex) (hex editor/data analysis), [RemedyBG](https://remedybg.itch.io/remedybg) (debugger) and [hundreds of others](https://github.com/ocornut/imgui/wiki/Software-using-Dear-ImGui).
+
+For more user-submitted screenshots of projects using Dear ImGui, check out the [Gallery Threads](https://github.com/ocornut/imgui/issues?q=label%3Agallery)!
+
+For a list of third-party widgets and extensions, check out the [Useful Extensions/Widgets](https://github.com/ocornut/imgui/wiki/Useful-Extensions) wiki page.
+
+|  |  |
+|--|--|
+| Custom engine [erhe](https://github.com/tksuoran/erhe) (docking branch)<BR>[![erhe](https://user-images.githubusercontent.com/8225057/190203358-6988b846-0686-480e-8663-1311fbd18abd.jpg)](https://user-images.githubusercontent.com/994606/147875067-a848991e-2ad2-4fd3-bf71-4aeb8a547bcf.png) | Custom engine for [Wonder Boy: The Dragon's Trap](http://www.TheDragonsTrap.com) (2017)<BR>[![the dragon's trap](https://user-images.githubusercontent.com/8225057/190203379-57fcb80e-4aec-4fec-959e-17ddd3cd71e5.jpg)](https://cloud.githubusercontent.com/assets/8225057/20628927/33e14cac-b329-11e6-80f6-9524e93b048a.png) |
+| Custom engine (untitled)<BR>[![editor white](https://user-images.githubusercontent.com/8225057/190203393-c5ac9f22-b900-4d1e-bfeb-6027c63e3d92.jpg)](https://raw.githubusercontent.com/wiki/ocornut/imgui/web/v160/editor_white.png) | Tracy Profiler ([github](https://github.com/wolfpld/tracy))<BR>[![tracy profiler](https://user-images.githubusercontent.com/8225057/190203401-7b595f6e-607c-44d3-97ea-4c2673244dfb.jpg)](https://raw.githubusercontent.com/wiki/ocornut/imgui/web/v176/tracy_profiler.png) |
 
 ### Getting Started & Integration
 
@@ -137,23 +151,12 @@ Officially maintained backends (in repository):
 - Many bindings are auto-generated (by good old [cimgui](https://github.com/cimgui/cimgui) or our newer [dear_bindings](https://github.com/dearimgui/dear_bindings)), you can use their metadata output to generate bindings for other languages.
 
 [Useful Extensions/Widgets](https://github.com/ocornut/imgui/wiki/Useful-Extensions) wiki page:
-- Automation/testing, Text editors, node editors, timeline editors, plotting, software renderers, remote network access, memory editors, gizmos, etc. Notable and well supported extensions include [ImPlot](https://github.com/epezent/implot) and [Dear ImGui Test Engine](https://github.com/ocornut/imgui_test_engine).
+
+[![Useful extensions thumbnails](https://github.com/user-attachments/assets/e6b0aa7c-bf53-41c5-ac69-bea3098b1dee)](https://github.com/ocornut/imgui/wiki/Useful-Extensions) 
+- Automation/testing, Text editors, node editors, timeline editors, plotting, software renderers, remote network access, memory editors, gizmos, etc. Notable and well supported extensions include [ImPlot](https://github.com/epezent/implot), [ImPlot3d](https://github.com/brenocq/implot3d) and [Dear ImGui Test Engine](https://github.com/ocornut/imgui_test_engine).
 
 Also see [Wiki](https://github.com/ocornut/imgui/wiki) for more links and ideas.
 
-### Gallery
-
-Examples projects using Dear ImGui: [Tracy](https://github.com/wolfpld/tracy) (profiler), [ImHex](https://github.com/WerWolv/ImHex) (hex editor/data analysis), [RemedyBG](https://remedybg.itch.io/remedybg) (debugger) and [hundreds of others](https://github.com/ocornut/imgui/wiki/Software-using-Dear-ImGui).
-
-For more user-submitted screenshots of projects using Dear ImGui, check out the [Gallery Threads](https://github.com/ocornut/imgui/issues?q=label%3Agallery)!
-
-For a list of third-party widgets and extensions, check out the [Useful Extensions/Widgets](https://github.com/ocornut/imgui/wiki/Useful-Extensions) wiki page.
-
-|  |  |
-|--|--|
-| Custom engine [erhe](https://github.com/tksuoran/erhe) (docking branch)<BR>[![erhe](https://user-images.githubusercontent.com/8225057/190203358-6988b846-0686-480e-8663-1311fbd18abd.jpg)](https://user-images.githubusercontent.com/994606/147875067-a848991e-2ad2-4fd3-bf71-4aeb8a547bcf.png) | Custom engine for [Wonder Boy: The Dragon's Trap](http://www.TheDragonsTrap.com) (2017)<BR>[![the dragon's trap](https://user-images.githubusercontent.com/8225057/190203379-57fcb80e-4aec-4fec-959e-17ddd3cd71e5.jpg)](https://cloud.githubusercontent.com/assets/8225057/20628927/33e14cac-b329-11e6-80f6-9524e93b048a.png) |
-| Custom engine (untitled)<BR>[![editor white](https://user-images.githubusercontent.com/8225057/190203393-c5ac9f22-b900-4d1e-bfeb-6027c63e3d92.jpg)](https://raw.githubusercontent.com/wiki/ocornut/imgui/web/v160/editor_white.png) | Tracy Profiler ([github](https://github.com/wolfpld/tracy))<BR>[![tracy profiler](https://user-images.githubusercontent.com/8225057/190203401-7b595f6e-607c-44d3-97ea-4c2673244dfb.jpg)](https://raw.githubusercontent.com/wiki/ocornut/imgui/web/v176/tracy_profiler.png) |
-
 ### Support, Frequently Asked Questions (FAQ)
 
 See: [Frequently Asked Questions (FAQ)](https://github.com/ocornut/imgui/blob/master/docs/FAQ.md) where common questions are answered.
@@ -207,7 +210,7 @@ Dear ImGui is using software and services provided free of charge for open sourc
 Credits
 -------
 
-Developed by [Omar Cornut](https://www.miracleworld.net) and every direct or indirect [contributors](https://github.com/ocornut/imgui/graphs/contributors) to the GitHub. The early version of this library was developed with the support of [Media Molecule](https://www.mediamolecule.com) and first used internally on the game [Tearaway](https://tearaway.mediamolecule.com) (PS Vita).
+Developed by [Omar Cornut](https://www.miracleworld.net) and every direct or indirect [contributors](https://github.com/ocornut/imgui/graphs/contributors) to the GitHub. The early version of this library was developed with the support of [Media Molecule](https://www.mediamolecule.com) and first used internally on the game [Tearaway](https://youtu.be/w0oxBviRGlU) (PS Vita).
 
 Recurring contributors include Rokas Kupstys [@rokups](https://github.com/rokups) (2020-2022): a good portion of work on automation system and regression tests now available in [Dear ImGui Test Engine](https://github.com/ocornut/imgui_test_engine).
 
@@ -215,7 +218,8 @@ Maintenance/support contracts, sponsoring invoices and other B2B transactions ar
 
 Omar: "I first discovered the IMGUI paradigm at [Q-Games](https://www.q-games.com) where Atman Binstock had dropped his own simple implementation in the codebase, which I spent quite some time improving and thinking about. It turned out that Atman was exposed to the concept directly by working with Casey. When I moved to Media Molecule I rewrote a new library trying to overcome the flaws and limitations of the first one I've worked with. It became this library and since then I have spent an unreasonable amount of time iterating and improving it."
 
-Embeds [ProggyClean.ttf](https://www.proggyfonts.net) font by Tristan Grimmer (MIT license).
+Embeds [ProggyClean](https://www.proggyfonts.net) font by Tristan Grimmer (MIT license).
+<br>Embeds [ProggyForever](https://github.com/ocornut/proggyforever) fonts by Disco Hello, Tristan Grimmer (MIT license).
 <br>Embeds [stb_textedit.h, stb_truetype.h, stb_rect_pack.h](https://github.com/nothings/stb/) by Sean Barrett (public domain).
 
 Inspiration, feedback, and testing for early versions: Casey Muratori, Atman Binstock, Mikko Mononen, Emmanuel Briney, Stefan Kamoda, Anton Mikhailov, Matt Willis. Special thanks to Alex Evans, Patrick Doane, Marco Koegler for kindly helping. Also thank you to everyone posting feedback, questions and patches on GitHub.

docs/TODO.txt

@@ -308,7 +308,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
 
  - examples: window minimize, maximize (#583)
  - examples: provide a zero frame-rate/idle example.
- - examples: dx11/dx12: try to use new swapchain blit models (#2970)
+ - examples: dx11/dx12: try to use new swapchain blit models (#2970, #9031)
  - backends: report it better when not able to create texture?
  - backends: glfw: could go idle when minimized? if (glfwGetWindowAttrib(window, GLFW_ICONIFIED)) { glfwWaitEvents(); continue; } // issue: DeltaTime will be super high on resume, perhaps provide a way to let impl know (#440)
  - backends: opengl: rename imgui_impl_opengl2 to impl_opengl_legacy and imgui_impl_opengl3 to imgui_impl_opengl? (#1900)

examples/README.txt

@@ -1,9 +1,12 @@
-See BACKENDS and EXAMPLES files in the docs/ folder, or on the web at: https://github.com/ocornut/imgui/tree/master/docs
+New to Dear ImGui?
+- Check out the Getting Started guide: https://github.com/ocornut/imgui/wiki/Getting-Started
+- About Backends: docs/BACKENDS.md file, or on the web: https://github.com/ocornut/imgui/blob/master/docs/BACKENDS.md
+- About Examples: docs/EXAMPLES.md file, or on the web: https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md
 
 Backends = Helper code to facilitate integration with platforms/graphics api (used by Examples + should be used by your app).
 Examples = Standalone applications showcasing integration with platforms/graphics api.
 
-Some Examples have extra README files in their respective directory, please check them too!
+A few Examples have extra README files in their respective directory, please check them too!
 
 Once Dear ImGui is running (in either examples or your own application/game/engine),
 run and refer to ImGui::ShowDemoWindow() in imgui_demo.cpp for the end-user API.

examples/example_allegro5/main.cpp

@@ -49,14 +49,16 @@ int main(int, char**)
     ImGui_ImplAllegro5_Init(display);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_android_opengl3/main.cpp

@@ -151,42 +151,45 @@ void Init(struct android_app* app)
     ImGui_ImplAndroid_Init(g_App->window);
     ImGui_ImplOpenGL3_Init("#version 300 es");
 
+    // Setup scaling
+    float main_scale = 2.0f;
+    ImGuiStyle& style = ImGui::GetStyle();
+    style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
+    style.FontScaleDpi = main_scale;        // Set initial font scale.
+
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     // - Android: The TTF files have to be placed into the assets/ directory (android/app/src/main/assets), we use our GetAssetData() helper to retrieve them.
+    //style.FontSizeBase = 20.0f;
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
 
-    // We load the default font with increased size to improve readability on many devices with "high" DPI.
-    // FIXME: Put some effort into DPI awareness.
     // Important: when calling AddFontFromMemoryTTF(), ownership of font_data is transferred by Dear ImGui by default (deleted is handled by Dear ImGui), unless we set FontDataOwnedByAtlas=false in ImFontConfig
-    ImFontConfig font_cfg;
-    font_cfg.SizePixels = 22.0f;
-    io.Fonts->AddFontDefault(&font_cfg);
-    //void* font_data;
-    //int font_data_size;
+    //void*   font_data;
+    //int     font_data_size;
     //ImFont* font;
     //font_data_size = GetAssetData("segoeui.ttf", &font_data);
-    //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size, 16.0f);
+    //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size);
     //IM_ASSERT(font != nullptr);
     //font_data_size = GetAssetData("DroidSans.ttf", &font_data);
-    //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size, 16.0f);
+    //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size);
     //IM_ASSERT(font != nullptr);
     //font_data_size = GetAssetData("Roboto-Medium.ttf", &font_data);
-    //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size, 16.0f);
+    //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size);
     //IM_ASSERT(font != nullptr);
     //font_data_size = GetAssetData("Cousine-Regular.ttf", &font_data);
-    //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size, 15.0f);
+    //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size);
     //IM_ASSERT(font != nullptr);
     //font_data_size = GetAssetData("ArialUni.ttf", &font_data);
-    //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size, 18.0f);
+    //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size);
     //IM_ASSERT(font != nullptr);
 
-    // Arbitrary scale-up
-    // FIXME: Put some effort into DPI awareness
-    ImGui::GetStyle().ScaleAllSizes(3.0f);
-
     g_Initialized = true;
 }
 

examples/example_apple_metal/main.mm

@@ -69,14 +69,16 @@
     ImGui_ImplMetal_Init(_device);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_apple_opengl2/main.mm

@@ -57,14 +57,16 @@
     ImGui_ImplOpenGL2_Init();
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
@@ -169,7 +171,7 @@
 -(NSWindow*)window
 {
     if (_window != nil)
-        return (_window);
+        return _window;
 
     NSRect viewRect = NSMakeRect(100.0, 100.0, 100.0 + 1280.0, 100 + 800.0);
 
@@ -179,7 +181,7 @@
     [_window setOpaque:YES];
     [_window makeKeyAndOrderFront:NSApp];
 
-    return (_window);
+    return _window;
 }
 
 -(void)setupMenu

examples/example_glfw_metal/main.mm

@@ -52,7 +52,7 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     id <MTLDevice> device = MTLCreateSystemDefaultDevice();
     id <MTLCommandQueue> commandQueue = [device newCommandQueue];
@@ -62,14 +62,16 @@ int main(int, char**)
     ImGui_ImplMetal_Init(device);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_glfw_opengl2/Makefile

@@ -21,6 +21,7 @@ SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui
 SOURCES += $(IMGUI_DIR)/backends/imgui_impl_glfw.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl2.cpp
 OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
 UNAME_S := $(shell uname -s)
+LINUX_GL_LIBS = -lGL
 
 CXXFLAGS = -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
 CXXFLAGS += -g -Wall -Wformat
@@ -32,7 +33,7 @@ LIBS =
 
 ifeq ($(UNAME_S), Linux) #LINUX
 	ECHO_MESSAGE = "Linux"
-	LIBS += -lGL `pkg-config --static --libs glfw3`
+	LIBS += $(LINUX_GL_LIBS) `pkg-config --static --libs glfw3`
 
 	CXXFLAGS += `pkg-config --cflags glfw3`
 	CFLAGS = $(CXXFLAGS)

examples/example_glfw_opengl2/main.cpp

@@ -61,21 +61,23 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplGlfw_InitForOpenGL(window, true);
     ImGui_ImplOpenGL2_Init();
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_glfw_opengl3/main.cpp

@@ -92,7 +92,7 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplGlfw_InitForOpenGL(window, true);
@@ -102,15 +102,17 @@ int main(int, char**)
     ImGui_ImplOpenGL3_Init(glsl_version);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     // - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_glfw_vulkan/main.cpp

@@ -54,7 +54,6 @@ static VkDescriptorPool         g_DescriptorPool = VK_NULL_HANDLE;
 static ImGui_ImplVulkanH_Window g_MainWindowData;
 static uint32_t                 g_MinImageCount = 2;
 static bool                     g_SwapChainRebuild = false;
-static VkImageUsageFlags        g_SwapChainImageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 
 static void glfw_error_callback(int error, const char* description)
 {
@@ -202,7 +201,7 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
         pool_info.maxSets = 0;
         for (VkDescriptorPoolSize& pool_size : pool_sizes)
             pool_info.maxSets += pool_size.descriptorCount;
-        pool_info.poolSizeCount = (uint32_t)IM_ARRAYSIZE(pool_sizes);
+        pool_info.poolSizeCount = (uint32_t)IM_COUNTOF(pool_sizes);
         pool_info.pPoolSizes = pool_sizes;
         err = vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool);
         check_vk_result(err);
@@ -213,11 +212,9 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
 // Your real engine/app may not use them.
 static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface, int width, int height)
 {
-    wd->Surface = surface;
-
     // Check for WSI support
     VkBool32 res;
-    vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, wd->Surface, &res);
+    vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, surface, &res);
     if (res != VK_TRUE)
     {
         fprintf(stderr, "Error no WSI support on physical device 0\n");
@@ -227,7 +224,8 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
     // Select Surface Format
     const VkFormat requestSurfaceImageFormat[] = { VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM };
     const VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
-    wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
+    wd->Surface = surface;
+    wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_COUNTOF(requestSurfaceImageFormat), requestSurfaceColorSpace);
 
     // Select Present Mode
 #ifdef APP_USE_UNLIMITED_FRAME_RATE
@@ -235,12 +233,12 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
 #else
     VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_FIFO_KHR };
 #endif
-    wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_modes[0], IM_ARRAYSIZE(present_modes));
+    wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_modes[0], IM_COUNTOF(present_modes));
     //printf("[vulkan] Selected PresentMode = %d\n", wd->PresentMode);
 
     // Create SwapChain, RenderPass, Framebuffer, etc.
     IM_ASSERT(g_MinImageCount >= 2);
-    ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount, g_SwapChainImageUsage);
+    ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount, 0);
 }
 
 static void CleanupVulkan()
@@ -257,9 +255,10 @@ static void CleanupVulkan()
     vkDestroyInstance(g_Instance, g_Allocator);
 }
 
-static void CleanupVulkanWindow()
+static void CleanupVulkanWindow(ImGui_ImplVulkanH_Window* wd)
 {
-    ImGui_ImplVulkanH_DestroyWindow(g_Instance, g_Device, &g_MainWindowData, g_Allocator);
+    ImGui_ImplVulkanH_DestroyWindow(g_Instance, g_Device, wd, g_Allocator);
+    vkDestroySurfaceKHR(g_Instance, wd->Surface, g_Allocator);
 }
 
 static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
@@ -398,7 +397,7 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplGlfw_InitForVulkan(window, true);
@@ -421,14 +420,16 @@ int main(int, char**)
     ImGui_ImplVulkan_Init(&init_info);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
@@ -457,7 +458,7 @@ int main(int, char**)
         if (fb_width > 0 && fb_height > 0 && (g_SwapChainRebuild || g_MainWindowData.Width != fb_width || g_MainWindowData.Height != fb_height))
         {
             ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount);
-            ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, fb_width, fb_height, g_MinImageCount, g_SwapChainImageUsage);
+            ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, fb_width, fb_height, g_MinImageCount, 0);
             g_MainWindowData.FrameIndex = 0;
             g_SwapChainRebuild = false;
         }
@@ -531,7 +532,7 @@ int main(int, char**)
     ImGui_ImplGlfw_Shutdown();
     ImGui::DestroyContext();
 
-    CleanupVulkanWindow();
+    CleanupVulkanWindow(&g_MainWindowData);
     CleanupVulkan();
 
     glfwDestroyWindow(window);

examples/example_glfw_wgpu/CMakeLists.txt

@@ -1,23 +1,40 @@
-# Building for desktop (WebGPU-native) with Dawn:
+# Building for desktop with Dawn:
 #  1. git clone https://github.com/google/dawn dawn
 #  2. cmake -B build -DIMGUI_DAWN_DIR=dawn
 #  3. cmake --build build
 # The resulting binary will be found at one of the following locations:
-#   * build/Debug/example_glfw_wgpu[.exe]
-#   * build/example_glfw_wgpu[.exe]
+#   * build/example_glfw_wgpu[.exe] or build/Debug/example_glfw_wgpu[.exe]
+
+# Building for desktop with WGPU-Native:
+#  1. download WGPU-Native autogenerated binary modules for your platform/compiler from: https://github.com/gfx-rs/wgpu-native/releases
+#  2. unzip the downloaded file in your_preferred_folder
+#  3. cmake -B build -DIMGUI_WGPU_DIR=your_preferred_folder  ("full path" or "relative" starting from current directory)
+#  4. cmake --build build
+# The resulting binary will be found at one of the following locations:
+#   * build/example_glfw_wgpu[.exe] or build/Debug/example_glfw_wgpu[.exe]
+
+# Building for desktop with WGVK (MUCH EASIER)
+#  1. git clone https://github.com/manuel5975p/WGVK dawn
+#  2. cmake -B build -DIMGUI_WGVK_DIR=wgvk
+#  3. cmake --build build
+# The resulting binary will be found at one of the following locations:
+#   * build/example_glfw_wgpu[.exe] or build/Debug/example_glfw_wgpu[.exe]
 
 # Building for Emscripten:
 #  1. Install Emscripten SDK following the instructions: https://emscripten.org/docs/getting_started/downloads.html
 #  2. Install Ninja build system
 #  3. emcmake cmake -G Ninja -B build
+#       (optional) -DIMGUI_EMSCRIPTEN_WEBGPU_FLAG="--use-port=path/to/emdawnwebgpu_package/emdawnwebgpu.port.py", see ReadMe.md
 #  3. cmake --build build
 #  4. emrun build/index.html
 
-cmake_minimum_required(VERSION 3.10.2)
+cmake_minimum_required(VERSION 3.22) # Dawn requires CMake >= 3.22
 project(imgui_example_glfw_wgpu C CXX)
 
+set(IMGUI_EXECUTABLE example_glfw_wgpu)
+
 if(NOT CMAKE_BUILD_TYPE)
-  set(CMAKE_BUILD_TYPE Debug CACHE STRING "" FORCE)
+    set(CMAKE_BUILD_TYPE Debug CACHE STRING "" FORCE)
 endif()
 
 set(CMAKE_CXX_STANDARD 17) # Dawn requires C++17
@@ -25,93 +42,182 @@ set(CMAKE_CXX_STANDARD 17) # Dawn requires C++17
 # Dear ImGui
 set(IMGUI_DIR ../../)
 
-# Libraries
+set(IMGUI_EXAMPLE_SOURCE_FILES
+        # Example code
+        main.cpp
+        # Dear ImGui Backend files
+        ${IMGUI_DIR}/backends/imgui_impl_glfw.cpp
+        ${IMGUI_DIR}/backends/imgui_impl_wgpu.cpp
+        # Dear ImGui files
+        ${IMGUI_DIR}/imgui.cpp
+        ${IMGUI_DIR}/imgui_draw.cpp
+        ${IMGUI_DIR}/imgui_demo.cpp
+        ${IMGUI_DIR}/imgui_tables.cpp
+        ${IMGUI_DIR}/imgui_widgets.cpp
+)
+
 if(EMSCRIPTEN)
-  if(EMSCRIPTEN_VERSION VERSION_GREATER_EQUAL "3.1.57")
-    set(IMGUI_EMSCRIPTEN_GLFW3 "--use-port=contrib.glfw3" CACHE STRING "Choose between --use-port=contrib.glfw3 and -sUSE_GLFW=3 for GLFW implementation (default to --use-port=contrib.glfw3)")
-  else()
-    # cannot use contrib.glfw3 prior to 3.1.57
-    set(IMGUI_EMSCRIPTEN_GLFW3 "-sUSE_GLFW=3" CACHE STRING "Use -sUSE_GLFW=3 for GLFW implementation" FORCE)
-  endif()
-  set(LIBRARIES glfw)
-  add_compile_options(-sDISABLE_EXCEPTION_CATCHING=1 -DIMGUI_DISABLE_FILE_FUNCTIONS=1)
+    if(EMSCRIPTEN_VERSION VERSION_GREATER_EQUAL "4.0.10")
+        set(IMGUI_EMSCRIPTEN_WEBGPU_FLAG "--use-port=emdawnwebgpu" CACHE STRING "Default to --use-port=emdawnwebgpu. You can override to provide your own local port.")
+    else()
+        message(FATAL_ERROR "emdawnwebgpu needs EMSCRIPTEN version >= 4.0.10")
+    endif()
+
+    if(NOT IMGUI_EMSCRIPTEN_GLFW3)
+        # Defaults to contrib.glfw3 because Emscripten version is > 3.1.57
+        set(IMGUI_EMSCRIPTEN_GLFW3 "--use-port=contrib.glfw3" CACHE STRING "Choose between --use-port=contrib.glfw3 and -sUSE_GLFW=3 for GLFW implementation (default to --use-port=contrib.glfw3)")
+    endif()
+
+    set(LIBRARIES glfw)
+    add_compile_options(-sDISABLE_EXCEPTION_CATCHING=1 -DIMGUI_DISABLE_FILE_FUNCTIONS=1)
+else() # Native/Desktop build
+
+    # Check DAWN/WGPU/WGVK directory
+    # If it's Native/Desktop build, IMGUI_DAWN_DIR or IMGUI_WGPU_DIR or IMGUI_WGVK_DIR must be specified
+    if(NOT IMGUI_DAWN_DIR AND NOT IMGUI_WGPU_DIR AND NOT IMGUI_WGVK_DIR)
+        message(FATAL_ERROR "Please specify one of IMGUI_DAWN_DIR/IMGUI_WGPU_DIR/IMGUI_WGVK_DIR base directory.")
+    endif()
+    if((IMGUI_DAWN_DIR AND (IMGUI_WGPU_DIR OR IMGUI_WGVK_DIR)) OR (IMGUI_WGPU_DIR AND IMGUI_WGVK_DIR))
+        message(FATAL_ERROR "Please specify only one of IMGUI_DAWN_DIR/IMGUI_WGPU_DIR/IMGUI_WGVK_DIR base directory.")
+    endif()
+
+    if(APPLE) # Add SDL2 module to get Surface, with libs and file property for MacOS build
+        set_source_files_properties(${IMGUI_DIR}/backends/imgui_impl_wgpu.cpp PROPERTIES COMPILE_FLAGS "-x objective-c++")
+        set(OS_LIBRARIES "-framework CoreFoundation -framework QuartzCore -framework Metal -framework MetalKit -framework Cocoa")
+    endif()
+    
+    find_package(glfw3 REQUIRED)
+
+    if(IMGUI_DAWN_DIR)
+        list(APPEND CMAKE_PREFIX_PATH ${IMGUI_DAWN_DIR})
+        find_package(Dawn) # Search for a Dawn installation using IMGUI_DAWN_DIR in CMAKE_PREFIX_PATH
+        if(Dawn_FOUND)
+            message("Dawn Installation has been found!")
+            set(LIBRARIES dawn::webgpu_dawn glfw ${OS_LIBRARIES})
+        else()
+            set(IMGUI_DAWN_DIR CACHE PATH "Path to Dawn repository")
+
+            option(DAWN_FETCH_DEPENDENCIES "Use fetch_dawn_dependencies.py as an alternative to using depot_tools" ON)
+            set(DAWN_BUILD_MONOLITHIC_LIBRARY "STATIC" CACHE STRING "Build monolithic library: SHARED, STATIC, or OFF.")
+
+            option(DAWN_USE_GLFW OFF) # disable builtin GLFW in DAWN when we use SDL2 / SDL3
+
+            # Dawn builds many things by default - disable things we don't need
+            option(DAWN_BUILD_SAMPLES "Enables building Dawn's samples" OFF)
+            option(TINT_BUILD_CMD_TOOLS "Build the Tint command line tools" OFF)
+            option(TINT_BUILD_DOCS "Build documentation" OFF)
+            option(TINT_BUILD_TESTS "Build tests" OFF)
+            if(NOT APPLE)
+                option(TINT_BUILD_MSL_WRITER "Build the MSL output writer" OFF)
+            endif()
+            if(WIN32)
+                option(DAWN_FORCE_SYSTEM_COMPONENT_LOAD "Allow system component fallback" ON)
+                option(TINT_BUILD_SPV_READER "Build the SPIR-V input reader" OFF)
+                option(TINT_BUILD_WGSL_READER "Build the WGSL input reader" ON)
+                option(TINT_BUILD_GLSL_WRITER "Build the GLSL output writer" OFF)
+                option(TINT_BUILD_GLSL_VALIDATOR "Build the GLSL output validator" OFF)
+                option(TINT_BUILD_SPV_WRITER "Build the SPIR-V output writer" ON)
+                option(TINT_BUILD_WGSL_WRITER "Build the WGSL output writer" ON)
+            endif()
+            # check if WAYLAND is the current Session Type and enable DAWN_USE_WAYLAND Wayland option @compile time
+            # You can override this using: cmake -DDAWN_USE_WAYLAND=X (X = ON | OFF)
+            if(LINUX)
+                if($ENV{XDG_SESSION_TYPE} MATCHES wayland)
+                    option(DAWN_USE_WAYLAND "Enable support for Wayland surface" ON)
+                endif()
+            endif()
+
+            add_subdirectory("${IMGUI_DAWN_DIR}" "${CMAKE_CURRENT_BINARY_DIR}/dawn" EXCLUDE_FROM_ALL)
+
+            set(LIBRARIES webgpu_dawn glfw)
+         endif()
+    endif()
+
+    if(IMGUI_WGPU_DIR)
+        set(WGPU_NATIVE_LIB_DIR ${IMGUI_WGPU_DIR}/lib)
+        find_library(WGPU_LIBRARY NAMES libwgpu_native.a wgpu_native.lib wgpu_native HINTS ${WGPU_NATIVE_LIB_DIR} REQUIRED)
+        if(WIN32)
+            set(OS_LIBRARIES d3dcompiler ws2_32 userenv bcrypt ntdll opengl32 Propsys RuntimeObject)
+        elseif(UNIX AND NOT APPLE)
+            set(OS_LIBRARIES "-lm -ldl")
+        endif()
+
+        set(LIBRARIES glfw ${WGPU_LIBRARY} ${OS_LIBRARIES})
+    endif()
+
+    if(IMGUI_WGVK_DIR)
+    endif()
+endif()
+
+add_executable(${IMGUI_EXECUTABLE} ${IMGUI_EXAMPLE_SOURCE_FILES})
+
+target_include_directories(${IMGUI_EXECUTABLE} PUBLIC
+        ${IMGUI_DIR}
+        ${IMGUI_DIR}/backends
+)
+
+target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_EXAMPLE_GLFW_WGPU")
+
+# compiler option only for IMGUI_EXAMPLE_SOURCE_FILES
+if (MSVC)
+    target_compile_options(${IMGUI_EXECUTABLE} PUBLIC /W4) # warning level 4
 else()
-  # Dawn wgpu desktop
-  set(DAWN_FETCH_DEPENDENCIES ON)
-  set(IMGUI_DAWN_DIR CACHE PATH "Path to Dawn repository")
-  if (NOT IMGUI_DAWN_DIR)
-    message(FATAL_ERROR "Please specify the Dawn repository by setting IMGUI_DAWN_DIR")
-  endif()
-
-  option(DAWN_FETCH_DEPENDENCIES "Use fetch_dawn_dependencies.py as an alternative to using depot_tools" ON)
-
-  # Dawn builds many things by default - disable things we don't need
-  option(DAWN_BUILD_SAMPLES "Enables building Dawn's samples" OFF)
-  option(TINT_BUILD_CMD_TOOLS "Build the Tint command line tools" OFF)
-  option(TINT_BUILD_DOCS "Build documentation" OFF)
-  option(TINT_BUILD_TESTS "Build tests" OFF)
-  if (NOT APPLE)
-    option(TINT_BUILD_MSL_WRITER "Build the MSL output writer" OFF)
-  endif()
-  if(WIN32)
-    option(TINT_BUILD_SPV_READER "Build the SPIR-V input reader" OFF)
-    option(TINT_BUILD_WGSL_READER "Build the WGSL input reader" ON)
-    option(TINT_BUILD_GLSL_WRITER "Build the GLSL output writer" OFF)
-    option(TINT_BUILD_GLSL_VALIDATOR "Build the GLSL output validator" OFF)
-    option(TINT_BUILD_SPV_WRITER "Build the SPIR-V output writer" OFF)
-    option(TINT_BUILD_WGSL_WRITER "Build the WGSL output writer" ON)
-  endif()
-
-  add_subdirectory("${IMGUI_DAWN_DIR}" "${CMAKE_CURRENT_BINARY_DIR}/dawn" EXCLUDE_FROM_ALL)
-
-  set(LIBRARIES webgpu_dawn webgpu_cpp webgpu_glfw glfw)
+    target_compile_options(${IMGUI_EXECUTABLE} PUBLIC -Wall) # -Wextra -Wpedantic
 endif()
 
-add_executable(example_glfw_wgpu
-  main.cpp
-  # backend files
-  ${IMGUI_DIR}/backends/imgui_impl_glfw.cpp
-  ${IMGUI_DIR}/backends/imgui_impl_wgpu.cpp
-  # Dear ImGui files
-  ${IMGUI_DIR}/imgui.cpp
-  ${IMGUI_DIR}/imgui_draw.cpp
-  ${IMGUI_DIR}/imgui_demo.cpp
-  ${IMGUI_DIR}/imgui_tables.cpp
-  ${IMGUI_DIR}/imgui_widgets.cpp
-)
-IF(NOT EMSCRIPTEN)
-  target_compile_definitions(example_glfw_wgpu PUBLIC
-    "IMGUI_IMPL_WEBGPU_BACKEND_DAWN"
-  )
-endif()
-target_include_directories(example_glfw_wgpu PUBLIC
-  ${IMGUI_DIR}
-  ${IMGUI_DIR}/backends
-)
+# In this example IMGUI_IMPL_WEBGPU_BACKEND_DAWN / IMGUI_IMPL_WEBGPU_BACKEND_WGPU internal define is set according to:
+#   EMSCRIPTEN: by used FLAG
+#     --use-port=emdawnwebgpu --> IMGUI_IMPL_WEBGPU_BACKEND_DAWN defined
+#   NATIVE: by used SDK installation directory
+#     if IMGUI_DAWN_DIR is valid --> IMGUI_IMPL_WEBGPU_BACKEND_DAWN defined
+#     if IMGUI_WGPU_DIR is valid --> IMGUI_IMPL_WEBGPU_BACKEND_WGPU defined
 
-target_link_libraries(example_glfw_wgpu PUBLIC ${LIBRARIES})
+if(NOT EMSCRIPTEN) # WegGPU-Native settings
+    # Set IMGUI_IMPL_WEBGPU_BACKEND_XXXX based on the SDK (directory) used
+    if(IMGUI_DAWN_DIR)
+        target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_IMPL_WEBGPU_BACKEND_DAWN")
+        if(NOT Dawn_FOUND)
+            target_link_libraries(${IMGUI_EXECUTABLE} INTERFACE webgpu_cpp)
+        endif()
+    endif()
+    if(IMGUI_WGPU_DIR)
+        target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_IMPL_WEBGPU_BACKEND_WGPU")
+        target_include_directories(${IMGUI_EXECUTABLE} PUBLIC ${IMGUI_WGPU_DIR}/include)
+    endif()
+    if(IMGUI_WGVK_DIR)
+        target_sources(${IMGUI_EXECUTABLE} PRIVATE ${IMGUI_WGVK_DIR}/src/wgvk.c)
+        target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_IMPL_WEBGPU_BACKEND_WGVK")
+        target_include_directories(${IMGUI_EXECUTABLE} PUBLIC ${IMGUI_WGVK_DIR}/include)
+        if (MSVC)
+           target_compile_options(${IMGUI_EXECUTABLE} PUBLIC /std:clatest /experimental:c11atomics)
+        endif()
+    endif()
 
-# Emscripten settings
-if(EMSCRIPTEN)
-  if("${IMGUI_EMSCRIPTEN_GLFW3}" STREQUAL "--use-port=contrib.glfw3")
-    target_compile_options(example_glfw_wgpu PUBLIC
-        "${IMGUI_EMSCRIPTEN_GLFW3}"
+    target_link_libraries(${IMGUI_EXECUTABLE} PUBLIC ${LIBRARIES})
+
+else() # Emscripten settings
+    set(CMAKE_EXECUTABLE_SUFFIX ".html")
+
+    if("${IMGUI_EMSCRIPTEN_GLFW3}" STREQUAL "--use-port=contrib.glfw3")
+        target_compile_options(${IMGUI_EXECUTABLE} PUBLIC "${IMGUI_EMSCRIPTEN_GLFW3}")
+    endif()
+    message(STATUS "Using ${IMGUI_EMSCRIPTEN_GLFW3} GLFW implementation")
+
+    target_compile_options(${IMGUI_EXECUTABLE} PUBLIC "${IMGUI_EMSCRIPTEN_WEBGPU_FLAG}")
+    target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_IMPL_WEBGPU_BACKEND_DAWN")
+    message(STATUS "Using ${IMGUI_EMSCRIPTEN_WEBGPU_FLAG} WebGPU implementation")
+
+    target_link_options(${IMGUI_EXECUTABLE} PRIVATE
+            "${IMGUI_EMSCRIPTEN_WEBGPU_FLAG}"
+            "${IMGUI_EMSCRIPTEN_GLFW3}"
+            "-sWASM=1"
+            "-sASYNCIFY=1"
+            "-sALLOW_MEMORY_GROWTH=1"
+            "-sNO_EXIT_RUNTIME=0"
+            "-sASSERTIONS=1"
+            "-sDISABLE_EXCEPTION_CATCHING=1"
+            "-sNO_FILESYSTEM=1"
+            "--shell-file=${CMAKE_CURRENT_LIST_DIR}/../libs/emscripten/shell_minimal.html"
     )
-  endif()
-  message(STATUS "Using ${IMGUI_EMSCRIPTEN_GLFW3} GLFW implementation")
-  target_link_options(example_glfw_wgpu PRIVATE
-    "-sUSE_WEBGPU=1"
-    "${IMGUI_EMSCRIPTEN_GLFW3}"
-    "-sWASM=1"
-    "-sALLOW_MEMORY_GROWTH=1"
-    "-sNO_EXIT_RUNTIME=0"
-    "-sASSERTIONS=1"
-    "-sDISABLE_EXCEPTION_CATCHING=1"
-    "-sNO_FILESYSTEM=1"
-  )
-  set_target_properties(example_glfw_wgpu PROPERTIES OUTPUT_NAME "index")
-  # copy our custom index.html to build directory
-  add_custom_command(TARGET example_glfw_wgpu POST_BUILD
-    COMMAND ${CMAKE_COMMAND} -E copy_if_different "${CMAKE_CURRENT_LIST_DIR}/web/index.html" $<TARGET_FILE_DIR:example_glfw_wgpu>
-  )
+    set_target_properties(${IMGUI_EXECUTABLE} PROPERTIES OUTPUT_NAME "index")
 endif()

examples/example_glfw_wgpu/Makefile.emscripten

@@ -6,8 +6,8 @@
 # This Makefile assumes you have loaded emscripten's environment.
 # (On Windows, you may need to execute emsdk_env.bat or encmdprompt.bat ahead)
 #
-# Running `make` will produce three files:
-#  - web/index.html (current stored in the repository)
+# Running `make -f Makefile.emscripten` will produce three files:
+#  - web/index.html
 #  - web/index.js
 #  - web/index.wasm
 #
@@ -16,11 +16,11 @@
 CC = emcc
 CXX = em++
 WEB_DIR = web
-EXE = $(WEB_DIR)/index.js
+EXE = $(WEB_DIR)/index.html
 IMGUI_DIR = ../..
 SOURCES = main.cpp
-SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
 SOURCES += $(IMGUI_DIR)/backends/imgui_impl_glfw.cpp $(IMGUI_DIR)/backends/imgui_impl_wgpu.cpp
+SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
 OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
 UNAME_S := $(shell uname -s)
 CPPFLAGS =
@@ -34,8 +34,15 @@ EMS =
 # ("EMS" options gets added to both CPPFLAGS and LDFLAGS, whereas some options are for linker only)
 # Note: For glfw, we use emscripten-glfw port (contrib.glfw3) instead of (-s USE_GLFW=3) to get a better support for High DPI displays.
 EMS += -s DISABLE_EXCEPTION_CATCHING=1 --use-port=contrib.glfw3
-LDFLAGS += -s USE_WEBGPU=1
-LDFLAGS += -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -s ASSERTIONS=1
+LDFLAGS += -s WASM=1
+LDFLAGS += -s ALLOW_MEMORY_GROWTH=1
+LDFLAGS += -s ASYNCIFY=1
+LDFLAGS += -s NO_EXIT_RUNTIME=0
+LDFLAGS += -s ASSERTIONS=1
+
+# Using Dawn-based WebGPU port (requires Emscripten >= 4.0.10)
+EMS += --use-port=emdawnwebgpu
+LDFLAGS += --use-port=emdawnwebgpu
 
 # Build as single file (binary text encoded in .html file)
 #LDFLAGS += -sSINGLE_FILE
@@ -60,7 +67,7 @@ endif
 CPPFLAGS += -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
 #CPPFLAGS += -g
 CPPFLAGS += -Wall -Wformat -Os $(EMS)
-#LDFLAGS += --shell-file shell_minimal.html
+LDFLAGS += --shell-file ../libs/emscripten/shell_minimal.html
 LDFLAGS += $(EMS)
 
 ##---------------------------------------------------------------------

examples/example_glfw_wgpu/README.md

@@ -1,4 +1,141 @@
-## How to Build
+## How to Build     
+
+
+---
+
+### Using CMake
+#### Building for desktop (WebGPU-native) with Google Dawn:
+ 1. `git clone https://github.com/google/dawn dawn`
+ 2. `cmake -B build -DIMGUI_DAWN_DIR=dawn`
+ 3. `cmake --build build`
+The resulting binary will be found at one of the following locations:
+  * build/Debug/example_glfw_wgpu[.exe]
+  * build/example_glfw_wgpu[.exe]
+
+#### Building for desktop (WebGPU-Native) with WGPU:
+ 1. download WGPU-Native autogenerated binary modules for your platform/compiler from: https://github.com/gfx-rs/wgpu-native/releases
+ 2. unzip the downloaded file in `your_preferred_folder`
+ 3. `cmake -B build -DIMGUI_WGPU_DIR=your_preferred_folder`  ("full path" or "relative" starting from current directory)
+ 4. `cmake --build build`
+The resulting binary will be found at one of the following locations:
+  * build/Debug/example_glfw_wgpu[.exe]
+  * build/example_glfw_wgpu[.exe]
+
+#### Building for Emscripten:
+ 1. Install Emscripten SDK following the instructions: https://emscripten.org/docs/getting_started/downloads.html
+ 2. Install Ninja build system
+ 3. `emcmake cmake -G Ninja -B build`
+    - (optional) `-DIMGUI_EMSCRIPTEN_WEBGPU_FLAG="--use-port=path/to/emdawnwebgpu_package/emdawnwebgpu.port.py"`, see below
+ 4. `cmake --build build`
+
+#### Sync Emscripten with latest Google Dawn:
+If you want to sync Emscripten with latest DAWN release it's necessary to download the `port-emdawnwgpu-package` (released daily by Google) here:
+https://github.com/google/dawn/releases
+Unpack it in your preferred folder and to replace the step 3 with: 
+
+3. `emcmake cmake -DIMGUI_EMSCRIPTEN_WEBGPU_FLAG="--use-port=path/to/emdawnwebgpu_package/emdawnwebgpu.port.py" -G Ninja -B build`
+
+**N.B.**
+For the WASM code produced by Emscripten to work correctly, it will also be necessary to have the "corresponding" (or newer) version of Google Canary (nightly build for developers) that includes the latest changes
+
+
+---
+
+### CMake by step
+
+#### Generate Dawn Native:
+
+- `cmake -G Ninja -DIMGUI_DAWN_DIR=path_to_sdk_dir -B where_to_build_dir`
+   - Using `IMGUI_DAWN_DIR` set `IMGUI_IMPL_WEBGPU_BACKEND_DAWN` compiler define 
+
+#### Generate WGPU Native:
+
+- `cmake -G Ninja -DIMGUI_WGPU_DIR=path_to_sdk_dir -B where_to_build_dir`
+
+   - Using `IMGUI_WGPU_DIR` set `IMGUI_IMPL_WEBGPU_BACKEND_WGPU` compiler define 
+
+#### Generate Emscripten:
+
+- `emcmake cmake -G Ninja -B where_to_build_dir`\
+CMake checks the EMSCRIPEN version then:
+   - if EMS >= 4.0.10 uses `--use-port=emdawnwebgpu` flag to build  
+      - it set `IMGUI_IMPL_WEBGPU_BACKEND_DAWN` compiler define 
+   - if EMS < 4.0.10 the build aborts (`-sUSE_WEBGPU=1` is no longer supported by our examples and our WGPU backend)
+
+#### Generate Emscripten using external WebGPU library (emdawnwebgpu_pkg)
+
+- `emcmake cmake -G Ninja -DIMGUI_EMSCRIPTEN_WEBGPU_FLAG="--use-port=path_to_emdawnwebgpu_pkg" -B where_to_build_dir`
+   - it set `IMGUI_IMPL_WEBGPU_BACKEND_DAWN` compiler define 
+   - *To use external WebGPU library it's necessary to have EMS >= 4.0.10 or the minimum requirements specified by the package:*
+      - https://github.com/google/dawn/releases 
+
+#### Build time
+
+Once the procedure for the specific builder is generated, the build command is **always the same**:
+
+- Build using CMake
+   - `cmake --build where_to_build_dir`
+      - It will use selected builder to build the example.
+
+- Build explicitly:
+   - `cd where_to_build_dir`
+   - `ninja` 
+      - This is the builder chosen during the generation phase  
+
+---
+
+### CMake useful options
+#### Generator types (alternative to **ninja** builder):
+- `-G Ninja` to build with __ninja__ builder
+- `-G "Unix Makefiles"` to build with __make__ builder
+- `-G "Visual Studio 17 2022" -A x64` to create a VS 2022 solution (.sln) file, Windows only 
+   - **Native build only**
+   - Not **officially** supported to build Google Dawn
+
+Example:
+- using **make** instead **ninja**:
+   - `cmake -G "Unix Makefiles" -DIMGUI_DAWN_DIR=path_to_sdk_dir -B where_to_build_dir`
+
+**Syntax is case sensitive and the "" are necessary in case of spaces between words*
+
+#### Directories
+- The directory path can be absolute or relative (starting from the current directory)
+- It's necessary to use different `where_to_build_dir` for different CMake generations
+
+
+#### Build type
+The default build type is **Debug**
+It is possible to use a different build type using:
+- `-DCMAKE_BUILD_TYPE=Release`
+- `-DCMAKE_BUILD_TYPE=MinSizeRel`
+- `-DCMAKE_BUILD_TYPE=RelWithDebInfo`
+
+Example:
+- building **Release**:
+   - `cmake -G ninja -DIMGUI_WGPU_DIR=path_to_sdk_dir -DCMAKE_BUILD_TYPE=Release -B where_to_build_dir ` 
+
+#### GLFW / SDL2 / SDL3 includes, libraries, search paths and package manager
+
+Includes and libraries, by default, are searched in system/compiler paths (environment variables): you can add the path to your development tools to the environment variables without having to modify the `CMakeLists.txt` file.
+- e.g. CLang search in path specified from the following environment variables: 
+    - include files: CPATH, C_INCLUDE_PATH, CPLUS_INCLUDE_PATH
+    - library files: LIBRARY_PATH
+
+If you are using a package manager (**vcpkg** / **conan** / ... ) you need/can to specify it, adding to cmake command:
+- `-DCMAKE_TOOLCHAIN_FILE=path/to/package_manager.cmake`
+          
+Examples:
+
+- using **vcpkg** package manager it's necessary adding:
+   - `-DCMAKE_TOOLCHAIN_FILE=<vcpkg_root_dir>/scripts/buildsystems/vcpkg.cmake`
+
+- full cmake command using **vcpkg** package manager:
+   - `cmake -G Ninja -DIMGUI_DAWN_DIR=path_to_sdk_dir -DCMAKE_TOOLCHAIN_FILE=<vcpkg_root_dir>/scripts/buildsystems/vcpkg.cmake -B where_to_build_dir`
+
+---
+
+
+### Using makefile 
 
 - You need to install Emscripten from https://emscripten.org/docs/getting_started/downloads.html, and have the environment variables set, as described in https://emscripten.org/docs/getting_started/downloads.html#installation-instructions
 
@@ -10,6 +147,8 @@
 
 - Requires recent Emscripten as WGPU is still a work-in-progress API.
 
+---
+
 ## How to Run
 
 To run on a local machine:

examples/example_glfw_wgpu/main.cpp

@@ -12,50 +12,44 @@
 #include "imgui_impl_glfw.h"
 #include "imgui_impl_wgpu.h"
 #include <stdio.h>
+#include <stdlib.h>
 #include <GLFW/glfw3.h>
 
 // This example can also compile and run with Emscripten! See 'Makefile.emscripten' for details.
 #ifdef __EMSCRIPTEN__
 #include <emscripten.h>
 #include <emscripten/html5.h>
-#include <emscripten/html5_webgpu.h>
 #include "../libs/emscripten/emscripten_mainloop_stub.h"
-#else
-#include <webgpu/webgpu_glfw.h>
 #endif
+
 #include <webgpu/webgpu.h>
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
 #include <webgpu/webgpu_cpp.h>
+#endif
 
 // Data
-static WGPUInstance      wgpu_instance = nullptr;
-static WGPUDevice        wgpu_device = nullptr;
-static WGPUSurface       wgpu_surface = nullptr;
-static WGPUTextureFormat wgpu_preferred_fmt = WGPUTextureFormat_RGBA8Unorm;
-static WGPUSwapChain     wgpu_swap_chain = nullptr;
-static int               wgpu_surface_width = 1280;
-static int               wgpu_surface_height = 800;
+static WGPUInstance             wgpu_instance = nullptr;
+static WGPUDevice               wgpu_device = nullptr;
+static WGPUSurface              wgpu_surface = nullptr;
+static WGPUQueue                wgpu_queue = nullptr;
+static WGPUSurfaceConfiguration wgpu_surface_configuration = {};
+static int                      wgpu_surface_width = 1280;
+static int                      wgpu_surface_height = 800;
 
 // Forward declarations
 static bool InitWGPU(GLFWwindow* window);
-static void ResizeSurface(int width, int height);
+WGPUSurface CreateWGPUSurface(const WGPUInstance& instance, GLFWwindow* window);
 
 static void glfw_error_callback(int error, const char* description)
 {
     printf("GLFW Error %d: %s\n", error, description);
 }
 
-static void wgpu_error_callback(WGPUErrorType error_type, const char* message, void*)
+static void ResizeSurface(int width, int height)
 {
-    const char* error_type_lbl = "";
-    switch (error_type)
-    {
-    case WGPUErrorType_Validation:  error_type_lbl = "Validation"; break;
-    case WGPUErrorType_OutOfMemory: error_type_lbl = "Out of memory"; break;
-    case WGPUErrorType_Unknown:     error_type_lbl = "Unknown"; break;
-    case WGPUErrorType_DeviceLost:  error_type_lbl = "Device lost"; break;
-    default:                        error_type_lbl = "Unknown";
-    }
-    printf("%s error: %s\n", error_type_lbl, message);
+    wgpu_surface_configuration.width = wgpu_surface_width = width;
+    wgpu_surface_configuration.height = wgpu_surface_height = height;
+    wgpuSurfaceConfigure(wgpu_surface, &wgpu_surface_configuration);
 }
 
 // Main code
@@ -71,8 +65,8 @@ int main(int, char**)
 
     // Create window
     float main_scale = ImGui_ImplGlfw_GetContentScaleForMonitor(glfwGetPrimaryMonitor()); // Valid on GLFW 3.3+ only
-    wgpu_surface_width *= main_scale;
-    wgpu_surface_height *= main_scale;
+    wgpu_surface_width = (int)(wgpu_surface_width * main_scale);
+    wgpu_surface_height = (int)(wgpu_surface_height * main_scale);
     GLFWwindow* window = glfwCreateWindow(wgpu_surface_width, wgpu_surface_height, "Dear ImGui GLFW+WebGPU example", nullptr, nullptr);
     if (window == nullptr)
         return 1;
@@ -84,7 +78,7 @@ int main(int, char**)
         glfwTerminate();
         return 1;
     }
-    ResizeSurface(wgpu_surface_width, wgpu_surface_height);
+
     glfwShowWindow(window);
 
     // Setup Dear ImGui context
@@ -101,7 +95,7 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplGlfw_InitForOther(window, true);
@@ -111,20 +105,22 @@ int main(int, char**)
     ImGui_ImplWGPU_InitInfo init_info;
     init_info.Device = wgpu_device;
     init_info.NumFramesInFlight = 3;
-    init_info.RenderTargetFormat = wgpu_preferred_fmt;
+    init_info.RenderTargetFormat = wgpu_surface_configuration.format;
     init_info.DepthStencilFormat = WGPUTextureFormat_Undefined;
     ImGui_ImplWGPU_Init(&init_info);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     // - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
 #ifndef IMGUI_DISABLE_FILE_FUNCTIONS
     //io.Fonts->AddFontFromFileTTF("fonts/segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("fonts/DroidSans.ttf");
@@ -165,10 +161,23 @@ int main(int, char**)
         int width, height;
         glfwGetFramebufferSize((GLFWwindow*)window, &width, &height);
         if (width != wgpu_surface_width || height != wgpu_surface_height)
-        {
-            ImGui_ImplWGPU_InvalidateDeviceObjects();
             ResizeSurface(width, height);
-            ImGui_ImplWGPU_CreateDeviceObjects();
+
+        // Check surface status for error. If texture is not optimal, try to reconfigure the surface.
+        WGPUSurfaceTexture surface_texture;
+        wgpuSurfaceGetCurrentTexture(wgpu_surface, &surface_texture);
+        if (ImGui_ImplWGPU_IsSurfaceStatusError(surface_texture.status))
+        {
+            fprintf(stderr, "Unrecoverable Surface Texture status=%#.8x\n", surface_texture.status);
+            abort();
+        }
+        if (ImGui_ImplWGPU_IsSurfaceStatusSubOptimal(surface_texture.status))
+        {
+            if (surface_texture.texture)
+                wgpuTextureRelease(surface_texture.texture);
+            if (width > 0 && height > 0)
+                ResizeSurface(width, height);
+            continue;
         }
 
         // Start the Dear ImGui frame
@@ -216,17 +225,21 @@ int main(int, char**)
         // Rendering
         ImGui::Render();
 
-#ifndef __EMSCRIPTEN__
-        // Tick needs to be called in Dawn to display validation errors
-        wgpuDeviceTick(wgpu_device);
-#endif
+        WGPUTextureViewDescriptor view_desc = {};
+        view_desc.format = wgpu_surface_configuration.format;
+        view_desc.dimension = WGPUTextureViewDimension_2D ;
+        view_desc.mipLevelCount = WGPU_MIP_LEVEL_COUNT_UNDEFINED;
+        view_desc.arrayLayerCount = WGPU_ARRAY_LAYER_COUNT_UNDEFINED;
+        view_desc.aspect = WGPUTextureAspect_All;
+
+        WGPUTextureView texture_view = wgpuTextureCreateView(surface_texture.texture, &view_desc);
 
         WGPURenderPassColorAttachment color_attachments = {};
         color_attachments.depthSlice = WGPU_DEPTH_SLICE_UNDEFINED;
         color_attachments.loadOp = WGPULoadOp_Clear;
         color_attachments.storeOp = WGPUStoreOp_Store;
         color_attachments.clearValue = { clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w };
-        color_attachments.view = wgpuSwapChainGetCurrentTextureView(wgpu_swap_chain);
+        color_attachments.view = texture_view;
 
         WGPURenderPassDescriptor render_pass_desc = {};
         render_pass_desc.colorAttachmentCount = 1;
@@ -242,14 +255,16 @@ int main(int, char**)
 
         WGPUCommandBufferDescriptor cmd_buffer_desc = {};
         WGPUCommandBuffer cmd_buffer = wgpuCommandEncoderFinish(encoder, &cmd_buffer_desc);
-        WGPUQueue wgpu_queue = wgpuDeviceGetQueue(wgpu_device);
         wgpuQueueSubmit(wgpu_queue, 1, &cmd_buffer);
 
 #ifndef __EMSCRIPTEN__
-        wgpuSwapChainPresent(wgpu_swap_chain);
+        wgpuSurfacePresent(wgpu_surface);
+        // Tick needs to be called in Dawn to display validation errors
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+        wgpuDeviceTick(wgpu_device);
 #endif
-
-        wgpuTextureViewRelease(color_attachments.view);
+#endif
+        wgpuTextureViewRelease(texture_view);
         wgpuRenderPassEncoderRelease(pass);
         wgpuCommandEncoderRelease(encoder);
         wgpuCommandBufferRelease(cmd_buffer);
@@ -263,93 +278,282 @@ int main(int, char**)
     ImGui_ImplGlfw_Shutdown();
     ImGui::DestroyContext();
 
+    wgpuSurfaceUnconfigure(wgpu_surface);
+    wgpuSurfaceRelease(wgpu_surface);
+    wgpuQueueRelease(wgpu_queue);
+    wgpuDeviceRelease(wgpu_device);
+    wgpuInstanceRelease(wgpu_instance);
+
     glfwDestroyWindow(window);
     glfwTerminate();
 
     return 0;
 }
 
-#ifndef __EMSCRIPTEN__
-static WGPUAdapter RequestAdapter(WGPUInstance instance)
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+static WGPUAdapter RequestAdapter(wgpu::Instance& instance)
 {
-    auto onAdapterRequestEnded = [](WGPURequestAdapterStatus status, WGPUAdapter adapter, const char* message, void* pUserData)
+    wgpu::Adapter acquired_adapter;
+    wgpu::RequestAdapterOptions adapter_options;
+    auto onRequestAdapter = [&](wgpu::RequestAdapterStatus status, wgpu::Adapter adapter, wgpu::StringView message)
     {
-        if (status == WGPURequestAdapterStatus_Success)
-            *(WGPUAdapter*)(pUserData) = adapter;
-        else
-            printf("Could not get WebGPU adapter: %s\n", message);
-};
-    WGPUAdapter adapter;
-    wgpuInstanceRequestAdapter(instance, nullptr, onAdapterRequestEnded, (void*)&adapter);
-    return adapter;
-}
-
-static WGPUDevice RequestDevice(WGPUAdapter& adapter)
-{
-    auto onDeviceRequestEnded = [](WGPURequestDeviceStatus status, WGPUDevice device, const char* message, void* pUserData)
-    {
-        if (status == WGPURequestDeviceStatus_Success)
-            *(WGPUDevice*)(pUserData) = device;
-        else
-            printf("Could not get WebGPU device: %s\n", message);
+        if (status != wgpu::RequestAdapterStatus::Success)
+        {
+            printf("Failed to get an adapter: %s\n", message.data);
+            return;
+        }
+        acquired_adapter = std::move(adapter);
     };
-    WGPUDevice device;
-    wgpuAdapterRequestDevice(adapter, nullptr, onDeviceRequestEnded, (void*)&device);
-    return device;
+
+    // Synchronously (wait until) acquire Adapter
+    wgpu::Future waitAdapterFunc { instance.RequestAdapter(&adapter_options, wgpu::CallbackMode::WaitAnyOnly, onRequestAdapter) };
+    wgpu::WaitStatus waitStatusAdapter = instance.WaitAny(waitAdapterFunc, UINT64_MAX);
+    IM_ASSERT(acquired_adapter != nullptr && waitStatusAdapter == wgpu::WaitStatus::Success && "Error on Adapter request");
+    return acquired_adapter.MoveToCHandle();
 }
-#endif
 
-static bool InitWGPU(GLFWwindow* window)
+static WGPUDevice RequestDevice(wgpu::Instance& instance, wgpu::Adapter& adapter)
 {
-    wgpu::Instance instance = wgpuCreateInstance(nullptr);
+    // Set device callback functions
+    wgpu::DeviceDescriptor device_desc;
+    device_desc.SetDeviceLostCallback(wgpu::CallbackMode::AllowSpontaneous,
+        [](const wgpu::Device&, wgpu::DeviceLostReason type, wgpu::StringView msg) { fprintf(stderr, "%s error: %s\n", ImGui_ImplWGPU_GetDeviceLostReasonName((WGPUDeviceLostReason)type), msg.data); }
+    );
+    device_desc.SetUncapturedErrorCallback(
+        [](const wgpu::Device&, wgpu::ErrorType type, wgpu::StringView msg) { fprintf(stderr, "%s error: %s\n", ImGui_ImplWGPU_GetErrorTypeName((WGPUErrorType)type), msg.data); }
+    );
 
-#ifdef __EMSCRIPTEN__
-    wgpu_device = emscripten_webgpu_get_device();
-    if (!wgpu_device)
-        return false;
-#else
-    WGPUAdapter adapter = RequestAdapter(instance.Get());
-    if (!adapter)
-        return false;
-    wgpu_device = RequestDevice(adapter);
-#endif
+    wgpu::Device acquired_device;
+    auto onRequestDevice = [&](wgpu::RequestDeviceStatus status, wgpu::Device local_device, wgpu::StringView message)
+    {
+        if (status != wgpu::RequestDeviceStatus::Success)
+        {
+            printf("Failed to get an device: %s\n", message.data);
+            return;
+        }
+        acquired_device = std::move(local_device);
+    };
 
+    // Synchronously (wait until) get Device
+    wgpu::Future waitDeviceFunc { adapter.RequestDevice(&device_desc, wgpu::CallbackMode::WaitAnyOnly, onRequestDevice) };
+    wgpu::WaitStatus waitStatusDevice = instance.WaitAny(waitDeviceFunc, UINT64_MAX);
+    IM_ASSERT(acquired_device != nullptr && waitStatusDevice == wgpu::WaitStatus::Success && "Error on Device request");
+    return acquired_device.MoveToCHandle();
+}
+#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
+static void handle_request_adapter(WGPURequestAdapterStatus status, WGPUAdapter adapter, WGPUStringView message, void* userdata1, void* userdata2)
+{
+    IM_UNUSED(userdata2);
+    if (status == WGPURequestAdapterStatus_Success)
+    {
+        WGPUAdapter* extAdapter = (WGPUAdapter*)userdata1;
+        *extAdapter = adapter;
+    }
+    else
+    {
+        printf("Request_adapter status=%#.8x message=%.*s\n", status, (int) message.length, message.data);
+    }
+}
+
+static void handle_request_device(WGPURequestDeviceStatus status, WGPUDevice device, WGPUStringView message, void* userdata1, void* userdata2)
+{
+    IM_UNUSED(userdata2);
+    if (status == WGPURequestDeviceStatus_Success)
+    {
+        WGPUDevice* extDevice = (WGPUDevice*)userdata1;
+        *extDevice = device;
+    }
+    else
+    {
+        printf("Request_device status=%#.8x message=%.*s\n", status, (int) message.length, message.data);
+    }
+}
+
+static WGPUAdapter RequestAdapter(WGPUInstance& instance)
+{
+    WGPURequestAdapterOptions adapter_options = {};
+
+    WGPUAdapter local_adapter = nullptr;
+    WGPURequestAdapterCallbackInfo adapterCallbackInfo = {};
+    adapterCallbackInfo.mode = WGPUCallbackMode_WaitAnyOnly;
+    adapterCallbackInfo.callback = handle_request_adapter;
+    adapterCallbackInfo.userdata1 = &local_adapter;
+
+    WGPUFuture future = wgpuInstanceRequestAdapter(instance, &adapter_options, adapterCallbackInfo);
+    WGPUFutureWaitInfo waitInfo = { future, false };
+    wgpuInstanceWaitAny(instance, 1, &waitInfo, ~0ull);
+    IM_ASSERT(local_adapter && "Error on Adapter request");
+    return local_adapter;
+}
+
+static WGPUDevice RequestDevice(WGPUInstance& instance, WGPUAdapter& adapter)
+{
+    WGPUDevice local_device = nullptr;
+    WGPURequestDeviceCallbackInfo deviceCallbackInfo = {};
+    deviceCallbackInfo.mode = WGPUCallbackMode_WaitAnyOnly;
+    deviceCallbackInfo.callback = handle_request_device;
+    deviceCallbackInfo.userdata1 = &local_device;
+    WGPUFuture future = wgpuAdapterRequestDevice(adapter, nullptr, deviceCallbackInfo);
+    WGPUFutureWaitInfo waitInfo = { future, false };
+    wgpuInstanceWaitAny(instance, 1, &waitInfo, ~0ull);
+    IM_ASSERT(local_device && "Error on Device request");
+    return local_device;
+}
+#endif // IMGUI_IMPL_WEBGPU_BACKEND_WGPU
+
+bool InitWGPU(GLFWwindow* window)
+{
+    WGPUTextureFormat preferred_fmt = WGPUTextureFormat_Undefined;  // acquired from SurfaceCapabilities
+
+    // Google DAWN backend: Adapter and Device acquisition, Surface creation
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+    wgpu::InstanceDescriptor instance_desc = {};
+    static constexpr wgpu::InstanceFeatureName timedWaitAny = wgpu::InstanceFeatureName::TimedWaitAny;
+    instance_desc.requiredFeatureCount = 1;
+    instance_desc.requiredFeatures = &timedWaitAny;
+    wgpu::Instance instance = wgpu::CreateInstance(&instance_desc);
+
+    wgpu::Adapter adapter = RequestAdapter(instance);
+    ImGui_ImplWGPU_DebugPrintAdapterInfo(adapter.Get());
+
+    wgpu_device = RequestDevice(instance, adapter);
+
+    // Create the surface.
 #ifdef __EMSCRIPTEN__
-    wgpu::SurfaceDescriptorFromCanvasHTMLSelector canvas_desc = {};
+    wgpu::EmscriptenSurfaceSourceCanvasHTMLSelector canvas_desc = {};
     canvas_desc.selector = "#canvas";
+
     wgpu::SurfaceDescriptor surface_desc = {};
     surface_desc.nextInChain = &canvas_desc;
-    wgpu::Surface surface = instance.CreateSurface(&surface_desc);
-
-    wgpu::Adapter adapter = {};
-    wgpu_preferred_fmt = (WGPUTextureFormat)surface.GetPreferredFormat(adapter);
+    wgpu_surface = instance.CreateSurface(&surface_desc).MoveToCHandle();
 #else
-    wgpu::Surface surface = wgpu::glfw::CreateSurfaceForWindow(instance, window);
-    if (!surface)
-        return false;
-    wgpu_preferred_fmt = WGPUTextureFormat_BGRA8Unorm;
+    wgpu_surface = CreateWGPUSurface(instance.Get(), window);
 #endif
+    if (!wgpu_surface)
+        return false;
 
     // Moving Dawn objects into WGPU handles
     wgpu_instance = instance.MoveToCHandle();
-    wgpu_surface = surface.MoveToCHandle();
 
-    wgpuDeviceSetUncapturedErrorCallback(wgpu_device, wgpu_error_callback, nullptr);
+    WGPUSurfaceCapabilities surface_capabilities = {};
+    wgpuSurfaceGetCapabilities(wgpu_surface, adapter.Get(), &surface_capabilities);
+
+    preferred_fmt = surface_capabilities.formats[0];
+
+    // WGPU backend: Adapter and Device acquisition, Surface creation
+#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
+    WGPUInstanceDescriptor instanceDesc = {};
+    WGPUInstanceFeatureName timedWaitAny = WGPUInstanceFeatureName_TimedWaitAny;
+    instanceDesc.requiredFeatureCount = 1;
+    instanceDesc.requiredFeatures = &timedWaitAny;
+    wgpu_instance = wgpuCreateInstance(&instanceDesc);
+
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
+    wgpuSetLogCallback(
+        [](WGPULogLevel level, WGPUStringView msg, void* userdata) { fprintf(stderr, "%s: %.*s\n", ImGui_ImplWGPU_GetLogLevelName(level), (int)msg.length, msg.data); }, nullptr
+    );
+    wgpuSetLogLevel(WGPULogLevel_Warn);
+#endif
+
+    WGPUAdapter adapter = RequestAdapter(wgpu_instance);
+    ImGui_ImplWGPU_DebugPrintAdapterInfo(adapter);
+
+    wgpu_device = RequestDevice(wgpu_instance, adapter);
+
+    // Create the surface.
+    wgpu_surface = CreateWGPUSurface(wgpu_instance, window);
+    if (!wgpu_surface)
+        return false;
+
+    WGPUSurfaceCapabilities surface_capabilities = {};
+    wgpuSurfaceGetCapabilities(wgpu_surface, adapter, &surface_capabilities);
+
+    preferred_fmt = surface_capabilities.formats[0];
+#endif // IMGUI_IMPL_WEBGPU_BACKEND_WGPU
+
+    wgpu_surface_configuration.presentMode = WGPUPresentMode_Fifo;
+    wgpu_surface_configuration.alphaMode = WGPUCompositeAlphaMode_Auto;
+    wgpu_surface_configuration.usage = WGPUTextureUsage_RenderAttachment;
+    wgpu_surface_configuration.width = wgpu_surface_width;
+    wgpu_surface_configuration.height = wgpu_surface_height;
+    wgpu_surface_configuration.device = wgpu_device;
+    wgpu_surface_configuration.format = preferred_fmt;
+
+    wgpuSurfaceConfigure(wgpu_surface, &wgpu_surface_configuration);
+    wgpu_queue = wgpuDeviceGetQueue(wgpu_device);
 
     return true;
 }
 
-static void ResizeSurface(int width, int height)
+// GLFW helper to create a WebGPU surface, used only in WGPU-Native. DAWN-Native already has a built-in function
+// As of today (2025/10) there is no "official" support in GLFW to create a surface for WebGPU backend
+// This stub uses "low level" GLFW calls to acquire information from a specific Window Manager.
+// Currently supported platforms: Windows / Linux (X11 and Wayland) / MacOS. Not necessary nor available with EMSCRIPTEN.
+#ifndef __EMSCRIPTEN__
+
+#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__)
+#define GLFW_HAS_X11_OR_WAYLAND     1
+#else
+#define GLFW_HAS_X11_OR_WAYLAND     0
+#endif
+#ifdef _WIN32
+#undef APIENTRY
+#ifndef GLFW_EXPOSE_NATIVE_WIN32    // for glfwGetWin32Window()
+#define GLFW_EXPOSE_NATIVE_WIN32
+#endif
+#elif defined(__APPLE__)
+#ifndef GLFW_EXPOSE_NATIVE_COCOA    // for glfwGetCocoaWindow()
+#define GLFW_EXPOSE_NATIVE_COCOA
+#endif
+#elif GLFW_HAS_X11_OR_WAYLAND
+#ifndef GLFW_EXPOSE_NATIVE_X11      // for glfwGetX11Display(), glfwGetX11Window() on Freedesktop (Linux, BSD, etc.)
+#define GLFW_EXPOSE_NATIVE_X11
+#endif
+#ifndef GLFW_EXPOSE_NATIVE_WAYLAND
+#if defined(__has_include) && __has_include(<wayland-client.h>)
+#define GLFW_EXPOSE_NATIVE_WAYLAND
+#endif
+#endif
+#endif
+#include <GLFW/glfw3native.h>
+#undef Status                       // X11 headers are leaking this and also 'Success', 'Always', 'None', all used in DAWN api. Add #undef if necessary.
+
+WGPUSurface CreateWGPUSurface(const WGPUInstance& instance, GLFWwindow* window)
 {
-    if (wgpu_swap_chain)
-        wgpuSwapChainRelease(wgpu_swap_chain);
-    wgpu_surface_width = width;
-    wgpu_surface_height = height;
-    WGPUSwapChainDescriptor swap_chain_desc = {};
-    swap_chain_desc.usage = WGPUTextureUsage_RenderAttachment;
-    swap_chain_desc.format = wgpu_preferred_fmt;
-    swap_chain_desc.width = width;
-    swap_chain_desc.height = height;
-    swap_chain_desc.presentMode = WGPUPresentMode_Fifo;
-    wgpu_swap_chain = wgpuDeviceCreateSwapChain(wgpu_device, wgpu_surface, &swap_chain_desc);
+    ImGui_ImplWGPU_CreateSurfaceInfo create_info = {};
+    create_info.Instance = instance;
+#if defined(GLFW_EXPOSE_NATIVE_COCOA)
+    {
+        create_info.System = "cocoa";
+        create_info.RawWindow = (void*)glfwGetCocoaWindow(window);
+        return ImGui_ImplWGPU_CreateWGPUSurfaceHelper(&create_info);
+    }
+#elif defined(GLFW_EXPOSE_NATIVE_WAYLAND)
+    if (glfwGetPlatform() == GLFW_PLATFORM_WAYLAND)
+    {
+        create_info.System = "wayland";
+        create_info.RawDisplay = (void*)glfwGetWaylandDisplay();
+        create_info.RawSurface = (void*)glfwGetWaylandWindow(window);
+        return ImGui_ImplWGPU_CreateWGPUSurfaceHelper(&create_info);
+    }
+#elif defined(GLFW_EXPOSE_NATIVE_X11)
+    if (glfwGetPlatform() == GLFW_PLATFORM_X11)
+    {
+        create_info.System = "x11";
+        create_info.RawWindow = (void*)glfwGetX11Window(window);
+        create_info.RawDisplay = (void*)glfwGetX11Display();
+        return ImGui_ImplWGPU_CreateWGPUSurfaceHelper(&create_info);
+    }
+#elif defined(GLFW_EXPOSE_NATIVE_WIN32)
+    {
+        create_info.System = "win32";
+        create_info.RawWindow = (void*)glfwGetWin32Window(window);
+        create_info.RawInstance = (void*)::GetModuleHandle(NULL);
+        return ImGui_ImplWGPU_CreateWGPUSurfaceHelper(&create_info);
+    }
+#else
+#error "Unsupported WebGPU native platform!"
+    return nullptr;
+#endif
 }
+#endif // #ifndef __EMSCRIPTEN__

examples/example_glfw_wgpu/web/index.html

@@ -1,84 +0,0 @@
-<!doctype html>
-<html lang="en-us">
-  <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"/>
-    <title>Dear ImGui Emscripten+GLFW+WebGPU example</title>
-    <style>
-        body { margin: 0; background-color: black }
-        .emscripten {
-            position: absolute;
-            top: 0px;
-            left: 0px;
-            margin: 0px;
-            border: 0;
-            width: 100%;
-            height: 100%;
-            overflow: hidden;
-            display: block;
-            image-rendering: optimizeSpeed;
-            image-rendering: -moz-crisp-edges;
-            image-rendering: -o-crisp-edges;
-            image-rendering: -webkit-optimize-contrast;
-            image-rendering: optimize-contrast;
-            image-rendering: crisp-edges;
-            image-rendering: pixelated;
-            -ms-interpolation-mode: nearest-neighbor;
-        }
-    </style>
-  </head>
-  <body>
-    <canvas class="emscripten" id="canvas" oncontextmenu="event.preventDefault()"></canvas>
-    <script type='text/javascript'>
-      var Module;
-      (async () => {
-        Module = {
-          preRun: [],
-          postRun: [],
-          print: (function() {
-              return function(text) {
-                  text = Array.prototype.slice.call(arguments).join(' ');
-                  console.log(text);
-              };
-          })(),
-          printErr: function(text) {
-              text = Array.prototype.slice.call(arguments).join(' ');
-              console.error(text);
-          },
-          canvas: (function() {
-              var canvas = document.getElementById('canvas');
-              //canvas.addEventListener("webglcontextlost", function(e) { alert('FIXME: WebGL context lost, please reload the page'); e.preventDefault(); }, false);
-              return canvas;
-          })(),
-          setStatus: function(text) {
-              console.log("status: " + text);
-          },
-          monitorRunDependencies: function(left) {
-              // no run dependencies to log
-          }
-        };
-        window.onerror = function() {
-          console.log("onerror: " + event);
-        };
-
-      // Initialize the graphics adapter
-      {
-          if (!navigator.gpu) {
-            throw Error("WebGPU not supported.");
-          }
-
-          const adapter = await navigator.gpu.requestAdapter();
-          const device = await adapter.requestDevice();
-          Module.preinitializedWebGPUDevice = device;
-      }
-
-      {
-          const js = document.createElement('script');
-          js.async = true;
-          js.src = "index.js";
-          document.body.appendChild(js);
-      }
-      })();
-    </script>
-  </body>
-</html>

examples/example_glut_opengl2/main.cpp

@@ -78,16 +78,17 @@ int main(int argc, char** argv)
     // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
     ImGui_ImplGLUT_InstallFuncs();
 
-
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_null/example_null.vcxproj

@@ -0,0 +1,178 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
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+    <ProjectConfiguration Include="Debug|x64">
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+      <Platform>x64</Platform>
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+    <ProjectConfiguration Include="Release|Win32">
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+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
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+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{1A0BF63C-18EF-4BAE-A8DA-055481B11F5D}</ProjectGuid>
+    <RootNamespace>example_win32_directx11</RootNamespace>
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+    <UseDebugLibraries>true</UseDebugLibraries>
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+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v140</PlatformToolset>
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+  <ImportGroup Label="ExtensionSettings">
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+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
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+    <OutDir>$(ProjectDir)$(Configuration)\</OutDir>
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+    <IntDir>$(ProjectDir)$(Configuration)\</IntDir>
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <OutDir>$(ProjectDir)$(Configuration)\</OutDir>
+    <IntDir>$(ProjectDir)$(Configuration)\</IntDir>
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <OutDir>$(ProjectDir)$(Configuration)\</OutDir>
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+      <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
+    </ClCompile>
+    <Link>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AdditionalDependencies>d3d11.lib;d3dcompiler.lib;dxgi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(DXSDK_DIR)/Lib/x86;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
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+    <Link>
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+      <AdditionalDependencies>d3d11.lib;d3dcompiler.lib;dxgi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(DXSDK_DIR)/Lib/x64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
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+      <AdditionalLibraryDirectories>$(DXSDK_DIR)/Lib/x86;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <SubSystem>Console</SubSystem>
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+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
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+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <AdditionalIncludeDirectories>..\..;..\..\backends;%(AdditionalIncludeDirectories);</AdditionalIncludeDirectories>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
+      <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
+    </ClCompile>
+    <Link>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>d3d11.lib;d3dcompiler.lib;dxgi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(DXSDK_DIR)/Lib/x64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <SubSystem>Console</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\backends\imgui_impl_null.h" />
+    <ClInclude Include="..\..\imconfig.h" />
+    <ClInclude Include="..\..\imgui.h" />
+    <ClInclude Include="..\..\imgui_internal.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\backends\imgui_impl_null.cpp">
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</ExcludedFromBuild>
+    </ClCompile>
+    <ClCompile Include="..\..\imgui.cpp" />
+    <ClCompile Include="..\..\imgui_demo.cpp" />
+    <ClCompile Include="..\..\imgui_draw.cpp" />
+    <ClCompile Include="..\..\imgui_tables.cpp" />
+    <ClCompile Include="..\..\imgui_widgets.cpp" />
+    <ClCompile Include="main.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="..\..\misc\debuggers\imgui.natstepfilter" />
+    <None Include="..\..\misc\debuggers\imgui.natvis" />
+    <None Include="..\README.txt" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

examples/example_null/example_null.vcxproj.filters

@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="imgui">
+      <UniqueIdentifier>{0587d7a3-f2ce-4d56-b84f-a0005d3bfce6}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="sources">
+      <UniqueIdentifier>{08e36723-ce4f-4cff-9662-c40801cf1acf}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\imconfig.h">
+      <Filter>imgui</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\imgui.h">
+      <Filter>imgui</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\imgui_internal.h">
+      <Filter>imgui</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\backends\imgui_impl_null.h">
+      <Filter>sources</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\imgui.cpp">
+      <Filter>imgui</Filter>
+    </ClCompile>
+    <ClCompile Include="main.cpp">
+      <Filter>sources</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\imgui_demo.cpp">
+      <Filter>imgui</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\imgui_draw.cpp">
+      <Filter>imgui</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\imgui_tables.cpp">
+      <Filter>imgui</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\imgui_widgets.cpp">
+      <Filter>imgui</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\backends\imgui_impl_null.cpp">
+      <Filter>sources</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="..\README.txt" />
+    <None Include="..\..\misc\debuggers\imgui.natvis">
+      <Filter>imgui</Filter>
+    </None>
+    <None Include="..\..\misc\debuggers\imgui.natstepfilter">
+      <Filter>imgui</Filter>
+    </None>
+  </ItemGroup>
+</Project>

examples/example_null/main.cpp

@@ -4,23 +4,26 @@
 #include "imgui.h"
 #include <stdio.h>
 
+// For imgui_impl_null: use relative filename + embed implementation directly by including the .cpp file.
+// This is to simplify casual building of this example from all sorts of test scripts.
+#include "../../backends/imgui_impl_null.h"
+#include "../../backends/imgui_impl_null.cpp"
+
 int main(int, char**)
 {
     IMGUI_CHECKVERSION();
+
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO();
 
-    // Build atlas
-    //unsigned char* tex_pixels = nullptr;
-    //int tex_w, tex_h;
-    //io.Fonts->GetTexDataAsRGBA32(&tex_pixels, &tex_w, &tex_h);
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;
+    ImGui_ImplNullPlatform_Init();
+    ImGui_ImplNullRender_Init();
 
     for (int n = 0; n < 20; n++)
     {
         printf("NewFrame() %d\n", n);
-        io.DisplaySize = ImVec2(1920, 1080);
-        io.DeltaTime = 1.0f / 60.0f;
+        ImGui_ImplNullPlatform_NewFrame();
+        ImGui_ImplNullRender_NewFrame();
         ImGui::NewFrame();
 
         static float f = 0.0f;
@@ -33,6 +36,8 @@ int main(int, char**)
     }
 
     printf("DestroyContext()\n");
+    ImGui_ImplNullRender_Shutdown();
+    ImGui_ImplNullPlatform_Shutdown();
     ImGui::DestroyContext();
     return 0;
 }

examples/example_sdl2_directx11/main.cpp

@@ -83,21 +83,23 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplSDL2_InitForD3D(window);
     ImGui_ImplDX11_Init(g_pd3dDevice, g_pd3dDeviceContext);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
@@ -210,6 +212,7 @@ int main(int, char**)
 bool CreateDeviceD3D(HWND hWnd)
 {
     // Setup swap chain
+    // This is a basic setup. Optimally could use e.g. DXGI_SWAP_EFFECT_FLIP_DISCARD and handle fullscreen mode differently. See #8979 for suggestions.
     DXGI_SWAP_CHAIN_DESC sd;
     ZeroMemory(&sd, sizeof(sd));
     sd.BufferCount = 2;

examples/example_sdl2_metal/main.mm

@@ -30,14 +30,16 @@ int main(int, char**)
     //ImGui::StyleColorsLight();
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_sdl2_opengl2/main.cpp

@@ -72,21 +72,23 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplSDL2_InitForOpenGL(window, gl_context);
     ImGui_ImplOpenGL2_Init();
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_sdl2_opengl3/main.cpp

@@ -112,22 +112,24 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplSDL2_InitForOpenGL(window, gl_context);
     ImGui_ImplOpenGL3_Init(glsl_version);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     // - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_sdl2_sdlrenderer2/main.cpp

@@ -74,21 +74,23 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplSDL2_InitForSDLRenderer(window, renderer);
     ImGui_ImplSDLRenderer2_Init(renderer);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_sdl2_vulkan/main.cpp

@@ -49,7 +49,6 @@ static VkDescriptorPool         g_DescriptorPool = VK_NULL_HANDLE;
 static ImGui_ImplVulkanH_Window g_MainWindowData;
 static uint32_t                 g_MinImageCount = 2;
 static bool                     g_SwapChainRebuild = false;
-static VkImageUsageFlags        g_SwapChainImageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 
 static void check_vk_result(VkResult err)
 {
@@ -193,7 +192,7 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
         pool_info.maxSets = 0;
         for (VkDescriptorPoolSize& pool_size : pool_sizes)
             pool_info.maxSets += pool_size.descriptorCount;
-        pool_info.poolSizeCount = (uint32_t)IM_ARRAYSIZE(pool_sizes);
+        pool_info.poolSizeCount = (uint32_t)IM_COUNTOF(pool_sizes);
         pool_info.pPoolSizes = pool_sizes;
         err = vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool);
         check_vk_result(err);
@@ -204,11 +203,9 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
 // Your real engine/app may not use them.
 static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface, int width, int height)
 {
-    wd->Surface = surface;
-
     // Check for WSI support
     VkBool32 res;
-    vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, wd->Surface, &res);
+    vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, surface, &res);
     if (res != VK_TRUE)
     {
         fprintf(stderr, "Error no WSI support on physical device 0\n");
@@ -218,7 +215,8 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
     // Select Surface Format
     const VkFormat requestSurfaceImageFormat[] = { VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM };
     const VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
-    wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
+    wd->Surface = surface;
+    wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_COUNTOF(requestSurfaceImageFormat), requestSurfaceColorSpace);
 
     // Select Present Mode
 #ifdef APP_USE_UNLIMITED_FRAME_RATE
@@ -226,12 +224,12 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
 #else
     VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_FIFO_KHR };
 #endif
-    wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_modes[0], IM_ARRAYSIZE(present_modes));
+    wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_modes[0], IM_COUNTOF(present_modes));
     //printf("[vulkan] Selected PresentMode = %d\n", wd->PresentMode);
 
     // Create SwapChain, RenderPass, Framebuffer, etc.
     IM_ASSERT(g_MinImageCount >= 2);
-    ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount, g_SwapChainImageUsage);
+    ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount, 0);
 }
 
 static void CleanupVulkan()
@@ -248,9 +246,10 @@ static void CleanupVulkan()
     vkDestroyInstance(g_Instance, g_Allocator);
 }
 
-static void CleanupVulkanWindow()
+static void CleanupVulkanWindow(ImGui_ImplVulkanH_Window* wd)
 {
-    ImGui_ImplVulkanH_DestroyWindow(g_Instance, g_Device, &g_MainWindowData, g_Allocator);
+    ImGui_ImplVulkanH_DestroyWindow(g_Instance, g_Device, wd, g_Allocator);
+    vkDestroySurfaceKHR(g_Instance, wd->Surface, g_Allocator);
 }
 
 static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
@@ -404,7 +403,7 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplSDL2_InitForVulkan(window);
@@ -427,14 +426,16 @@ int main(int, char**)
     ImGui_ImplVulkan_Init(&init_info);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
@@ -477,7 +478,7 @@ int main(int, char**)
         if (fb_width > 0 && fb_height > 0 && (g_SwapChainRebuild || g_MainWindowData.Width != fb_width || g_MainWindowData.Height != fb_height))
         {
             ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount);
-            ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, fb_width, fb_height, g_MinImageCount, g_SwapChainImageUsage);
+            ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, fb_width, fb_height, g_MinImageCount, 0);
             g_MainWindowData.FrameIndex = 0;
             g_SwapChainRebuild = false;
         }
@@ -546,7 +547,7 @@ int main(int, char**)
     ImGui_ImplSDL2_Shutdown();
     ImGui::DestroyContext();
 
-    CleanupVulkanWindow();
+    CleanupVulkanWindow(&g_MainWindowData);
     CleanupVulkan();
 
     SDL_DestroyWindow(window);

examples/example_sdl2_wgpu/CMakeLists.txt

@@ -0,0 +1,214 @@
+# Building for desktop with Dawn:
+#  1. git clone https://github.com/google/dawn dawn
+#  2. cmake -B build -DIMGUI_DAWN_DIR=dawn
+#  3. cmake --build build
+# The resulting binary will be found at one of the following locations:
+#   * build/example_sdl2_wgpu[.exe] or build/Debug/example_sdl2_wgpu[.exe]
+
+# Building for desktop with WGPU-Native:
+#  1. download WGPU-Native autogenerated binary modules for your platform/compiler from: https://github.com/gfx-rs/wgpu-native/releases
+#  2. unzip the downloaded file in your_preferred_folder
+#  3. cmake -B build -DIMGUI_WGPU_DIR=your_preferred_folder  ("full path" or "relative" starting from current directory)
+#  4. cmake --build build
+# The resulting binary will be found at one of the following locations:
+#   * build/example_sdl2_wgpu[.exe] or build/Debug/example_sdl2_wgpu[.exe]
+
+# Building for desktop with WGVK (MUCH EASIER)
+#  1. git clone https://github.com/manuel5975p/WGVK dawn
+#  2. cmake -B build -DIMGUI_WGVK_DIR=wgvk
+#  3. cmake --build build
+# The resulting binary will be found at one of the following locations:
+#   * build/example_sdl2_wgpu[.exe] or build/Debug/example_sdl2_wgpu[.exe]
+
+# Building for Emscripten:
+#  1. Install Emscripten SDK following the instructions: https://emscripten.org/docs/getting_started/downloads.html
+#  2. Install Ninja build system
+#  3. emcmake cmake -G Ninja -B build
+#       (optional) -DIMGUI_EMSCRIPTEN_WEBGPU_FLAG="--use-port=path/to/emdawnwebgpu_package/emdawnwebgpu.port.py", see ReadMe.md
+#  3. cmake --build build
+#  4. emrun build/index.html
+
+cmake_minimum_required(VERSION 3.22) # Dawn requires CMake >= 3.22
+project(imgui_example_sdl2_wgpu C CXX)
+
+set(IMGUI_EXECUTABLE example_sdl2_wgpu)
+
+if(NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE Debug CACHE STRING "" FORCE)
+endif()
+
+set(CMAKE_CXX_STANDARD 17) # Dawn requires C++17
+
+# Dear ImGui
+set(IMGUI_DIR ../../)
+
+# ImGui example commons source files
+set(IMGUI_EXAMPLE_SOURCE_FILES
+        main.cpp
+        # backend files
+        ${IMGUI_DIR}/backends/imgui_impl_sdl2.cpp
+        ${IMGUI_DIR}/backends/imgui_impl_wgpu.cpp
+        # Dear ImGui files
+        ${IMGUI_DIR}/imgui.cpp
+        ${IMGUI_DIR}/imgui_draw.cpp
+        ${IMGUI_DIR}/imgui_demo.cpp
+        ${IMGUI_DIR}/imgui_tables.cpp
+        ${IMGUI_DIR}/imgui_widgets.cpp
+)
+
+if(EMSCRIPTEN)
+    if(EMSCRIPTEN_VERSION VERSION_GREATER_EQUAL "4.0.10")
+        set(IMGUI_EMSCRIPTEN_WEBGPU_FLAG "--use-port=emdawnwebgpu" CACHE STRING "Default to --use-port=emdawnwebgpu. You can override to provide your own local port.")
+    else()
+        message(FATAL_ERROR "emdawnwebgpu needs EMSCRIPTEN version >= 4.0.10")
+    endif()
+
+    add_compile_options(-sDISABLE_EXCEPTION_CATCHING=1 -DIMGUI_DISABLE_FILE_FUNCTIONS=1)
+else() # Native/Desktop build
+
+    # Check DAWN/WGPU/WGVK directory
+    # If it's Native/Desktop build, IMGUI_DAWN_DIR or IMGUI_WGPU_DIR or IMGUI_WGVK_DIR must be specified
+    if(NOT IMGUI_DAWN_DIR AND NOT IMGUI_WGPU_DIR AND NOT IMGUI_WGVK_DIR)
+        message(FATAL_ERROR "Please specify one of IMGUI_DAWN_DIR/IMGUI_WGPU_DIR/IMGUI_WGVK_DIR base directory.")
+    endif()
+    if((IMGUI_DAWN_DIR AND (IMGUI_WGPU_DIR OR IMGUI_WGVK_DIR)) OR (IMGUI_WGPU_DIR AND IMGUI_WGVK_DIR))
+        message(FATAL_ERROR "Please specify only one of IMGUI_DAWN_DIR/IMGUI_WGPU_DIR/IMGUI_WGVK_DIR base directory.")
+    endif()
+
+    if(APPLE) # Add SDL2 module to get Surface, with libs and file property for MacOS build
+        set_source_files_properties(${IMGUI_DIR}/backends/imgui_impl_wgpu.cpp PROPERTIES COMPILE_FLAGS "-x objective-c++")
+        set(OS_LIBRARIES "-framework CoreFoundation -framework QuartzCore -framework Metal -framework MetalKit -framework Cocoa")
+    endif()
+
+    find_package(SDL2 REQUIRED) # SDL_MAIN_HANDLED
+
+    if(IMGUI_DAWN_DIR)
+        list(APPEND CMAKE_PREFIX_PATH ${IMGUI_DAWN_DIR})
+        find_package(Threads) # required from Dawn installation
+        find_package(Dawn) # Search for a Dawn installation using IMGUI_DAWN_DIR in CMAKE_PREFIX_PATH
+        if(Dawn_FOUND)
+            message("Dawn Installation has been found!")
+            set(LIBRARIES dawn::webgpu_dawn ${OS_LIBRARIES})
+        else()
+            set(IMGUI_DAWN_DIR CACHE PATH "Path to Dawn repository")
+
+            option(DAWN_USE_GLFW OFF) # disable builtin GLFW in DAWN when we use SDL2 / SDL3
+
+            option(DAWN_FETCH_DEPENDENCIES "Use fetch_dawn_dependencies.py as an alternative to using depot_tools" ON)
+            set(DAWN_BUILD_MONOLITHIC_LIBRARY "STATIC" CACHE STRING "Build monolithic library: SHARED, STATIC, or OFF.")
+
+            # Dawn builds many things by default - disable things we don't need
+            option(DAWN_BUILD_SAMPLES "Enables building Dawn's samples" OFF)
+            option(TINT_BUILD_CMD_TOOLS "Build the Tint command line tools" OFF)
+            option(TINT_BUILD_DOCS "Build documentation" OFF)
+            option(TINT_BUILD_TESTS "Build tests" OFF)
+            if(NOT APPLE)
+                option(TINT_BUILD_MSL_WRITER "Build the MSL output writer" OFF)
+            endif()
+            if(WIN32)
+                option(DAWN_FORCE_SYSTEM_COMPONENT_LOAD "Allow system component fallback" ON)
+                option(TINT_BUILD_SPV_READER "Build the SPIR-V input reader" OFF)
+                option(TINT_BUILD_WGSL_READER "Build the WGSL input reader" ON)
+                option(TINT_BUILD_GLSL_WRITER "Build the GLSL output writer" OFF)
+                option(TINT_BUILD_GLSL_VALIDATOR "Build the GLSL output validator" OFF)
+                option(TINT_BUILD_SPV_WRITER "Build the SPIR-V output writer" ON)
+                option(TINT_BUILD_WGSL_WRITER "Build the WGSL output writer" ON)
+            endif()
+            # check if WAYLAND is the current Session Type and enable DAWN_USE_WAYLAND Wayland option @compile time
+            # You can override this using: cmake -DDAWN_USE_WAYLAND=X (X = ON | OFF)
+            if(LINUX)
+                if($ENV{XDG_SESSION_TYPE} MATCHES wayland)
+                    option(DAWN_USE_WAYLAND "Enable support for Wayland surface" ON)
+                endif()
+            endif()
+
+            add_subdirectory("${IMGUI_DAWN_DIR}" "${CMAKE_CURRENT_BINARY_DIR}/dawn" EXCLUDE_FROM_ALL)
+
+            set(LIBRARIES webgpu_dawn ${OS_LIBRARIES})
+        endif()
+    endif()
+
+    if(IMGUI_WGPU_DIR)
+        set(WGPU_NATIVE_LIB_DIR ${IMGUI_WGPU_DIR}/lib)
+        find_library(WGPU_LIBRARY NAMES libwgpu_native.a wgpu_native.lib wgpu_native HINTS ${WGPU_NATIVE_LIB_DIR} REQUIRED)
+        if(WIN32)
+            set(OS_LIBRARIES d3dcompiler ws2_32 userenv bcrypt ntdll opengl32 Propsys RuntimeObject)
+        elseif(UNIX AND NOT APPLE)
+            set(OS_LIBRARIES "-lm -ldl")
+        endif()
+
+        set(LIBRARIES ${WGPU_LIBRARY} ${OS_LIBRARIES})
+    endif()
+
+    if(IMGUI_WGVK_DIR)
+    endif()
+
+endif()
+
+add_executable(${IMGUI_EXECUTABLE} ${IMGUI_EXAMPLE_SOURCE_FILES})
+
+target_include_directories(${IMGUI_EXECUTABLE} PUBLIC
+        ${IMGUI_DIR}
+        ${IMGUI_DIR}/backends
+        ${SDL2_INCLUDE_DIRS}
+)
+
+target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_EXAMPLE_SDL2_WGPU")
+
+# compiler option only for IMGUI_EXAMPLE_SOURCE_FILES
+if (MSVC)
+    target_compile_options(${IMGUI_EXECUTABLE} PUBLIC /W4) # warning level 4
+else()
+    target_compile_options(${IMGUI_EXECUTABLE} PUBLIC -Wall) # -Wextra -Wpedantic
+endif()
+
+# IMGUI_IMPL_WEBGPU_BACKEND_DAWN/WGPU internal define is set according to:
+#   EMSCRIPTEN: by used FLAG
+#     --use-port=emdawnwebgpu --> IMGUI_IMPL_WEBGPU_BACKEND_DAWN enabled (+EMSCRIPTEN)
+#   NATIVE: by used SDK installation directory
+#     if IMGUI_DAWN_DIR is valid --> IMGUI_IMPL_WEBGPU_BACKEND_DAWN enabled
+#     if IMGUI_WGPU_DIR is valid --> IMGUI_IMPL_WEBGPU_BACKEND_WGPU enabled
+
+if(NOT EMSCRIPTEN) # WegGPU-Native settings
+    if(IMGUI_DAWN_DIR)
+        target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_IMPL_WEBGPU_BACKEND_DAWN")
+        if(NOT Dawn_FOUND)
+            target_link_libraries(${IMGUI_EXECUTABLE} INTERFACE webgpu_cpp)
+        endif()
+    endif()
+    if(IMGUI_WGPU_DIR)
+        target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_IMPL_WEBGPU_BACKEND_WGPU")
+        target_include_directories(${IMGUI_EXECUTABLE} PUBLIC ${IMGUI_WGPU_DIR}/include)
+    endif()
+    if(IMGUI_WGVK_DIR)
+        target_sources(${IMGUI_EXECUTABLE} PRIVATE ${IMGUI_WGVK_DIR}/src/wgvk.c)
+        target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_IMPL_WEBGPU_BACKEND_WGVK")
+        target_include_directories(${IMGUI_EXECUTABLE} PUBLIC ${IMGUI_WGVK_DIR}/include)
+        if (MSVC)
+           target_compile_options(${IMGUI_EXECUTABLE} PUBLIC /std:clatest /experimental:c11atomics)
+        endif()
+    endif()
+
+    target_link_libraries(${IMGUI_EXECUTABLE} PUBLIC ${LIBRARIES} ${SDL2_LIBRARIES})
+else() # Emscripten settings
+    set(CMAKE_EXECUTABLE_SUFFIX ".html")
+
+    target_compile_options(${IMGUI_EXECUTABLE} PUBLIC "${IMGUI_EMSCRIPTEN_WEBGPU_FLAG}")
+    target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_IMPL_WEBGPU_BACKEND_DAWN")
+    message(STATUS "Using ${IMGUI_EMSCRIPTEN_WEBGPU_FLAG} WebGPU implementation")
+
+    target_compile_options(${IMGUI_EXECUTABLE} PUBLIC "-sUSE_SDL=2")
+    target_link_options(${IMGUI_EXECUTABLE} PRIVATE
+            "${IMGUI_EMSCRIPTEN_WEBGPU_FLAG}"
+            "-sUSE_SDL=2"
+            "-sWASM=1"
+            "-sASYNCIFY=1"
+            "-sALLOW_MEMORY_GROWTH=1"
+            "-sNO_EXIT_RUNTIME=0"
+            "-sASSERTIONS=1"
+            "-sDISABLE_EXCEPTION_CATCHING=1"
+            "-sNO_FILESYSTEM=1"
+            "--shell-file=${CMAKE_CURRENT_LIST_DIR}/../libs/emscripten/shell_minimal.html"
+    )
+    set_target_properties(${IMGUI_EXECUTABLE} PROPERTIES OUTPUT_NAME "index")
+endif()

examples/example_sdl2_wgpu/Makefile.emscripten

@@ -0,0 +1,99 @@
+#
+# Makefile to use with emscripten
+# See https://emscripten.org/docs/getting_started/downloads.html
+# for installation instructions.
+#
+# This Makefile assumes you have loaded emscripten's environment.
+# (On Windows, you may need to execute emsdk_env.bat or encmdprompt.bat ahead)
+#
+# Running `make -f Makefile.emscripten` will produce three files:
+#  - web/index.html
+#  - web/index.js
+#  - web/index.wasm
+#
+# All three are needed to run the demo.
+
+CC = emcc
+CXX = em++
+WEB_DIR = web
+EXE = $(WEB_DIR)/index.html
+IMGUI_DIR = ../..
+SOURCES = main.cpp
+SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl2.cpp $(IMGUI_DIR)/backends/imgui_impl_wgpu.cpp
+SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
+OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
+UNAME_S := $(shell uname -s)
+CPPFLAGS =
+LDFLAGS =
+EMS =
+
+##---------------------------------------------------------------------
+## EMSCRIPTEN OPTIONS
+##---------------------------------------------------------------------
+
+# ("EMS" options gets added to both CPPFLAGS and LDFLAGS, whereas some options are for linker only)
+EMS += -s USE_SDL=2
+EMS += -s DISABLE_EXCEPTION_CATCHING=1
+LDFLAGS += -s WASM=1
+LDFLAGS += -s ALLOW_MEMORY_GROWTH=1
+LDFLAGS += -s ASYNCIFY=1
+LDFLAGS += -s NO_EXIT_RUNTIME=0
+LDFLAGS += -s ASSERTIONS=1
+
+# Using Dawn-based WebGPU port (requires Emscripten >= 4.0.10)
+EMS += --use-port=emdawnwebgpu
+LDFLAGS += --use-port=emdawnwebgpu
+
+# Build as single file (binary text encoded in .html file)
+#LDFLAGS += -sSINGLE_FILE
+
+# Emscripten allows preloading a file or folder to be accessible at runtime.
+# The Makefile for this example project suggests embedding the misc/fonts/ folder into our application, it will then be accessible as "/fonts"
+# See documentation for more details: https://emscripten.org/docs/porting/files/packaging_files.html
+# (Default value is 0. Set to 1 to enable file-system and include the misc/fonts/ folder as part of the build.)
+USE_FILE_SYSTEM ?= 0
+ifeq ($(USE_FILE_SYSTEM), 0)
+LDFLAGS += -s NO_FILESYSTEM=1
+CPPFLAGS += -DIMGUI_DISABLE_FILE_FUNCTIONS
+endif
+ifeq ($(USE_FILE_SYSTEM), 1)
+LDFLAGS += --no-heap-copy --preload-file ../../misc/fonts@/fonts
+endif
+
+##---------------------------------------------------------------------
+## FINAL BUILD FLAGS
+##---------------------------------------------------------------------
+
+CPPFLAGS += -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
+#CPPFLAGS += -g
+CPPFLAGS += -Wall -Wformat -Os $(EMS)
+LDFLAGS += --shell-file ../libs/emscripten/shell_minimal.html
+LDFLAGS += $(EMS)
+
+##---------------------------------------------------------------------
+## BUILD RULES
+##---------------------------------------------------------------------
+
+%.o:%.cpp
+	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $<
+
+%.o:$(IMGUI_DIR)/%.cpp
+	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $<
+
+%.o:$(IMGUI_DIR)/backends/%.cpp
+	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $<
+
+all: $(EXE)
+	@echo Build complete for $(EXE)
+
+$(WEB_DIR):
+	mkdir $@
+
+serve: all
+	python3 -m http.server -d $(WEB_DIR)
+
+$(EXE): $(OBJS) $(WEB_DIR)
+	$(CXX) -o $@ $(OBJS) $(LDFLAGS)
+
+clean:
+	rm -f $(EXE) $(OBJS) $(WEB_DIR)/*.js $(WEB_DIR)/*.wasm $(WEB_DIR)/*.wasm.pre

examples/example_sdl2_wgpu/README.md

@@ -0,0 +1,163 @@
+## How to Build     
+
+
+---
+
+### Using CMake
+#### Building for desktop (WebGPU-native) with Google Dawn:
+ 1. `git clone https://github.com/google/dawn dawn`
+ 2. `cmake -B build -DIMGUI_DAWN_DIR=dawn`
+ 3. `cmake --build build`
+The resulting binary will be found at one of the following locations:
+  * build/Debug/example_sdl2_wgpu[.exe]
+  * build/example_sdl2_wgpu[.exe]
+
+#### Building for desktop (WebGPU-Native) with WGPU:
+ 1. download WGPU-Native autogenerated binary modules for your platform/compiler from: https://github.com/gfx-rs/wgpu-native/releases
+ 2. unzip the downloaded file in `your_preferred_folder`
+ 3. `cmake -B build -DIMGUI_WGPU_DIR=your_preferred_folder`  ("full path" or "relative" starting from current directory)
+ 4. `cmake --build build`
+The resulting binary will be found at one of the following locations:
+  * build/Debug/example_sdl2_wgpu[.exe]
+  * build/example_sdl2_wgpu[.exe]
+
+#### Building for Emscripten:
+ 1. Install Emscripten SDK following the instructions: https://emscripten.org/docs/getting_started/downloads.html
+ 2. Install Ninja build system
+ 3. `emcmake cmake -G Ninja -B build`
+    - (optional) `-DIMGUI_EMSCRIPTEN_WEBGPU_FLAG="--use-port=path/to/emdawnwebgpu_package/emdawnwebgpu.port.py"`, see below
+ 4. `cmake --build build`
+
+#### Sync Emscripten with latest Google Dawn:
+If you want to sync Emscripten with latest DAWN release it's necessary to download the `port-emdawnwgpu-package` (released daily by Google) here:
+https://github.com/google/dawn/releases
+Unpack it in your preferred folder and to replace the step 3 with: 
+
+3. `emcmake cmake -DIMGUI_EMSCRIPTEN_WEBGPU_FLAG="--use-port=path/to/emdawnwebgpu_package/emdawnwebgpu.port.py" -G Ninja -B build`
+
+**N.B.**
+For the WASM code produced by Emscripten to work correctly, it will also be necessary to have the "corresponding" (or newer) version of Google Canary (nightly build for developers) that includes the latest changes
+
+
+---
+
+### CMake by step
+
+#### Generate Dawn Native:
+
+- `cmake -G Ninja -DIMGUI_DAWN_DIR=path_to_sdk_dir -B where_to_build_dir`
+   - Using `IMGUI_DAWN_DIR` set `IMGUI_IMPL_WEBGPU_BACKEND_DAWN` compiler define 
+
+#### Generate WGPU Native:
+
+- `cmake -G Ninja -DIMGUI_WGPU_DIR=path_to_sdk_dir -B where_to_build_dir`
+
+   - Using `IMGUI_WGPU_DIR` set `IMGUI_IMPL_WEBGPU_BACKEND_WGPU` compiler define 
+
+#### Generate Emscripten:
+
+- `emcmake cmake -G Ninja -B where_to_build_dir`\
+CMake checks the EMSCRIPEN version then:
+   - if EMS >= 4.0.10 uses `--use-port=emdawnwebgpu` flag to build  
+      - it set `IMGUI_IMPL_WEBGPU_BACKEND_DAWN` compiler define 
+   - if EMS < 4.0.10 the build aborts (`-sUSE_WEBGPU=1` is no longer supported by our examples and our WGPU backend)
+
+#### Generate Emscripten using external WebGPU library (emdawnwebgpu_pkg)
+
+- `emcmake cmake -G Ninja -DIMGUI_EMSCRIPTEN_WEBGPU_FLAG="--use-port=path_to_emdawnwebgpu_pkg" -B where_to_build_dir`
+   - it set `IMGUI_IMPL_WEBGPU_BACKEND_DAWN` compiler define 
+   - *To use external WebGPU library it's necessary to have EMS >= 4.0.10 or the minimum requirements specified by the package:*
+      - https://github.com/google/dawn/releases 
+
+#### Build time
+
+Once the procedure for the specific builder is generated, the build command is **always the same**:
+
+- Build using CMake
+   - `cmake --build where_to_build_dir`
+      - It will use selected builder to build the example.
+
+- Build explicitly:
+   - `cd where_to_build_dir`
+   - `ninja` 
+      - This is the builder chosen during the generation phase  
+
+---
+
+### CMake useful options
+#### Generator types (alternative to **ninja** builder):
+- `-G Ninja` to build with __ninja__ builder
+- `-G "Unix Makefiles"` to build with __make__ builder
+- `-G "Visual Studio 17 2022" -A x64` to create a VS 2022 solution (.sln) file, Windows only 
+   - **Native build only**
+   - Not **officially** supported to build Google Dawn
+
+Example:
+- using **make** instead **ninja**:
+   - `cmake -G "Unix Makefiles" -DIMGUI_DAWN_DIR=path_to_sdk_dir -B where_to_build_dir`
+
+**Syntax is case sensitive and the "" are necessary in case of spaces between words*
+
+#### Directories
+- The directory path can be absolute or relative (starting from the current directory)
+- It's necessary to use different `where_to_build_dir` for different CMake generations
+
+
+#### Build type
+The default build type is **Debug**
+It is possible to use a different build type using:
+- `-DCMAKE_BUILD_TYPE=Release`
+- `-DCMAKE_BUILD_TYPE=MinSizeRel`
+- `-DCMAKE_BUILD_TYPE=RelWithDebInfo`
+
+Example:
+- building **Release**:
+   - `cmake -G ninja -DIMGUI_WGPU_DIR=path_to_sdk_dir -DCMAKE_BUILD_TYPE=Release -B where_to_build_dir ` 
+
+#### GLFW / SDL2 / SDL3 includes, libraries, search paths and package manager
+
+Includes and libraries, by default, are searched in system/compiler paths (environment variables): you can add the path to your development tools to the environment variables without having to modify the `CMakeLists.txt` file.
+- e.g. CLang search in path specified from the following environment variables: 
+    - include files: CPATH, C_INCLUDE_PATH, CPLUS_INCLUDE_PATH
+    - library files: LIBRARY_PATH
+
+If you are using a package manager (**vcpkg** / **conan** / ... ) you need/can to specify it, adding to cmake command:
+- `-DCMAKE_TOOLCHAIN_FILE=path/to/package_manager.cmake`
+          
+Examples:
+
+- using **vcpkg** package manager it's necessary adding:
+   - `-DCMAKE_TOOLCHAIN_FILE=<vcpkg_root_dir>/scripts/buildsystems/vcpkg.cmake`
+
+- full cmake command using **vcpkg** package manager:
+   - `cmake -G Ninja -DIMGUI_DAWN_DIR=path_to_sdk_dir -DCMAKE_TOOLCHAIN_FILE=<vcpkg_root_dir>/scripts/buildsystems/vcpkg.cmake -B where_to_build_dir`
+
+---
+
+
+### Using makefile 
+
+- You need to install Emscripten from https://emscripten.org/docs/getting_started/downloads.html, and have the environment variables set, as described in https://emscripten.org/docs/getting_started/downloads.html#installation-instructions
+
+- Depending on your configuration, in Windows you may need to run `emsdk/emsdk_env.bat` in your console to access the Emscripten command-line tools.
+
+- You may also refer to our [Continuous Integration setup](https://github.com/ocornut/imgui/tree/master/.github/workflows) for Emscripten setup.
+
+- Then build using `make -f Makefile.emscripten` while in the `example_glfw_wgpu/` directory.
+
+- Requires recent Emscripten as WGPU is still a work-in-progress API.
+
+---
+
+## How to Run
+
+To run on a local machine:
+- Make sure your browse supports WGPU and it is enabled. WGPU is still WIP not enabled by default in most browser.
+- `make serve` will use Python3 to spawn a local webserver, you can then browse http://localhost:8000 to access your build.
+- Otherwise, generally you will need a local webserver:
+  - Quoting [https://emscripten.org/docs/getting_started](https://emscripten.org/docs/getting_started/Tutorial.html#generating-html):<br>
+_"Unfortunately several browsers (including Chrome, Safari, and Internet Explorer) do not support file:// [XHR](https://emscripten.org/docs/site/glossary.html#term-xhr) requests, and can’t load extra files needed by the HTML (like a .wasm file, or packaged file data as mentioned lower down). For these browsers you’ll need to serve the files using a [local webserver](https://emscripten.org/docs/getting_started/FAQ.html#faq-local-webserver) and then open http://localhost:8000/hello.html."_
+  - Emscripten SDK has a handy `emrun` command: `emrun web/example_glfw_wgpu.html --browser firefox` which will spawn a temporary local webserver (in Firefox). See https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html for details.
+  - You may use Python 3 builtin webserver: `python -m http.server -d web` (this is what `make serve` uses).
+  - You may use Python 2 builtin webserver: `cd web && python -m SimpleHTTPServer`.
+  - If you are accessing the files over a network, certain browsers, such as Firefox, will restrict Gamepad API access to secure contexts only (e.g. https only).

examples/example_sdl2_wgpu/main.cpp

@@ -0,0 +1,526 @@
+// Dear ImGui: standalone example application for using SDL2 + WebGPU
+// - Emscripten is supported for publishing on web. See https://emscripten.org.
+// - Dawn is used as a WebGPU implementation on desktop.
+
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#include "imgui.h"
+#include "imgui_impl_sdl2.h"
+#include "imgui_impl_wgpu.h"
+#include <stdio.h>
+#include <SDL.h>
+
+// This example can also compile and run with Emscripten! See 'Makefile.emscripten' for details.
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#include <emscripten/html5.h>
+#include "../libs/emscripten/emscripten_mainloop_stub.h"
+#endif
+
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+#include <webgpu/webgpu_cpp.h>
+#endif
+
+// Data
+static WGPUInstance             wgpu_instance = nullptr;
+static WGPUDevice               wgpu_device = nullptr;
+static WGPUSurface              wgpu_surface = nullptr;
+static WGPUQueue                wgpu_queue = nullptr;
+static WGPUSurfaceConfiguration wgpu_surface_configuration = {};
+static int                      wgpu_surface_width = 1280;
+static int                      wgpu_surface_height = 800;
+
+// Forward declarations
+static bool InitWGPU(SDL_Window* window);
+WGPUSurface CreateWGPUSurface(const WGPUInstance& instance, SDL_Window* window);
+
+static void ResizeSurface(int width, int height)
+{
+    wgpu_surface_configuration.width  = wgpu_surface_width  = width;
+    wgpu_surface_configuration.height = wgpu_surface_height = height;
+    wgpuSurfaceConfigure(wgpu_surface, (WGPUSurfaceConfiguration*)&wgpu_surface_configuration);
+}
+
+// Main code
+int main(int, char**)
+{
+    // Setup SDL
+    SDL_Init(SDL_INIT_VIDEO | SDL_INIT_GAMECONTROLLER);
+
+    // Create window with graphics context
+    float main_scale = ImGui_ImplSDL2_GetContentScaleForDisplay(0);
+    wgpu_surface_width = (int)(wgpu_surface_width * main_scale);
+    wgpu_surface_height = (int)(wgpu_surface_height * main_scale);
+    SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
+    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+WebGPU example", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, wgpu_surface_width, wgpu_surface_height, window_flags);
+    if (window == nullptr)
+    {
+        printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
+        return 1;
+    }
+
+    // Initialize WGPU
+    InitWGPU(window);
+
+    // Setup Dear ImGui context
+    IMGUI_CHECKVERSION();
+    ImGui::CreateContext();
+    ImGuiIO& io = ImGui::GetIO(); (void)io;
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;      // Enable Gamepad Controls
+
+    // Setup Dear ImGui style
+    ImGui::StyleColorsDark();
+    //ImGui::StyleColorsLight();
+
+    // Setup scaling
+    ImGuiStyle& style = ImGui::GetStyle();
+    style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
+
+    // Setup Platform/Renderer backends
+    ImGui_ImplSDL2_InitForOther(window);
+    ImGui_ImplWGPU_InitInfo init_info;
+    init_info.Device = wgpu_device;
+    init_info.NumFramesInFlight = 3;
+    init_info.RenderTargetFormat = wgpu_surface_configuration.format;
+    init_info.DepthStencilFormat = WGPUTextureFormat_Undefined;
+    ImGui_ImplWGPU_Init(&init_info);
+
+    // Load Fonts
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
+    // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
+    // - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
+    //style.FontSizeBase = 20.0f;
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
+#ifndef IMGUI_DISABLE_FILE_FUNCTIONS
+    //io.Fonts->AddFontFromFileTTF("fonts/segoeui.ttf");
+    //io.Fonts->AddFontFromFileTTF("fonts/DroidSans.ttf");
+    //io.Fonts->AddFontFromFileTTF("fonts/Roboto-Medium.ttf");
+    //io.Fonts->AddFontFromFileTTF("fonts/Cousine-Regular.ttf");
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("fonts/ArialUni.ttf");
+    //IM_ASSERT(font != nullptr);
+#endif
+
+    // Our state
+    bool show_demo_window = true;
+    bool show_another_window = false;
+    ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
+
+    // Main loop
+    bool done = false;
+#ifdef __EMSCRIPTEN__
+    // For an Emscripten build we are disabling file-system access, so let's not attempt to do a fopen() of the imgui.ini file.
+    // You may manually call LoadIniSettingsFromMemory() to load settings from your own storage.
+    io.IniFilename = nullptr;
+    EMSCRIPTEN_MAINLOOP_BEGIN
+#else
+    while (!done)
+#endif
+    {
+        // Poll and handle events (inputs, window resize, etc.)
+        // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
+        // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
+        // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
+        // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
+        SDL_Event event;
+        while (SDL_PollEvent(&event))
+        {
+            ImGui_ImplSDL2_ProcessEvent(&event);
+            if (event.type == SDL_QUIT)
+                done = true;
+            if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window))
+                done = true;
+        }
+
+        // React to changes in screen size
+        int width, height;
+        SDL_GetWindowSizeInPixels(window, &width, &height);
+        if (width != wgpu_surface_width || height != wgpu_surface_height)
+            ResizeSurface(width, height);
+
+        // Check surface status for error. If texture is not optimal, try to reconfigure the surface.
+        WGPUSurfaceTexture surface_texture;
+        wgpuSurfaceGetCurrentTexture(wgpu_surface, &surface_texture);
+        if (ImGui_ImplWGPU_IsSurfaceStatusError(surface_texture.status))
+        {
+            fprintf(stderr, "Unrecoverable Surface Texture status=%#.8x\n", surface_texture.status);
+            abort();
+        }
+        if (ImGui_ImplWGPU_IsSurfaceStatusSubOptimal(surface_texture.status))
+        {
+            if (surface_texture.texture)
+                wgpuTextureRelease(surface_texture.texture);
+            if (width > 0 && height > 0)
+                ResizeSurface(width, height);
+            continue;
+        }
+
+        // Start the Dear ImGui frame
+        ImGui_ImplWGPU_NewFrame();
+        ImGui_ImplSDL2_NewFrame();
+        ImGui::NewFrame();
+
+        // 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
+        if (show_demo_window)
+            ImGui::ShowDemoWindow(&show_demo_window);
+
+        // 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
+        {
+            static float f = 0.0f;
+            static int counter = 0;
+
+            ImGui::Begin("Hello, world!");                                // Create a window called "Hello, world!" and append into it.
+
+            ImGui::Text("This is some useful text.");                     // Display some text (you can use a format strings too)
+            ImGui::Checkbox("Demo Window", &show_demo_window);            // Edit bools storing our window open/close state
+            ImGui::Checkbox("Another Window", &show_another_window);
+
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);                  // Edit 1 float using a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", (float*)&clear_color);       // Edit 3 floats representing a color
+
+            if (ImGui::Button("Button"))                                  // Buttons return true when clicked (most widgets return true when edited/activated)
+                counter++;
+            ImGui::SameLine();
+            ImGui::Text("counter = %d", counter);
+
+            ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
+            ImGui::End();
+        }
+
+        // 3. Show another simple window.
+        if (show_another_window)
+        {
+            ImGui::Begin("Another Window", &show_another_window);         // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked)
+            ImGui::Text("Hello from another window!");
+            if (ImGui::Button("Close Me"))
+                show_another_window = false;
+            ImGui::End();
+        }
+
+        // Rendering
+        ImGui::Render();
+
+        WGPUTextureViewDescriptor view_desc = {};
+        view_desc.format = wgpu_surface_configuration.format;
+        view_desc.dimension = WGPUTextureViewDimension_2D;
+        view_desc.mipLevelCount = WGPU_MIP_LEVEL_COUNT_UNDEFINED;
+        view_desc.arrayLayerCount = WGPU_ARRAY_LAYER_COUNT_UNDEFINED;
+        view_desc.aspect = WGPUTextureAspect_All;
+
+        WGPUTextureView texture_view = wgpuTextureCreateView(surface_texture.texture, &view_desc);
+
+        WGPURenderPassColorAttachment color_attachments = {};
+        color_attachments.depthSlice = WGPU_DEPTH_SLICE_UNDEFINED;
+        color_attachments.loadOp = WGPULoadOp_Clear;
+        color_attachments.storeOp = WGPUStoreOp_Store;
+        color_attachments.clearValue = { clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w };
+        color_attachments.view = texture_view;
+
+        WGPURenderPassDescriptor render_pass_desc = {};
+        render_pass_desc.colorAttachmentCount = 1;
+        render_pass_desc.colorAttachments = &color_attachments;
+        render_pass_desc.depthStencilAttachment = nullptr;
+
+        WGPUCommandEncoderDescriptor enc_desc = {};
+        WGPUCommandEncoder encoder = wgpuDeviceCreateCommandEncoder(wgpu_device, &enc_desc);
+
+        WGPURenderPassEncoder pass = wgpuCommandEncoderBeginRenderPass(encoder, &render_pass_desc);
+        ImGui_ImplWGPU_RenderDrawData(ImGui::GetDrawData(), pass);
+        wgpuRenderPassEncoderEnd(pass);
+
+        WGPUCommandBufferDescriptor cmd_buffer_desc = {};
+        WGPUCommandBuffer cmd_buffer = wgpuCommandEncoderFinish(encoder, &cmd_buffer_desc);
+        wgpuQueueSubmit(wgpu_queue, 1, &cmd_buffer);
+
+#ifndef __EMSCRIPTEN__
+        wgpuSurfacePresent(wgpu_surface);
+        // Tick needs to be called in Dawn to display validation errors
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+        wgpuDeviceTick(wgpu_device);
+#endif
+#endif
+        wgpuTextureViewRelease(texture_view);
+        wgpuRenderPassEncoderRelease(pass);
+        wgpuCommandEncoderRelease(encoder);
+        wgpuCommandBufferRelease(cmd_buffer);
+    }
+#ifdef __EMSCRIPTEN__
+    EMSCRIPTEN_MAINLOOP_END;
+#endif
+
+    // Cleanup
+    ImGui_ImplWGPU_Shutdown();
+    ImGui_ImplSDL2_Shutdown();
+    ImGui::DestroyContext();
+
+    wgpuSurfaceUnconfigure(wgpu_surface);
+    wgpuSurfaceRelease(wgpu_surface);
+    wgpuQueueRelease(wgpu_queue);
+    wgpuDeviceRelease(wgpu_device);
+    wgpuInstanceRelease(wgpu_instance);
+
+    SDL_DestroyWindow(window);
+    SDL_Quit();
+
+    return 0;
+}
+
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+static WGPUAdapter RequestAdapter(wgpu::Instance& instance)
+{
+    wgpu::Adapter acquired_adapter;
+    wgpu::RequestAdapterOptions adapter_options;
+    auto onRequestAdapter = [&](wgpu::RequestAdapterStatus status, wgpu::Adapter adapter, wgpu::StringView message)
+    {
+        if (status != wgpu::RequestAdapterStatus::Success)
+        {
+            printf("Failed to get an adapter: %s\n", message.data);
+            return;
+        }
+        acquired_adapter = std::move(adapter);
+    };
+
+    // Synchronously (wait until) acquire Adapter
+    wgpu::Future waitAdapterFunc { instance.RequestAdapter(&adapter_options, wgpu::CallbackMode::WaitAnyOnly, onRequestAdapter) };
+    wgpu::WaitStatus waitStatusAdapter = instance.WaitAny(waitAdapterFunc, UINT64_MAX);
+    IM_ASSERT(acquired_adapter != nullptr && waitStatusAdapter == wgpu::WaitStatus::Success && "Error on Adapter request");
+    return acquired_adapter.MoveToCHandle();
+}
+
+static WGPUDevice RequestDevice(wgpu::Instance& instance, wgpu::Adapter& adapter)
+{
+    // Set device callback functions
+    wgpu::DeviceDescriptor device_desc;
+    device_desc.SetDeviceLostCallback(wgpu::CallbackMode::AllowSpontaneous,
+        [](const wgpu::Device&, wgpu::DeviceLostReason type, wgpu::StringView msg) { fprintf(stderr, "%s error: %s\n", ImGui_ImplWGPU_GetDeviceLostReasonName((WGPUDeviceLostReason)type), msg.data); }
+    );
+    device_desc.SetUncapturedErrorCallback(
+        [](const wgpu::Device&, wgpu::ErrorType type, wgpu::StringView msg) { fprintf(stderr, "%s error: %s\n", ImGui_ImplWGPU_GetErrorTypeName((WGPUErrorType)type), msg.data); }
+    );
+
+    wgpu::Device acquired_device;
+    auto onRequestDevice = [&](wgpu::RequestDeviceStatus status, wgpu::Device local_device, wgpu::StringView message)
+    {
+        if (status != wgpu::RequestDeviceStatus::Success)
+        {
+            printf("Failed to get an device: %s\n", message.data);
+            return;
+        }
+        acquired_device = std::move(local_device);
+    };
+
+    // Synchronously (wait until) get Device
+    wgpu::Future waitDeviceFunc { adapter.RequestDevice(&device_desc, wgpu::CallbackMode::WaitAnyOnly, onRequestDevice) };
+    wgpu::WaitStatus waitStatusDevice = instance.WaitAny(waitDeviceFunc, UINT64_MAX);
+    IM_ASSERT(acquired_device != nullptr && waitStatusDevice == wgpu::WaitStatus::Success && "Error on Device request");
+    return acquired_device.MoveToCHandle();
+}
+#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
+static void handle_request_adapter(WGPURequestAdapterStatus status, WGPUAdapter adapter, WGPUStringView message, void* userdata1, void* userdata2)
+{
+    IM_UNUSED(userdata2);
+    if (status == WGPURequestAdapterStatus_Success)
+    {
+        WGPUAdapter* extAdapter = (WGPUAdapter*)userdata1;
+        *extAdapter = adapter;
+    }
+    else
+    {
+        printf("Request_adapter status=%#.8x message=%.*s\n", status, (int)message.length, message.data);
+    }
+}
+
+static void handle_request_device(WGPURequestDeviceStatus status, WGPUDevice device, WGPUStringView message, void* userdata1, void* userdata2)
+{
+    IM_UNUSED(userdata2);
+    if (status == WGPURequestDeviceStatus_Success)
+    {
+        WGPUDevice* extDevice = (WGPUDevice*)userdata1;
+        *extDevice = device;
+    }
+    else
+    {
+        printf("Request_device status=%#.8x message=%.*s\n", status, (int)message.length, message.data);
+    }
+}
+
+static WGPUAdapter RequestAdapter(WGPUInstance& instance)
+{
+    WGPURequestAdapterOptions adapter_options = {};
+
+    WGPUAdapter local_adapter = nullptr;
+    WGPURequestAdapterCallbackInfo adapterCallbackInfo = {};
+    adapterCallbackInfo.mode = WGPUCallbackMode_WaitAnyOnly;
+    adapterCallbackInfo.callback = handle_request_adapter;
+    adapterCallbackInfo.userdata1 = &local_adapter;
+
+    WGPUFuture future = wgpuInstanceRequestAdapter(instance, &adapter_options, adapterCallbackInfo);
+    WGPUFutureWaitInfo waitInfo = { future, false };
+    wgpuInstanceWaitAny(instance, 1, &waitInfo, ~0ull);
+    IM_ASSERT(local_adapter && "Error on Adapter request");
+    return local_adapter;
+}
+
+static WGPUDevice RequestDevice(WGPUInstance& instance, WGPUAdapter& adapter)
+{
+    WGPUDevice local_device = nullptr;
+    WGPURequestDeviceCallbackInfo deviceCallbackInfo = {};
+    deviceCallbackInfo.mode = WGPUCallbackMode_WaitAnyOnly;
+    deviceCallbackInfo.callback = handle_request_device;
+    deviceCallbackInfo.userdata1 = &local_device;
+    WGPUFuture future = wgpuAdapterRequestDevice(adapter, nullptr, deviceCallbackInfo);
+    WGPUFutureWaitInfo waitInfo = { future, false };
+    wgpuInstanceWaitAny(instance, 1, &waitInfo, ~0ull);
+    IM_ASSERT(local_device && "Error on Device request");
+    return local_device;
+}
+#endif // IMGUI_IMPL_WEBGPU_BACKEND_WGPU
+
+static bool InitWGPU(SDL_Window* window)
+{
+    WGPUTextureFormat preferred_fmt = WGPUTextureFormat_Undefined;  // acquired from SurfaceCapabilities
+
+    // Google DAWN backend: Adapter and Device acquisition, Surface creation
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+    wgpu::InstanceDescriptor instance_desc = {};
+    static constexpr wgpu::InstanceFeatureName timedWaitAny = wgpu::InstanceFeatureName::TimedWaitAny;
+    instance_desc.requiredFeatureCount = 1;
+    instance_desc.requiredFeatures = &timedWaitAny;
+    wgpu::Instance instance = wgpu::CreateInstance(&instance_desc);
+
+    wgpu::Adapter adapter = RequestAdapter(instance);
+    ImGui_ImplWGPU_DebugPrintAdapterInfo(adapter.Get());
+    
+    wgpu_device = RequestDevice(instance, adapter);
+
+    // Create the surface.
+#ifdef __EMSCRIPTEN__
+    wgpu::EmscriptenSurfaceSourceCanvasHTMLSelector canvas_desc = {};
+    canvas_desc.selector = "#canvas";
+
+    wgpu::SurfaceDescriptor surface_desc = {};
+    surface_desc.nextInChain = &canvas_desc;
+    wgpu::Surface surface = instance.CreateSurface(&surface_desc);
+#else
+    wgpu::Surface surface = CreateWGPUSurface(instance.Get(), window);
+#endif
+    if (!surface)
+        return false;
+
+    // Moving Dawn objects into WGPU handles
+    wgpu_instance = instance.MoveToCHandle();
+    wgpu_surface = surface.MoveToCHandle();
+
+    WGPUSurfaceCapabilities surface_capabilities = {};
+    wgpuSurfaceGetCapabilities(wgpu_surface, adapter.Get(), &surface_capabilities);
+
+    preferred_fmt = surface_capabilities.formats[0];
+
+    // WGPU backend: Adapter and Device acquisition, Surface creation
+#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU) ||  defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
+    WGPUInstanceDescriptor instanceDesc = {};
+    WGPUInstanceFeatureName timedWaitAny = WGPUInstanceFeatureName_TimedWaitAny;
+    instanceDesc.requiredFeatureCount = 1;
+    instanceDesc.requiredFeatures = &timedWaitAny;
+    wgpu_instance = wgpuCreateInstance(&instanceDesc);
+
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
+    wgpuSetLogCallback(
+        [](WGPULogLevel level, WGPUStringView msg, void* userdata) { fprintf(stderr, "%s: %.*s\n", ImGui_ImplWGPU_GetLogLevelName(level), (int)msg.length, msg.data); }, nullptr
+    );
+    wgpuSetLogLevel(WGPULogLevel_Warn);
+#endif
+
+    WGPUAdapter adapter = RequestAdapter(wgpu_instance);
+    ImGui_ImplWGPU_DebugPrintAdapterInfo(adapter);
+    
+    wgpu_device = RequestDevice(wgpu_instance, adapter);
+
+    // Create the surface.
+    wgpu_surface = CreateWGPUSurface(wgpu_instance, window);
+    if (!wgpu_surface)
+        return false;
+
+    WGPUSurfaceCapabilities surface_capabilities = {};
+    wgpuSurfaceGetCapabilities(wgpu_surface, adapter, &surface_capabilities);
+
+    preferred_fmt = surface_capabilities.formats[0];
+#endif // IMGUI_IMPL_WEBGPU_BACKEND_WGPU
+
+    wgpu_surface_configuration.presentMode = WGPUPresentMode_Fifo;
+    wgpu_surface_configuration.alphaMode = WGPUCompositeAlphaMode_Auto;
+    wgpu_surface_configuration.usage = WGPUTextureUsage_RenderAttachment;
+    wgpu_surface_configuration.width = wgpu_surface_width;
+    wgpu_surface_configuration.height = wgpu_surface_height;
+    wgpu_surface_configuration.device = wgpu_device;
+    wgpu_surface_configuration.format = preferred_fmt;
+
+    wgpuSurfaceConfigure(wgpu_surface, &wgpu_surface_configuration);
+    wgpu_queue = wgpuDeviceGetQueue(wgpu_device);
+
+    return true;
+}
+
+// SDL2 helper to create a WebGPU surface (exclusively!) for Native/Desktop applications: available only together with WebGPU/WGPU backend
+// As of today (2025/10/31) there is no "official" support in SDL2 to create a surface for WebGPU backend.
+// This stub uses "low level" SDL2 calls to acquire information from a specific Window Manager.
+// Currently supported platforms: Windows / Linux (X11 and Wayland) / MacOS. Not necessary nor available with EMSCRIPTEN.
+#ifndef __EMSCRIPTEN__
+
+#include <SDL_syswm.h>
+#undef Status           // X11 headers are leaking this and also 'Success', 'Always', 'None', all used in DAWN api. Add #undef if necessary.
+
+WGPUSurface CreateWGPUSurface(const WGPUInstance& instance, SDL_Window* window)
+{
+    SDL_SysWMinfo sysWMInfo;
+    SDL_VERSION(&sysWMInfo.version);
+    SDL_GetWindowWMInfo(window, &sysWMInfo);
+
+    ImGui_ImplWGPU_CreateSurfaceInfo create_info = {};
+    create_info.Instance = instance;
+#if defined(SDL_VIDEO_DRIVER_COCOA)
+    {
+        create_info.System = "cocoa";
+        create_info.RawWindow = (void*)sysWMInfo.info.cocoa.window;
+        return ImGui_ImplWGPU_CreateWGPUSurfaceHelper(&create_info);
+    }
+#elif defined(SDL_VIDEO_DRIVER_WAYLAND) || defined(SDL_VIDEO_DRIVER_X11)
+    const char* sdl_driver = SDL_GetCurrentVideoDriver();
+    if (sdl_driver && strcmp(sdl_driver, "wayland") == 0)
+    {
+        create_info.System = "wayland";
+        create_info.RawDisplay = (void*)sysWMInfo.info.wl.display;
+        create_info.RawSurface = (void*)sysWMInfo.info.wl.surface;
+        return ImGui_ImplWGPU_CreateWGPUSurfaceHelper(&create_info);
+    }
+    else
+    {
+        create_info.System = "x11";
+        create_info.RawWindow = (void*)sysWMInfo.info.x11.window;
+        create_info.RawDisplay = (void*)sysWMInfo.info.x11.display;
+        return ImGui_ImplWGPU_CreateWGPUSurfaceHelper(&create_info);
+    }
+#elif defined(SDL_VIDEO_DRIVER_WINDOWS)
+    {
+        create_info.System = "win32";
+        create_info.RawWindow = (void*)sysWMInfo.info.win.window;
+        create_info.RawInstance = (void*)sysWMInfo.info.win.hinstance;
+        return ImGui_ImplWGPU_CreateWGPUSurfaceHelper(&create_info);
+    }
+#else
+#error "Unsupported WebGPU native platform!"
+    return nullptr;
+#endif
+}
+#endif // #ifndef __EMSCRIPTEN__

examples/example_sdl3_directx11/main.cpp

@@ -48,7 +48,7 @@ int main(int, char**)
     }
 
     SDL_PropertiesID props = SDL_GetWindowProperties(window);
-    HWND hwnd = (HWND)SDL_GetPointerProperty(props, SDL_PROP_WINDOW_WIN32_HWND_POINTER, NULL);
+    HWND hwnd = (HWND)SDL_GetPointerProperty(props, SDL_PROP_WINDOW_WIN32_HWND_POINTER, nullptr);
 
     // Initialize Direct3D
     if (!CreateDeviceD3D(hwnd))
@@ -74,21 +74,23 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplSDL3_InitForD3D(window);
     ImGui_ImplDX11_Init(g_pd3dDevice, g_pd3dDeviceContext);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
@@ -205,6 +207,7 @@ int main(int, char**)
 bool CreateDeviceD3D(HWND hWnd)
 {
     // Setup swap chain
+    // This is a basic setup. Optimally could use e.g. DXGI_SWAP_EFFECT_FLIP_DISCARD and handle fullscreen mode differently. See #8979 for suggestions.
     DXGI_SWAP_CHAIN_DESC sd;
     ZeroMemory(&sd, sizeof(sd));
     sd.BufferCount = 2;

examples/example_sdl3_metal/main.mm

@@ -70,21 +70,23 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplMetal_Init(layer.device);
     ImGui_ImplSDL3_InitForMetal(window);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_sdl3_opengl3/Makefile.emscripten

@@ -36,7 +36,7 @@ EMS =
 ##---------------------------------------------------------------------
 
 # ("EMS" options gets added to both CPPFLAGS and LDFLAGS, whereas some options are for linker only)
-EMS += -s USE_SDL=2
+EMS += -s USE_SDL=3
 EMS += -s DISABLE_EXCEPTION_CATCHING=1
 LDFLAGS += -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -s ASSERTIONS=1
 

examples/example_sdl3_opengl3/main.cpp

@@ -102,22 +102,24 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplSDL3_InitForOpenGL(window, gl_context);
     ImGui_ImplOpenGL3_Init(glsl_version);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     // - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_sdl3_sdlgpu3/main.cpp

@@ -47,7 +47,7 @@ int main(int, char**)
     SDL_ShowWindow(window);
 
     // Create GPU Device
-    SDL_GPUDevice* gpu_device = SDL_CreateGPUDevice(SDL_GPU_SHADERFORMAT_SPIRV | SDL_GPU_SHADERFORMAT_DXIL | SDL_GPU_SHADERFORMAT_METALLIB,true,nullptr);
+    SDL_GPUDevice* gpu_device = SDL_CreateGPUDevice(SDL_GPU_SHADERFORMAT_SPIRV | SDL_GPU_SHADERFORMAT_DXIL | SDL_GPU_SHADERFORMAT_MSL | SDL_GPU_SHADERFORMAT_METALLIB, true, nullptr);
     if (gpu_device == nullptr)
     {
         printf("Error: SDL_CreateGPUDevice(): %s\n", SDL_GetError());
@@ -76,7 +76,7 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplSDL3_InitForSDLGPU(window);
@@ -89,14 +89,16 @@ int main(int, char**)
     ImGui_ImplSDLGPU3_Init(&init_info);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_sdl3_sdlrenderer3/main.cpp

@@ -64,22 +64,23 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplSDL3_InitForSDLRenderer(window, renderer);
     ImGui_ImplSDLRenderer3_Init(renderer);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    // - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_sdl3_vulkan/main.cpp

@@ -51,7 +51,6 @@ static VkDescriptorPool         g_DescriptorPool = VK_NULL_HANDLE;
 static ImGui_ImplVulkanH_Window g_MainWindowData;
 static uint32_t                 g_MinImageCount = 2;
 static bool                     g_SwapChainRebuild = false;
-static VkImageUsageFlags        g_SwapChainImageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 
 static void check_vk_result(VkResult err)
 {
@@ -195,7 +194,7 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
         pool_info.maxSets = 0;
         for (VkDescriptorPoolSize& pool_size : pool_sizes)
             pool_info.maxSets += pool_size.descriptorCount;
-        pool_info.poolSizeCount = (uint32_t)IM_ARRAYSIZE(pool_sizes);
+        pool_info.poolSizeCount = (uint32_t)IM_COUNTOF(pool_sizes);
         pool_info.pPoolSizes = pool_sizes;
         err = vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool);
         check_vk_result(err);
@@ -206,11 +205,9 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
 // Your real engine/app may not use them.
 static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface, int width, int height)
 {
-    wd->Surface = surface;
-
     // Check for WSI support
     VkBool32 res;
-    vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, wd->Surface, &res);
+    vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, surface, &res);
     if (res != VK_TRUE)
     {
         fprintf(stderr, "Error no WSI support on physical device 0\n");
@@ -220,7 +217,8 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
     // Select Surface Format
     const VkFormat requestSurfaceImageFormat[] = { VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM };
     const VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
-    wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
+    wd->Surface = surface;
+    wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_COUNTOF(requestSurfaceImageFormat), requestSurfaceColorSpace);
 
     // Select Present Mode
 #ifdef APP_USE_UNLIMITED_FRAME_RATE
@@ -228,12 +226,12 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
 #else
     VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_FIFO_KHR };
 #endif
-    wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_modes[0], IM_ARRAYSIZE(present_modes));
+    wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_modes[0], IM_COUNTOF(present_modes));
     //printf("[vulkan] Selected PresentMode = %d\n", wd->PresentMode);
 
     // Create SwapChain, RenderPass, Framebuffer, etc.
     IM_ASSERT(g_MinImageCount >= 2);
-    ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount, g_SwapChainImageUsage);
+    ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount, 0);
 }
 
 static void CleanupVulkan()
@@ -250,9 +248,10 @@ static void CleanupVulkan()
     vkDestroyInstance(g_Instance, g_Allocator);
 }
 
-static void CleanupVulkanWindow()
+static void CleanupVulkanWindow(ImGui_ImplVulkanH_Window* wd)
 {
-    ImGui_ImplVulkanH_DestroyWindow(g_Instance, g_Device, &g_MainWindowData, g_Allocator);
+    ImGui_ImplVulkanH_DestroyWindow(g_Instance, g_Device, wd, g_Allocator);
+    vkDestroySurfaceKHR(g_Instance, wd->Surface, g_Allocator);
 }
 
 static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
@@ -403,7 +402,7 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplSDL3_InitForVulkan(window);
@@ -426,14 +425,16 @@ int main(int, char**)
     ImGui_ImplVulkan_Init(&init_info);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
@@ -479,7 +480,7 @@ int main(int, char**)
         if (fb_width > 0 && fb_height > 0 && (g_SwapChainRebuild || g_MainWindowData.Width != fb_width || g_MainWindowData.Height != fb_height))
         {
             ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount);
-            ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, fb_height, fb_height, g_MinImageCount, g_SwapChainImageUsage);
+            ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, fb_width, fb_height, g_MinImageCount, 0);
             g_MainWindowData.FrameIndex = 0;
             g_SwapChainRebuild = false;
         }
@@ -549,7 +550,7 @@ int main(int, char**)
     ImGui_ImplSDL3_Shutdown();
     ImGui::DestroyContext();
 
-    CleanupVulkanWindow();
+    CleanupVulkanWindow(&g_MainWindowData);
     CleanupVulkan();
 
     SDL_DestroyWindow(window);

examples/example_sdl3_wgpu/CMakeLists.txt

@@ -0,0 +1,213 @@
+# Building for desktop with Dawn:
+#  1. git clone https://github.com/google/dawn dawn
+#  2. cmake -B build -DIMGUI_DAWN_DIR=dawn
+#  3. cmake --build build
+# The resulting binary will be found at one of the following locations:
+#   * build/example_sdl3_wgpu[.exe] or build/Debug/example_sdl3_wgpu[.exe]
+
+# Building for desktop with WGPU-Native:
+#  1. download WGPU-Native autogenerated binary modules for your platform/compiler from: https://github.com/gfx-rs/wgpu-native/releases
+#  2. unzip the downloaded file in your_preferred_folder
+#  3. cmake -B build -DIMGUI_WGPU_DIR=your_preferred_folder  ("full path" or "relative" starting from current directory)
+#  4. cmake --build build
+# The resulting binary will be found at one of the following locations:
+#   * build/example_sdl3_wgpu[.exe] or build/Debug/example_sdl3_wgpu[.exe]
+
+# Building for desktop with WGVK (MUCH EASIER)
+#  1. git clone https://github.com/manuel5975p/WGVK dawn
+#  2. cmake -B build -DIMGUI_WGVK_DIR=wgvk
+#  3. cmake --build build
+# The resulting binary will be found at one of the following locations:
+#   * build/example_sdl3_wgpu[.exe] or build/Debug/example_sdl3_wgpu[.exe]
+
+# Building for Emscripten:
+#  1. Install Emscripten SDK following the instructions: https://emscripten.org/docs/getting_started/downloads.html
+#  2. Install Ninja build system
+#  3. emcmake cmake -G Ninja -B build
+#       (optional) -DIMGUI_EMSCRIPTEN_WEBGPU_FLAG="--use-port=path/to/emdawnwebgpu_package/emdawnwebgpu.port.py", see ReadMe.md
+#  4. cmake --build build
+#  5. emrun build/index.html
+
+cmake_minimum_required(VERSION 3.22) # Dawn requires CMake >= 3.22
+project(imgui_example_sdl3_wgpu C CXX)
+
+set(IMGUI_EXECUTABLE example_sdl3_wgpu)
+
+if(NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE Debug CACHE STRING "" FORCE)
+endif()
+
+set(CMAKE_CXX_STANDARD 17) # Dawn requires C++17
+
+# Dear ImGui
+set(IMGUI_DIR ../../)
+
+# ImGui example commons source files
+set(IMGUI_EXAMPLE_SOURCE_FILES
+        main.cpp
+        # backend files
+        ${IMGUI_DIR}/backends/imgui_impl_sdl3.cpp
+        ${IMGUI_DIR}/backends/imgui_impl_wgpu.cpp
+        # Dear ImGui files
+        ${IMGUI_DIR}/imgui.cpp
+        ${IMGUI_DIR}/imgui_draw.cpp
+        ${IMGUI_DIR}/imgui_demo.cpp
+        ${IMGUI_DIR}/imgui_tables.cpp
+        ${IMGUI_DIR}/imgui_widgets.cpp
+)
+
+if(EMSCRIPTEN)
+    if(EMSCRIPTEN_VERSION VERSION_LESS "4.0.15")
+        message(FATAL_ERROR "Using Emscripten with SDL3 needs Emscripten version >= 4.0.15")
+    endif()
+    # emdawnwebgpu was introduced in 4.0.10 so, due to the prior requirement, this will work
+    set(IMGUI_EMSCRIPTEN_WEBGPU_FLAG "--use-port=emdawnwebgpu" CACHE STRING "Default to --use-port=emdawnwebgpu. You can override to provide your own local port.")
+
+    add_compile_options(-sDISABLE_EXCEPTION_CATCHING=1 -DIMGUI_DISABLE_FILE_FUNCTIONS=1)
+else() # Native/Desktop build
+
+    # Check DAWN/WGPU/WGVK directory
+    # If it's Native/Desktop build, IMGUI_DAWN_DIR or IMGUI_WGPU_DIR or IMGUI_WGVK_DIR must be specified
+    if(NOT IMGUI_DAWN_DIR AND NOT IMGUI_WGPU_DIR AND NOT IMGUI_WGVK_DIR)
+        message(FATAL_ERROR "Please specify one of IMGUI_DAWN_DIR/IMGUI_WGPU_DIR/IMGUI_WGVK_DIR base directory.")
+    endif()
+    if((IMGUI_DAWN_DIR AND (IMGUI_WGPU_DIR OR IMGUI_WGVK_DIR)) OR (IMGUI_WGPU_DIR AND IMGUI_WGVK_DIR))
+        message(FATAL_ERROR "Please specify only one of IMGUI_DAWN_DIR/IMGUI_WGPU_DIR/IMGUI_WGVK_DIR base directory.")
+    endif()
+
+    if(APPLE) # Add SDL3 module to get Surface, with libs and file property for MacOS build
+        set_source_files_properties(${IMGUI_DIR}/backends/imgui_impl_wgpu.cpp PROPERTIES COMPILE_FLAGS "-x objective-c++")
+        set(OS_LIBRARIES "-framework CoreFoundation -framework QuartzCore -framework Metal -framework MetalKit -framework Cocoa")
+    endif()
+
+    find_package(SDL3 REQUIRED CONFIG REQUIRED COMPONENTS SDL3)
+
+    if(IMGUI_DAWN_DIR)
+        list(APPEND CMAKE_PREFIX_PATH ${IMGUI_DAWN_DIR})
+        find_package(Threads) # required from Dawn installation
+        find_package(Dawn) # Search for a Dawn installation using IMGUI_DAWN_DIR in CMAKE_PREFIX_PATH
+        if(Dawn_FOUND)
+            message("Dawn Installation has been found!")
+            set(LIBRARIES dawn::webgpu_dawn ${OS_LIBRARIES})
+        else()
+            set(IMGUI_DAWN_DIR CACHE PATH "Path to Dawn repository")
+
+            option(DAWN_USE_GLFW OFF) # disable builtin GLFW in DAWN when we use SDL2 / SDL3
+
+            option(DAWN_FETCH_DEPENDENCIES "Use fetch_dawn_dependencies.py as an alternative to using depot_tools" ON)
+            set(DAWN_BUILD_MONOLITHIC_LIBRARY "STATIC" CACHE STRING "Build monolithic library: SHARED, STATIC, or OFF.")
+
+            # Dawn builds many things by default - disable things we don't need
+            option(DAWN_BUILD_SAMPLES "Enables building Dawn's samples" OFF)
+            option(TINT_BUILD_CMD_TOOLS "Build the Tint command line tools" OFF)
+            option(TINT_BUILD_DOCS "Build documentation" OFF)
+            option(TINT_BUILD_TESTS "Build tests" OFF)
+            if(NOT APPLE)
+                option(TINT_BUILD_MSL_WRITER "Build the MSL output writer" OFF)
+            endif()
+            if(WIN32)
+                option(DAWN_FORCE_SYSTEM_COMPONENT_LOAD "Allow system component fallback" ON)
+                option(TINT_BUILD_SPV_READER "Build the SPIR-V input reader" OFF)
+                option(TINT_BUILD_WGSL_READER "Build the WGSL input reader" ON)
+                option(TINT_BUILD_GLSL_WRITER "Build the GLSL output writer" OFF)
+                option(TINT_BUILD_GLSL_VALIDATOR "Build the GLSL output validator" OFF)
+                option(TINT_BUILD_SPV_WRITER "Build the SPIR-V output writer" ON)
+                option(TINT_BUILD_WGSL_WRITER "Build the WGSL output writer" ON)
+            endif()
+            # check if WAYLAND is the current Session Type and enable DAWN_USE_WAYLAND Wayland option @compile time
+            # You can override this using: cmake -DDAWN_USE_WAYLAND=X (X = ON | OFF)
+            if(LINUX)
+                if($ENV{XDG_SESSION_TYPE} MATCHES wayland)
+                    option(DAWN_USE_WAYLAND "Enable support for Wayland surface" ON)
+                endif()
+            endif()
+
+            add_subdirectory("${IMGUI_DAWN_DIR}" "${CMAKE_CURRENT_BINARY_DIR}/dawn" EXCLUDE_FROM_ALL)
+
+            set(LIBRARIES webgpu_dawn ${OS_LIBRARIES})
+        endif()
+    endif()
+
+    if(IMGUI_WGPU_DIR)
+        set(WGPU_NATIVE_LIB_DIR ${IMGUI_WGPU_DIR}/lib)
+        find_library(WGPU_LIBRARY NAMES libwgpu_native.a wgpu_native.lib wgpu_native HINTS ${WGPU_NATIVE_LIB_DIR} REQUIRED)
+        if(WIN32)
+            set(OS_LIBRARIES d3dcompiler ws2_32 userenv bcrypt ntdll opengl32 Propsys RuntimeObject)
+        elseif(UNIX AND NOT APPLE)
+            set(OS_LIBRARIES "-lm -ldl")
+        endif()
+
+        set(LIBRARIES ${WGPU_LIBRARY} ${OS_LIBRARIES})
+    endif()
+
+    if(IMGUI_WGVK_DIR)
+    endif()
+endif()
+
+add_executable(${IMGUI_EXECUTABLE} ${IMGUI_EXAMPLE_SOURCE_FILES})
+
+target_include_directories(${IMGUI_EXECUTABLE} PUBLIC
+        ${IMGUI_DIR}
+        ${IMGUI_DIR}/backends
+        ${SDL3_INCLUDE_DIRS}
+)
+
+target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_EXAMPLE_SDL3_WGPU")
+
+# Enable warning level compiler option only for IMGUI_EXAMPLE_SOURCE_FILES
+if (MSVC)
+    target_compile_options(${IMGUI_EXECUTABLE} PUBLIC /W4) # warning level 4
+else()
+    target_compile_options(${IMGUI_EXECUTABLE} PUBLIC -Wall) # -Wextra -Wpedantic
+endif()
+
+# IMGUI_IMPL_WEBGPU_BACKEND_DAWN/WGPU internal define is set according to:
+#   EMSCRIPTEN: by used FLAG
+#     --use-port=emdawnwebgpu --> IMGUI_IMPL_WEBGPU_BACKEND_DAWN enabled (+EMSCRIPTEN)
+#   NATIVE: by used SDK installation directory
+#     if IMGUI_DAWN_DIR is valid --> IMGUI_IMPL_WEBGPU_BACKEND_DAWN enabled
+#     if IMGUI_WGPU_DIR is valid --> IMGUI_IMPL_WEBGPU_BACKEND_WGPU enabled
+
+if(NOT EMSCRIPTEN) # WegGPU-Native settings
+    if(IMGUI_DAWN_DIR)
+        target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_IMPL_WEBGPU_BACKEND_DAWN")
+        if(NOT Dawn_FOUND)
+            target_link_libraries(${IMGUI_EXECUTABLE} INTERFACE webgpu_cpp)
+        endif()
+    endif()
+    if(IMGUI_WGPU_DIR)
+        target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_IMPL_WEBGPU_BACKEND_WGPU")
+        target_include_directories(${IMGUI_EXECUTABLE} PUBLIC ${IMGUI_WGPU_DIR}/include)
+    endif()
+    if(IMGUI_WGVK_DIR)
+        target_sources(${IMGUI_EXECUTABLE} PRIVATE ${IMGUI_WGVK_DIR}/src/wgvk.c)
+        target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_IMPL_WEBGPU_BACKEND_WGVK")
+        target_include_directories(${IMGUI_EXECUTABLE} PUBLIC ${IMGUI_WGVK_DIR}/include)
+        if (MSVC)
+           target_compile_options(${IMGUI_EXECUTABLE} PUBLIC /std:clatest /experimental:c11atomics)
+        endif()
+    endif()
+
+    target_link_libraries(${IMGUI_EXECUTABLE} PUBLIC ${LIBRARIES} SDL3::SDL3)
+else() # Emscripten settings
+    set(CMAKE_EXECUTABLE_SUFFIX ".html")
+
+    target_compile_options(${IMGUI_EXECUTABLE} PUBLIC "${IMGUI_EMSCRIPTEN_WEBGPU_FLAG}")
+    target_compile_definitions(${IMGUI_EXECUTABLE} PUBLIC "IMGUI_IMPL_WEBGPU_BACKEND_DAWN")
+    message(STATUS "Using ${IMGUI_EMSCRIPTEN_WEBGPU_FLAG} WebGPU implementation")
+
+    target_compile_options(${IMGUI_EXECUTABLE} PUBLIC "-sUSE_SDL=3")
+    target_link_options(${IMGUI_EXECUTABLE} PRIVATE
+            "${IMGUI_EMSCRIPTEN_WEBGPU_FLAG}"
+            "-sUSE_SDL=3"
+            "-sWASM=1"
+            "-sASYNCIFY=1"
+            "-sALLOW_MEMORY_GROWTH=1"
+            "-sNO_EXIT_RUNTIME=0"
+            "-sASSERTIONS=1"
+            "-sDISABLE_EXCEPTION_CATCHING=1"
+#            "-sNO_FILESYSTEM=1"
+            "--shell-file=${CMAKE_CURRENT_LIST_DIR}/../libs/emscripten/shell_minimal.html"
+    )
+    set_target_properties(${IMGUI_EXECUTABLE} PROPERTIES OUTPUT_NAME "index")
+endif()

examples/example_sdl3_wgpu/Makefile.emscripten

@@ -0,0 +1,99 @@
+#
+# Makefile to use with emscripten
+# See https://emscripten.org/docs/getting_started/downloads.html
+# for installation instructions.
+#
+# This Makefile assumes you have loaded emscripten's environment.
+# (On Windows, you may need to execute emsdk_env.bat or encmdprompt.bat ahead)
+#
+# Running `make -f Makefile.emscripten` will produce three files:
+#  - web/index.html
+#  - web/index.js
+#  - web/index.wasm
+#
+# All three are needed to run the demo.
+
+CC = emcc
+CXX = em++
+WEB_DIR = web
+EXE = $(WEB_DIR)/index.html
+IMGUI_DIR = ../..
+SOURCES = main.cpp
+SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl3.cpp $(IMGUI_DIR)/backends/imgui_impl_wgpu.cpp
+SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
+OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
+UNAME_S := $(shell uname -s)
+CPPFLAGS =
+LDFLAGS =
+EMS =
+
+##---------------------------------------------------------------------
+## EMSCRIPTEN OPTIONS
+##---------------------------------------------------------------------
+
+# ("EMS" options gets added to both CPPFLAGS and LDFLAGS, whereas some options are for linker only)
+EMS += -s USE_SDL=3
+EMS += -s DISABLE_EXCEPTION_CATCHING=1
+LDFLAGS += -s WASM=1
+LDFLAGS += -s ALLOW_MEMORY_GROWTH=1
+LDFLAGS += -s ASYNCIFY=1
+LDFLAGS += -s NO_EXIT_RUNTIME=0
+LDFLAGS += -s ASSERTIONS=1
+
+# Using Dawn-based WebGPU port (requires Emscripten >= 4.0.10)
+EMS += --use-port=emdawnwebgpu
+LDFLAGS += --use-port=emdawnwebgpu
+
+# Build as single file (binary text encoded in .html file)
+#LDFLAGS += -sSINGLE_FILE
+
+# Emscripten allows preloading a file or folder to be accessible at runtime.
+# The Makefile for this example project suggests embedding the misc/fonts/ folder into our application, it will then be accessible as "/fonts"
+# See documentation for more details: https://emscripten.org/docs/porting/files/packaging_files.html
+# (Default value is 0. Set to 1 to enable file-system and include the misc/fonts/ folder as part of the build.)
+USE_FILE_SYSTEM ?= 0
+ifeq ($(USE_FILE_SYSTEM), 0)
+LDFLAGS += -s NO_FILESYSTEM=1
+CPPFLAGS += -DIMGUI_DISABLE_FILE_FUNCTIONS
+endif
+ifeq ($(USE_FILE_SYSTEM), 1)
+LDFLAGS += --no-heap-copy --preload-file ../../misc/fonts@/fonts
+endif
+
+##---------------------------------------------------------------------
+## FINAL BUILD FLAGS
+##---------------------------------------------------------------------
+
+CPPFLAGS += -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
+#CPPFLAGS += -g
+CPPFLAGS += -Wall -Wformat -Os $(EMS)
+LDFLAGS += --shell-file ../libs/emscripten/shell_minimal.html
+LDFLAGS += $(EMS)
+
+##---------------------------------------------------------------------
+## BUILD RULES
+##---------------------------------------------------------------------
+
+%.o:%.cpp
+	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $<
+
+%.o:$(IMGUI_DIR)/%.cpp
+	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $<
+
+%.o:$(IMGUI_DIR)/backends/%.cpp
+	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $<
+
+all: $(EXE)
+	@echo Build complete for $(EXE)
+
+$(WEB_DIR):
+	mkdir $@
+
+serve: all
+	python3 -m http.server -d $(WEB_DIR)
+
+$(EXE): $(OBJS) $(WEB_DIR)
+	$(CXX) -o $@ $(OBJS) $(LDFLAGS)
+
+clean:
+	rm -f $(EXE) $(OBJS) $(WEB_DIR)/*.js $(WEB_DIR)/*.wasm $(WEB_DIR)/*.wasm.pre

examples/example_sdl3_wgpu/README.md

@@ -0,0 +1,163 @@
+## How to Build     
+
+
+---
+
+### Using CMake
+#### Building for desktop (WebGPU-native) with Google Dawn:
+ 1. `git clone https://github.com/google/dawn dawn`
+ 2. `cmake -B build -DIMGUI_DAWN_DIR=dawn`
+ 3. `cmake --build build`
+The resulting binary will be found at one of the following locations:
+  * build/Debug/example_sdl3_wgpu[.exe]
+  * build/example_sdl3_wgpu[.exe]
+
+#### Building for desktop (WebGPU-Native) with WGPU:
+ 1. download WGPU-Native autogenerated binary modules for your platform/compiler from: https://github.com/gfx-rs/wgpu-native/releases
+ 2. unzip the downloaded file in `your_preferred_folder`
+ 3. `cmake -B build -DIMGUI_WGPU_DIR=your_preferred_folder`  ("full path" or "relative" starting from current directory)
+ 5. `cmake --build build`
+The resulting binary will be found at one of the following locations:
+  * build/Debug/example_sdl3_wgpu[.exe]
+  * build/example_sdl3_wgpu[.exe]
+
+#### Building for Emscripten:
+ 1. Install Emscripten SDK following the instructions: https://emscripten.org/docs/getting_started/downloads.html
+ 2. Install Ninja build system
+ 3. `emcmake cmake -G Ninja -B build`
+    - (optional) `-DIMGUI_EMSCRIPTEN_WEBGPU_FLAG="--use-port=path/to/emdawnwebgpu_package/emdawnwebgpu.port.py"`, see below
+ 4. `cmake --build build`
+
+#### Sync Emscripten with latest Google Dawn:
+If you want to sync Emscripten with latest DAWN release it's necessary to download the `port-emdawnwgpu-package` (released daily by Google) here:
+https://github.com/google/dawn/releases
+Unpack it in your preferred folder and to replace the step 3 with: 
+
+3. `emcmake cmake -DIMGUI_EMSCRIPTEN_WEBGPU_FLAG="--use-port=path/to/emdawnwebgpu_package/emdawnwebgpu.port.py" -G Ninja -B build`
+
+**N.B.**
+For the WASM code produced by Emscripten to work correctly, it will also be necessary to have the "corresponding" (or newer) version of Google Canary (nightly build for developers) that includes the latest changes
+
+
+---
+
+### CMake by step
+
+#### Generate Dawn Native:
+
+- `cmake -G Ninja -DIMGUI_DAWN_DIR=path_to_sdk_dir -B where_to_build_dir`
+   - Using `IMGUI_DAWN_DIR` set `IMGUI_IMPL_WEBGPU_BACKEND_DAWN` compiler define 
+
+#### Generate WGPU Native:
+
+- `cmake -G Ninja -DIMGUI_WGPU_DIR=path_to_sdk_dir -B where_to_build_dir`
+
+   - Using `IMGUI_WGPU_DIR` set `IMGUI_IMPL_WEBGPU_BACKEND_WGPU` compiler define 
+
+#### Generate Emscripten:
+
+- `emcmake cmake -G Ninja -B where_to_build_dir`\
+CMake checks the EMSCRIPEN version then:
+   - if EMS >= 4.0.10 uses `--use-port=emdawnwebgpu` flag to build  
+      - it set `IMGUI_IMPL_WEBGPU_BACKEND_DAWN` compiler define 
+   - if EMS < 4.0.10 the build aborts (`-sUSE_WEBGPU=1` is no longer supported by our examples and our WGPU backend
+
+#### Generate Emscripten using external WebGPU library (emdawnwebgpu_pkg)
+
+- `emcmake cmake -G Ninja -DIMGUI_EMSCRIPTEN_WEBGPU_FLAG="--use-port=path_to_emdawnwebgpu_pkg" -B where_to_build_dir`
+   - it set `IMGUI_IMPL_WEBGPU_BACKEND_DAWN` compiler define 
+   - *To use external WebGPU library it's necessary to have EMS >= 4.0.10 or the minimum requirements specified by the package:*
+      - https://github.com/google/dawn/releases 
+
+#### Build time
+
+Once the procedure for the specific builder is generated, the build command is **always the same**:
+
+- Build using CMake
+   - `cmake --build where_to_build_dir`
+      - It will use selected builder to build the example.
+
+- Build explicitly:
+   - `cd where_to_build_dir`
+   - `ninja` 
+      - This is the builder chosen during the generation phase  
+
+---
+
+### CMake useful options
+#### Generator types (alternative to **ninja** builder):
+- `-G Ninja` to build with __ninja__ builder
+- `-G "Unix Makefiles"` to build with __make__ builder
+- `-G "Visual Studio 17 2022" -A x64` to create a VS 2022 solution (.sln) file, Windows only 
+   - **Native build only**
+   - Not **officially** supported to build Google Dawn
+
+Example:
+- using **make** instead **ninja**:
+   - `cmake -G "Unix Makefiles" -DIMGUI_DAWN_DIR=path_to_sdk_dir -B where_to_build_dir`
+
+**Syntax is case sensitive and the "" are necessary in case of spaces between words*
+
+#### Directories
+- The directory path can be absolute or relative (starting from the current directory)
+- It's necessary to use different `where_to_build_dir` for different CMake generations
+
+
+#### Build type
+The default build type is **Debug**
+It is possible to use a different build type using:
+- `-DCMAKE_BUILD_TYPE=Release`
+- `-DCMAKE_BUILD_TYPE=MinSizeRel`
+- `-DCMAKE_BUILD_TYPE=RelWithDebInfo`
+
+Example:
+- building **Release**:
+   - `cmake -G ninja -DIMGUI_WGPU_DIR=path_to_sdk_dir -DCMAKE_BUILD_TYPE=Release -B where_to_build_dir ` 
+
+#### GLFW / SDL2 / SDL3 includes, libraries, search paths and package manager
+
+Includes and libraries, by default, are searched in system/compiler paths (environment variables): you can add the path to your development tools to the environment variables without having to modify the `CMakeLists.txt` file.
+- e.g. CLang search in path specified from the following environment variables: 
+    - include files: CPATH, C_INCLUDE_PATH, CPLUS_INCLUDE_PATH
+    - library files: LIBRARY_PATH
+
+If you are using a package manager (**vcpkg** / **conan** / ... ) you need/can to specify it, adding to cmake command:
+- `-DCMAKE_TOOLCHAIN_FILE=path/to/package_manager.cmake`
+          
+Examples:
+
+- using **vcpkg** package manager it's necessary adding:
+   - `-DCMAKE_TOOLCHAIN_FILE=<vcpkg_root_dir>/scripts/buildsystems/vcpkg.cmake`
+
+- full cmake command using **vcpkg** package manager:
+   - `cmake -G Ninja -DIMGUI_DAWN_DIR=path_to_sdk_dir -DCMAKE_TOOLCHAIN_FILE=<vcpkg_root_dir>/scripts/buildsystems/vcpkg.cmake -B where_to_build_dir`
+
+---
+
+
+### Using makefile 
+
+- You need to install Emscripten from https://emscripten.org/docs/getting_started/downloads.html, and have the environment variables set, as described in https://emscripten.org/docs/getting_started/downloads.html#installation-instructions
+
+- Depending on your configuration, in Windows you may need to run `emsdk/emsdk_env.bat` in your console to access the Emscripten command-line tools.
+
+- You may also refer to our [Continuous Integration setup](https://github.com/ocornut/imgui/tree/master/.github/workflows) for Emscripten setup.
+
+- Then build using `make -f Makefile.emscripten` while in the `example_glfw_wgpu/` directory.
+
+- Requires recent Emscripten as WGPU is still a work-in-progress API.
+
+---
+
+## How to Run
+
+To run on a local machine:
+- Make sure your browse supports WGPU and it is enabled. WGPU is still WIP not enabled by default in most browser.
+- `make serve` will use Python3 to spawn a local webserver, you can then browse http://localhost:8000 to access your build.
+- Otherwise, generally you will need a local webserver:
+  - Quoting [https://emscripten.org/docs/getting_started](https://emscripten.org/docs/getting_started/Tutorial.html#generating-html):<br>
+_"Unfortunately several browsers (including Chrome, Safari, and Internet Explorer) do not support file:// [XHR](https://emscripten.org/docs/site/glossary.html#term-xhr) requests, and can’t load extra files needed by the HTML (like a .wasm file, or packaged file data as mentioned lower down). For these browsers you’ll need to serve the files using a [local webserver](https://emscripten.org/docs/getting_started/FAQ.html#faq-local-webserver) and then open http://localhost:8000/hello.html."_
+  - Emscripten SDK has a handy `emrun` command: `emrun web/example_glfw_wgpu.html --browser firefox` which will spawn a temporary local webserver (in Firefox). See https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html for details.
+  - You may use Python 3 builtin webserver: `python -m http.server -d web` (this is what `make serve` uses).
+  - You may use Python 2 builtin webserver: `cd web && python -m SimpleHTTPServer`.
+  - If you are accessing the files over a network, certain browsers, such as Firefox, will restrict Gamepad API access to secure contexts only (e.g. https only).

examples/example_sdl3_wgpu/main.cpp

@@ -0,0 +1,538 @@
+// Dear ImGui: standalone example application for using SDL3 + WebGPU
+// - Emscripten is supported for publishing on web. See https://emscripten.org.
+// - Dawn is used as a WebGPU implementation on desktop.
+
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+
+#include "imgui.h"
+#include "imgui_impl_sdl3.h"
+#include "imgui_impl_wgpu.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <SDL3/SDL.h>
+
+// This example can also compile and run with Emscripten! See 'Makefile.emscripten' for details.
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#include <emscripten/html5.h>
+#include "../libs/emscripten/emscripten_mainloop_stub.h"
+#endif
+
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+#include <webgpu/webgpu_cpp.h>
+#endif
+
+// Data
+static WGPUInstance             wgpu_instance = nullptr;
+static WGPUDevice               wgpu_device = nullptr;
+static WGPUSurface              wgpu_surface = nullptr;
+static WGPUQueue                wgpu_queue = nullptr;
+static WGPUSurfaceConfiguration wgpu_surface_configuration = {};
+static int                      wgpu_surface_width = 1280;
+static int                      wgpu_surface_height = 800;
+
+// Forward declarations
+static bool InitWGPU(SDL_Window* window);
+WGPUSurface CreateWGPUSurface(const WGPUInstance& instance, SDL_Window* window);
+
+static void ResizeSurface(int width, int height)
+{
+    wgpu_surface_configuration.width  = wgpu_surface_width  = width;
+    wgpu_surface_configuration.height = wgpu_surface_height = height;
+    wgpuSurfaceConfigure( wgpu_surface, (WGPUSurfaceConfiguration*)&wgpu_surface_configuration );
+}
+
+// Main code
+int main(int, char**)
+{
+    // Setup SDL
+    // [If using SDL_MAIN_USE_CALLBACKS: all code below until the main loop starts would likely be your SDL_AppInit() function]
+    if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_GAMEPAD))
+    {
+        printf("Error: SDL_Init(): %s\n", SDL_GetError());
+        return 1;
+    }
+
+    // Create SDL window graphics context
+    float main_scale = SDL_GetDisplayContentScale(SDL_GetPrimaryDisplay());
+    SDL_WindowFlags window_flags = SDL_WINDOW_RESIZABLE;
+    wgpu_surface_width = (int)(wgpu_surface_width * main_scale);
+    wgpu_surface_height = (int)(wgpu_surface_height * main_scale);
+    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+WebGPU example", wgpu_surface_width, wgpu_surface_height, window_flags);
+    if (window == nullptr)
+    {
+        printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
+        return 1;
+    }
+
+    // Initialize WGPU
+    InitWGPU(window);
+
+    // Setup Dear ImGui context
+    IMGUI_CHECKVERSION();
+    ImGui::CreateContext();
+    ImGuiIO& io = ImGui::GetIO(); (void)io;
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;      // Enable Gamepad Controls
+
+    // Setup Dear ImGui style
+    ImGui::StyleColorsDark();
+    //ImGui::StyleColorsLight();
+
+    // Setup scaling
+    ImGuiStyle& style = ImGui::GetStyle();
+    style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
+
+    // Setup Platform/Renderer backends
+    ImGui_ImplSDL3_InitForOther(window);
+
+    ImGui_ImplWGPU_InitInfo init_info;
+    init_info.Device = wgpu_device;
+    init_info.NumFramesInFlight = 3;
+    init_info.RenderTargetFormat = wgpu_surface_configuration.format;
+    init_info.DepthStencilFormat = WGPUTextureFormat_Undefined;
+    ImGui_ImplWGPU_Init(&init_info);
+
+    // Load Fonts
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
+    // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
+    // - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
+    //style.FontSizeBase = 20.0f;
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
+#ifndef IMGUI_DISABLE_FILE_FUNCTIONS
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //IM_ASSERT(font != nullptr);
+#endif
+
+    // Our state
+    bool show_demo_window = true;
+    bool show_another_window = false;
+    ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
+
+    // Main loop
+    bool done = false;
+#ifdef __EMSCRIPTEN__
+    // For an Emscripten build we are disabling file-system access, so let's not attempt to do a fopen() of the imgui.ini file.
+    // You may manually call LoadIniSettingsFromMemory() to load settings from your own storage.
+    io.IniFilename = nullptr;
+    EMSCRIPTEN_MAINLOOP_BEGIN
+#else
+    while (!done)
+#endif
+    {
+        // Poll and handle events (inputs, window resize, etc.)
+        // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
+        // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
+        // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
+        // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
+        // [If using SDL_MAIN_USE_CALLBACKS: call ImGui_ImplSDL3_ProcessEvent() from your SDL_AppEvent() function]
+        SDL_Event event;
+        while (SDL_PollEvent(&event))
+        {
+            ImGui_ImplSDL3_ProcessEvent(&event);
+            if (event.type == SDL_EVENT_QUIT)
+                done = true;
+            if (event.type == SDL_EVENT_WINDOW_CLOSE_REQUESTED && event.window.windowID == SDL_GetWindowID(window))
+                done = true;
+        }
+
+        // [If using SDL_MAIN_USE_CALLBACKS: all code below would likely be your SDL_AppIterate() function]
+        // React to changes in screen size
+        int width, height;
+        SDL_GetWindowSize(window, &width, &height);
+        if (width != wgpu_surface_width || height != wgpu_surface_height)
+            ResizeSurface(width, height);
+
+        // Check surface status for error. If texture is not optimal, try to reconfigure the surface.
+        WGPUSurfaceTexture surface_texture;
+        wgpuSurfaceGetCurrentTexture(wgpu_surface, &surface_texture);
+        if (ImGui_ImplWGPU_IsSurfaceStatusError(surface_texture.status))
+        {
+            fprintf(stderr, "Unrecoverable Surface Texture status=%#.8x\n", surface_texture.status);
+            abort();
+        }
+        if (ImGui_ImplWGPU_IsSurfaceStatusSubOptimal(surface_texture.status))
+        {
+            if (surface_texture.texture)
+                wgpuTextureRelease(surface_texture.texture);
+            if (width > 0 && height > 0)
+                ResizeSurface(width, height);
+            continue;
+        }
+
+        // Start the Dear ImGui frame
+        ImGui_ImplWGPU_NewFrame();
+        ImGui_ImplSDL3_NewFrame();
+        ImGui::NewFrame();
+
+        // 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
+        if (show_demo_window)
+            ImGui::ShowDemoWindow(&show_demo_window);
+
+        // 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
+        {
+            static float f = 0.0f;
+            static int counter = 0;
+
+            ImGui::Begin("Hello, world!");                                // Create a window called "Hello, world!" and append into it.
+
+            ImGui::Text("This is some useful text.");                     // Display some text (you can use a format strings too)
+            ImGui::Checkbox("Demo Window", &show_demo_window);            // Edit bools storing our window open/close state
+            ImGui::Checkbox("Another Window", &show_another_window);
+
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);                  // Edit 1 float using a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", (float*)&clear_color);       // Edit 3 floats representing a color
+
+            if (ImGui::Button("Button"))                                  // Buttons return true when clicked (most widgets return true when edited/activated)
+                counter++;
+            ImGui::SameLine();
+            ImGui::Text("counter = %d", counter);
+
+            ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
+            ImGui::End();
+        }
+
+        // 3. Show another simple window.
+        if (show_another_window)
+        {
+            ImGui::Begin("Another Window", &show_another_window);         // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked)
+            ImGui::Text("Hello from another window!");
+            if (ImGui::Button("Close Me"))
+                show_another_window = false;
+            ImGui::End();
+        }
+
+        // Rendering
+        ImGui::Render();
+
+        WGPUTextureViewDescriptor view_desc = {};
+        view_desc.format = wgpu_surface_configuration.format;
+        view_desc.dimension = WGPUTextureViewDimension_2D;
+        view_desc.mipLevelCount = WGPU_MIP_LEVEL_COUNT_UNDEFINED;
+        view_desc.arrayLayerCount = WGPU_ARRAY_LAYER_COUNT_UNDEFINED;
+        view_desc.aspect = WGPUTextureAspect_All;
+
+        WGPUTextureView texture_view = wgpuTextureCreateView(surface_texture.texture, &view_desc);
+
+        WGPURenderPassColorAttachment color_attachments = {};
+        color_attachments.depthSlice = WGPU_DEPTH_SLICE_UNDEFINED;
+        color_attachments.loadOp = WGPULoadOp_Clear;
+        color_attachments.storeOp = WGPUStoreOp_Store;
+        color_attachments.clearValue = { clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w };
+        color_attachments.view = texture_view;
+
+        WGPURenderPassDescriptor render_pass_desc = {};
+        render_pass_desc.colorAttachmentCount = 1;
+        render_pass_desc.colorAttachments = &color_attachments;
+        render_pass_desc.depthStencilAttachment = nullptr;
+
+        WGPUCommandEncoderDescriptor enc_desc = {};
+        WGPUCommandEncoder encoder = wgpuDeviceCreateCommandEncoder(wgpu_device, &enc_desc);
+
+        WGPURenderPassEncoder pass = wgpuCommandEncoderBeginRenderPass(encoder, &render_pass_desc);
+        ImGui_ImplWGPU_RenderDrawData(ImGui::GetDrawData(), pass);
+        wgpuRenderPassEncoderEnd(pass);
+
+        WGPUCommandBufferDescriptor cmd_buffer_desc = {};
+        WGPUCommandBuffer cmd_buffer = wgpuCommandEncoderFinish(encoder, &cmd_buffer_desc);
+        wgpuQueueSubmit(wgpu_queue, 1, &cmd_buffer);
+
+#ifndef __EMSCRIPTEN__
+        wgpuSurfacePresent(wgpu_surface);
+        // Tick needs to be called in Dawn to display validation errors
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+        wgpuDeviceTick(wgpu_device);
+#endif
+#endif
+        wgpuTextureViewRelease(texture_view);
+        wgpuRenderPassEncoderRelease(pass);
+        wgpuCommandEncoderRelease(encoder);
+        wgpuCommandBufferRelease(cmd_buffer);
+    }
+#ifdef __EMSCRIPTEN__
+    EMSCRIPTEN_MAINLOOP_END;
+#endif
+
+    // Cleanup
+    // [If using SDL_MAIN_USE_CALLBACKS: all code below would likely be your SDL_AppQuit() function]
+    ImGui_ImplWGPU_Shutdown();
+    ImGui_ImplSDL3_Shutdown();
+    ImGui::DestroyContext();
+
+    wgpuSurfaceUnconfigure(wgpu_surface);
+    wgpuSurfaceRelease(wgpu_surface);
+    wgpuQueueRelease(wgpu_queue);
+    wgpuDeviceRelease(wgpu_device);
+    wgpuInstanceRelease(wgpu_instance);
+
+    SDL_DestroyWindow(window);
+    SDL_Quit();
+
+    return 0;
+}
+
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+static WGPUAdapter RequestAdapter(wgpu::Instance& instance)
+{
+    wgpu::Adapter acquired_adapter;
+    wgpu::RequestAdapterOptions adapter_options;
+    auto onRequestAdapter = [&](wgpu::RequestAdapterStatus status, wgpu::Adapter adapter, wgpu::StringView message)
+    {
+        if (status != wgpu::RequestAdapterStatus::Success)
+        {
+            printf("Failed to get an adapter: %s\n", message.data);
+            return;
+        }
+        acquired_adapter = std::move(adapter);
+    };
+
+    // Synchronously (wait until) acquire Adapter
+    wgpu::Future waitAdapterFunc { instance.RequestAdapter(&adapter_options, wgpu::CallbackMode::WaitAnyOnly, onRequestAdapter) };
+    wgpu::WaitStatus waitStatusAdapter = instance.WaitAny(waitAdapterFunc, UINT64_MAX);
+    IM_ASSERT(acquired_adapter != nullptr && waitStatusAdapter == wgpu::WaitStatus::Success && "Error on Adapter request");
+    return acquired_adapter.MoveToCHandle();
+}
+
+static WGPUDevice RequestDevice(wgpu::Instance& instance, wgpu::Adapter& adapter)
+{
+    // Set device callback functions
+    wgpu::DeviceDescriptor device_desc;
+    device_desc.SetDeviceLostCallback(wgpu::CallbackMode::AllowSpontaneous,
+        [](const wgpu::Device&, wgpu::DeviceLostReason type, wgpu::StringView msg) { fprintf(stderr, "%s error: %s\n", ImGui_ImplWGPU_GetDeviceLostReasonName((WGPUDeviceLostReason)type), msg.data); }
+    );
+    device_desc.SetUncapturedErrorCallback(
+        [](const wgpu::Device&, wgpu::ErrorType type, wgpu::StringView msg) { fprintf(stderr, "%s error: %s\n", ImGui_ImplWGPU_GetErrorTypeName((WGPUErrorType)type), msg.data); }
+    );
+
+    wgpu::Device acquired_device;
+    auto onRequestDevice = [&](wgpu::RequestDeviceStatus status, wgpu::Device local_device, wgpu::StringView message)
+    {
+        if (status != wgpu::RequestDeviceStatus::Success)
+        {
+            printf("Failed to get an device: %s\n", message.data);
+            return;
+        }
+        acquired_device = std::move(local_device);
+    };
+
+    // Synchronously (wait until) get Device
+    wgpu::Future waitDeviceFunc { adapter.RequestDevice(&device_desc, wgpu::CallbackMode::WaitAnyOnly, onRequestDevice) };
+    wgpu::WaitStatus waitStatusDevice = instance.WaitAny(waitDeviceFunc, UINT64_MAX);
+    IM_ASSERT(acquired_device != nullptr && waitStatusDevice == wgpu::WaitStatus::Success && "Error on Device request");
+    return acquired_device.MoveToCHandle();
+}
+#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
+static void handle_request_adapter(WGPURequestAdapterStatus status, WGPUAdapter adapter, WGPUStringView message, void* userdata1, void* userdata2)
+{
+    IM_UNUSED(userdata2);
+    if (status == WGPURequestAdapterStatus_Success)
+    {
+        WGPUAdapter* extAdapter = (WGPUAdapter*)userdata1;
+        *extAdapter = adapter;
+    }
+    else
+    {
+        printf("Request_adapter status=%#.8x message=%.*s\n", status, (int)message.length, message.data);
+    }
+}
+
+static void handle_request_device(WGPURequestDeviceStatus status, WGPUDevice device, WGPUStringView message, void* userdata1, void* userdata2)
+{
+    IM_UNUSED(userdata2);
+    if (status == WGPURequestDeviceStatus_Success)
+    {
+        WGPUDevice* extDevice = (WGPUDevice*)userdata1;
+        *extDevice = device;
+    }
+    else
+    {
+        printf("Request_device status=%#.8x message=%.*s\n", status, (int)message.length, message.data);
+    }
+}
+
+static WGPUAdapter RequestAdapter(WGPUInstance& instance)
+{
+    WGPURequestAdapterOptions adapter_options = {};
+
+    WGPUAdapter local_adapter = nullptr;
+    WGPURequestAdapterCallbackInfo adapterCallbackInfo = {};
+    adapterCallbackInfo.mode = WGPUCallbackMode_WaitAnyOnly;
+    adapterCallbackInfo.callback = handle_request_adapter;
+    adapterCallbackInfo.userdata1 = &local_adapter;
+
+    WGPUFuture future = wgpuInstanceRequestAdapter(instance, &adapter_options, adapterCallbackInfo);
+    WGPUFutureWaitInfo waitInfo = { future, false };
+    wgpuInstanceWaitAny(instance, 1, &waitInfo, ~0ull);
+    IM_ASSERT(local_adapter && "Error on Adapter request");
+    return local_adapter;
+}
+
+static WGPUDevice RequestDevice(WGPUInstance& instance, WGPUAdapter& adapter)
+{
+    WGPUDevice local_device = nullptr;
+    WGPURequestDeviceCallbackInfo deviceCallbackInfo = {};
+    deviceCallbackInfo.mode = WGPUCallbackMode_WaitAnyOnly;
+    deviceCallbackInfo.callback = handle_request_device;
+    deviceCallbackInfo.userdata1 = &local_device;
+    WGPUFuture future = wgpuAdapterRequestDevice(adapter, nullptr, deviceCallbackInfo);
+    WGPUFutureWaitInfo waitInfo = { future, false };
+    wgpuInstanceWaitAny(instance, 1, &waitInfo, ~0ull);
+    IM_ASSERT(local_device && "Error on Device request");
+    return local_device;
+}
+#endif // IMGUI_IMPL_WEBGPU_BACKEND_WGPU
+
+static bool InitWGPU(SDL_Window* window)
+{
+    WGPUTextureFormat preferred_fmt = WGPUTextureFormat_Undefined;  // acquired from SurfaceCapabilities
+
+    // Google DAWN backend: Adapter and Device acquisition, Surface creation
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+    wgpu::InstanceDescriptor instance_desc = {};
+    static constexpr wgpu::InstanceFeatureName timedWaitAny = wgpu::InstanceFeatureName::TimedWaitAny;
+    instance_desc.requiredFeatureCount = 1;
+    instance_desc.requiredFeatures = &timedWaitAny;
+    wgpu::Instance instance = wgpu::CreateInstance(&instance_desc);
+
+    wgpu::Adapter adapter = RequestAdapter(instance);
+    ImGui_ImplWGPU_DebugPrintAdapterInfo(adapter.Get());
+
+    wgpu_device = RequestDevice(instance, adapter);
+
+    // Create the surface.
+#ifdef __EMSCRIPTEN__
+    wgpu::EmscriptenSurfaceSourceCanvasHTMLSelector canvas_desc = {};
+    canvas_desc.selector = "#canvas";
+
+    wgpu::SurfaceDescriptor surface_desc = {};
+    surface_desc.nextInChain = &canvas_desc;
+    wgpu::Surface surface = instance.CreateSurface(&surface_desc);
+#else
+    wgpu::Surface surface = CreateWGPUSurface(instance.Get(), window);
+#endif
+    if (!surface)
+        return false;
+
+    // Moving Dawn objects into WGPU handles
+    wgpu_instance = instance.MoveToCHandle();
+    wgpu_surface = surface.MoveToCHandle();
+
+    WGPUSurfaceCapabilities surface_capabilities = {};
+    wgpuSurfaceGetCapabilities(wgpu_surface, adapter.Get(), &surface_capabilities);
+
+    preferred_fmt = surface_capabilities.formats[0];
+
+    // WGPU backend: Adapter and Device acquisition, Surface creation
+#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
+    WGPUInstanceDescriptor instanceDesc = {};
+    WGPUInstanceFeatureName timedWaitAny = WGPUInstanceFeatureName_TimedWaitAny;
+    instanceDesc.requiredFeatureCount = 1;
+    instanceDesc.requiredFeatures = &timedWaitAny;
+    wgpu_instance = wgpuCreateInstance(&instanceDesc);
+
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
+    wgpuSetLogCallback(
+        [](WGPULogLevel level, WGPUStringView msg, void* userdata) { fprintf(stderr, "%s: %.*s\n", ImGui_ImplWGPU_GetLogLevelName(level), (int)msg.length, msg.data); }, nullptr
+    );
+    wgpuSetLogLevel(WGPULogLevel_Warn);
+#endif
+
+    WGPUAdapter adapter = RequestAdapter(wgpu_instance);
+    ImGui_ImplWGPU_DebugPrintAdapterInfo(adapter);
+
+    wgpu_device = RequestDevice(wgpu_instance, adapter);
+
+    // Create the surface.
+    wgpu_surface = CreateWGPUSurface(wgpu_instance, window);
+    if (!wgpu_surface)
+        return false;
+
+    WGPUSurfaceCapabilities surface_capabilities = {};
+    wgpuSurfaceGetCapabilities(wgpu_surface, adapter, &surface_capabilities);
+
+    preferred_fmt = surface_capabilities.formats[0];
+#endif // IMGUI_IMPL_WEBGPU_BACKEND_WGPU
+
+    wgpu_surface_configuration.presentMode = WGPUPresentMode_Fifo;
+    wgpu_surface_configuration.alphaMode = WGPUCompositeAlphaMode_Auto;
+    wgpu_surface_configuration.usage = WGPUTextureUsage_RenderAttachment;
+    wgpu_surface_configuration.width = wgpu_surface_width;
+    wgpu_surface_configuration.height = wgpu_surface_height;
+    wgpu_surface_configuration.device = wgpu_device;
+    wgpu_surface_configuration.format = preferred_fmt;
+
+    wgpuSurfaceConfigure(wgpu_surface, &wgpu_surface_configuration);
+    wgpu_queue = wgpuDeviceGetQueue(wgpu_device);
+
+    return true;
+}
+
+// SDL3 helper to create a WebGPU surface (exclusively!) for Native/Desktop applications: available only together with WebGPU/WGPU backend
+// As of today (2025/10) there is no "official" support in SDL3 to create a surface for WebGPU backend
+// This stub uses "low level" SDL3 calls to acquire information from a specific Window Manager.
+// Currently supported platforms: Windows / Linux (X11 and Wayland) / MacOS. Not necessary nor available with EMSCRIPTEN.
+#ifndef __EMSCRIPTEN__
+
+#if defined(SDL_PLATFORM_WIN32)
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN 1
+#endif
+#include <windows.h>
+#endif
+
+WGPUSurface CreateWGPUSurface(const WGPUInstance& instance, SDL_Window* window)
+{
+    SDL_PropertiesID propertiesID = SDL_GetWindowProperties(window);
+
+    ImGui_ImplWGPU_CreateSurfaceInfo create_info = {};
+    create_info.Instance = instance;
+#if defined(SDL_PLATFORM_MACOS)
+    {
+        create_info.System = "cocoa";
+        create_info.RawWindow = (void*)SDL_GetPointerProperty(propertiesID, SDL_PROP_WINDOW_COCOA_WINDOW_POINTER, NULL);
+        return ImGui_ImplWGPU_CreateWGPUSurfaceHelper(&create_info);
+    }
+#elif defined(SDL_PLATFORM_LINUX)
+    if (SDL_strcmp(SDL_GetCurrentVideoDriver(), "wayland") == 0)
+    {
+        create_info.System = "wayland";
+        create_info.RawDisplay = (void*)SDL_GetPointerProperty(propertiesID, SDL_PROP_WINDOW_WAYLAND_DISPLAY_POINTER, NULL);
+        create_info.RawSurface = (void*)SDL_GetPointerProperty(propertiesID, SDL_PROP_WINDOW_WAYLAND_SURFACE_POINTER, NULL);
+        return ImGui_ImplWGPU_CreateWGPUSurfaceHelper(&create_info);
+    }
+    else if (!SDL_strcmp(SDL_GetCurrentVideoDriver(), "x11"))
+    {
+        create_info.System = "x11";
+        create_info.RawWindow = (void*)SDL_GetNumberProperty(propertiesID, SDL_PROP_WINDOW_X11_WINDOW_NUMBER, 0);
+        create_info.RawDisplay = (void*)SDL_GetPointerProperty(propertiesID, SDL_PROP_WINDOW_X11_DISPLAY_POINTER, NULL);
+        return ImGui_ImplWGPU_CreateWGPUSurfaceHelper(&create_info);
+    }
+#elif defined(SDL_PLATFORM_WIN32)
+    {
+        create_info.System = "win32";
+        create_info.RawWindow = (void*)SDL_GetPointerProperty(propertiesID, SDL_PROP_WINDOW_WIN32_HWND_POINTER, NULL);
+        create_info.RawInstance = (void*)::GetModuleHandle(NULL);
+        return ImGui_ImplWGPU_CreateWGPUSurfaceHelper(&create_info);
+    }
+#else
+#error "Unsupported WebGPU native platform!"
+    return nullptr;
+#endif
+}
+#endif // #ifndef __EMSCRIPTEN__

examples/example_win32_directx10/main.cpp

@@ -65,21 +65,23 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplWin32_Init(hwnd);
     ImGui_ImplDX10_Init(g_pd3dDevice);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
@@ -198,6 +200,7 @@ int main(int, char**)
 bool CreateDeviceD3D(HWND hWnd)
 {
     // Setup swap chain
+    // This is a basic setup. Optimally could use handle fullscreen mode differently. See #8979 for suggestions.
     DXGI_SWAP_CHAIN_DESC sd;
     ZeroMemory(&sd, sizeof(sd));
     sd.BufferCount = 2;

examples/example_win32_directx11/main.cpp

@@ -65,21 +65,23 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplWin32_Init(hwnd);
     ImGui_ImplDX11_Init(g_pd3dDevice, g_pd3dDeviceContext);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
@@ -198,6 +200,7 @@ int main(int, char**)
 bool CreateDeviceD3D(HWND hWnd)
 {
     // Setup swap chain
+    // This is a basic setup. Optimally could use e.g. DXGI_SWAP_EFFECT_FLIP_DISCARD and handle fullscreen mode differently. See #8979 for suggestions.
     DXGI_SWAP_CHAIN_DESC sd;
     ZeroMemory(&sd, sizeof(sd));
     sd.BufferCount = 2;

examples/example_win32_directx12/example_win32_directx12.vcxproj

@@ -21,34 +21,34 @@
   <PropertyGroup Label="Globals">
     <ProjectGuid>{b4cf9797-519d-4afe-a8f4-5141a6b521d3}</ProjectGuid>
     <RootNamespace>example_win32_directx12</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0.20348.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

examples/example_win32_directx12/main.cpp

@@ -145,7 +145,7 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplWin32_Init(hwnd);
@@ -167,14 +167,16 @@ int main(int, char**)
     //ImGui_ImplDX12_Init(g_pd3dDevice, APP_NUM_FRAMES_IN_FLIGHT, DXGI_FORMAT_R8G8B8A8_UNORM, g_pd3dSrvDescHeap, g_pd3dSrvDescHeap->GetCPUDescriptorHandleForHeapStart(), g_pd3dSrvDescHeap->GetGPUDescriptorHandleForHeapStart());
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
@@ -312,6 +314,7 @@ int main(int, char**)
 bool CreateDeviceD3D(HWND hWnd)
 {
     // Setup swap chain
+    // This is a basic setup. Optimally could handle fullscreen mode differently. See #8979 for suggestions.
     DXGI_SWAP_CHAIN_DESC1 sd;
     {
         ZeroMemory(&sd, sizeof(sd));
@@ -350,6 +353,15 @@ bool CreateDeviceD3D(HWND hWnd)
         pInfoQueue->SetBreakOnSeverity(D3D12_MESSAGE_SEVERITY_ERROR, true);
         pInfoQueue->SetBreakOnSeverity(D3D12_MESSAGE_SEVERITY_CORRUPTION, true);
         pInfoQueue->SetBreakOnSeverity(D3D12_MESSAGE_SEVERITY_WARNING, true);
+
+        // Disable breaking on this warning because of a suspected bug in the D3D12 SDK layer, see #9084 for details.
+        const int D3D12_MESSAGE_ID_FENCE_ZERO_WAIT_ = 1424; // not in all copies of d3d12sdklayers.h
+        D3D12_MESSAGE_ID disabledMessages[] = { (D3D12_MESSAGE_ID)D3D12_MESSAGE_ID_FENCE_ZERO_WAIT_ };
+        D3D12_INFO_QUEUE_FILTER filter = {};
+        filter.DenyList.NumIDs = 1;
+        filter.DenyList.pIDList = disabledMessages;
+        pInfoQueue->AddStorageFilterEntries(&filter);
+
         pInfoQueue->Release();
         pdx12Debug->Release();
     }
@@ -525,7 +537,7 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
             DXGI_SWAP_CHAIN_DESC1 desc = {};
             g_pSwapChain->GetDesc1(&desc);
             HRESULT result = g_pSwapChain->ResizeBuffers(0, (UINT)LOWORD(lParam), (UINT)HIWORD(lParam), desc.Format, desc.Flags);
-            assert(SUCCEEDED(result) && "Failed to resize swapchain.");
+            IM_ASSERT(SUCCEEDED(result) && "Failed to resize swapchain.");
             CreateRenderTarget();
         }
         return 0;

examples/example_win32_directx9/main.cpp

@@ -63,21 +63,23 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplWin32_Init(hwnd);
     ImGui_ImplDX9_Init(g_pd3dDevice);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_win32_opengl3/main.cpp

@@ -37,7 +37,7 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
 int main(int, char**)
 {
     // Make process DPI aware and obtain main monitor scale
-    //ImGui_ImplWin32_EnableDpiAwareness(); // FIXME: This somehow doesn't work in the Win32+OpenGL example. Why?
+    ImGui_ImplWin32_EnableDpiAwareness();
     float main_scale = ImGui_ImplWin32_GetDpiScaleForMonitor(::MonitorFromPoint(POINT{ 0, 0 }, MONITOR_DEFAULTTOPRIMARY));
 
     // Create application window
@@ -73,21 +73,23 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplWin32_InitForOpenGL(hwnd);
     ImGui_ImplOpenGL3_Init();
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");

examples/example_win32_vulkan/main.cpp

@@ -47,7 +47,6 @@ static VkDescriptorPool         g_DescriptorPool = VK_NULL_HANDLE;
 static ImGui_ImplVulkanH_Window g_MainWindowData;
 static uint32_t                 g_MinImageCount = 2;
 static bool                     g_SwapChainRebuild = false;
-static VkImageUsageFlags        g_SwapChainImageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 
 static void check_vk_result(VkResult err)
 {
@@ -191,7 +190,7 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
         pool_info.maxSets = 0;
         for (VkDescriptorPoolSize& pool_size : pool_sizes)
             pool_info.maxSets += pool_size.descriptorCount;
-        pool_info.poolSizeCount = (uint32_t)IM_ARRAYSIZE(pool_sizes);
+        pool_info.poolSizeCount = (uint32_t)IM_COUNTOF(pool_sizes);
         pool_info.pPoolSizes = pool_sizes;
         err = vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool);
         check_vk_result(err);
@@ -202,11 +201,9 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
 // Your real engine/app may not use them.
 static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface, int width, int height)
 {
-    wd->Surface = surface;
-
     // Check for WSI support
     VkBool32 res;
-    vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, wd->Surface, &res);
+    vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, surface, &res);
     if (res != VK_TRUE)
     {
         fprintf(stderr, "Error no WSI support on physical device 0\n");
@@ -216,7 +213,8 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
     // Select Surface Format
     const VkFormat requestSurfaceImageFormat[] = { VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM };
     const VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
-    wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
+    wd->Surface = surface;
+    wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_COUNTOF(requestSurfaceImageFormat), requestSurfaceColorSpace);
 
     // Select Present Mode
 #ifdef APP_USE_UNLIMITED_FRAME_RATE
@@ -224,12 +222,12 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
 #else
     VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_FIFO_KHR };
 #endif
-    wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_modes[0], IM_ARRAYSIZE(present_modes));
+    wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_modes[0], IM_COUNTOF(present_modes));
     //printf("[vulkan] Selected PresentMode = %d\n", wd->PresentMode);
 
     // Create SwapChain, RenderPass, Framebuffer, etc.
     IM_ASSERT(g_MinImageCount >= 2);
-    ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount, g_SwapChainImageUsage);
+    ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount, 0);
 }
 
 static void CleanupVulkan()
@@ -246,9 +244,10 @@ static void CleanupVulkan()
     vkDestroyInstance(g_Instance, g_Allocator);
 }
 
-static void CleanupVulkanWindow()
+static void CleanupVulkanWindow(ImGui_ImplVulkanH_Window* wd)
 {
-    ImGui_ImplVulkanH_DestroyWindow(g_Instance, g_Device, &g_MainWindowData, g_Allocator);
+    ImGui_ImplVulkanH_DestroyWindow(g_Instance, g_Device, wd, g_Allocator);
+    vkDestroySurfaceKHR(g_Instance, wd->Surface, g_Allocator);
 }
 
 static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
@@ -391,7 +390,7 @@ int main(int, char**)
     // Setup scaling
     ImGuiStyle& style = ImGui::GetStyle();
     style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
+    style.FontScaleDpi = main_scale;        // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor)
 
     // Setup Platform/Renderer backends
     ImGui_ImplWin32_Init(hwnd);
@@ -414,14 +413,16 @@ int main(int, char**)
     ImGui_ImplVulkan_Init(&init_info);
 
     // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap().
+    //   This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold.
+    // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+    // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit).
+    // - Read 'docs/FONTS.md' for more instructions and details.
+    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
+    //io.Fonts->AddFontDefaultVector();
+    //io.Fonts->AddFontDefaultBitmap();
     //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
     //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
@@ -515,7 +516,7 @@ int main(int, char**)
     ImGui_ImplWin32_Shutdown();
     ImGui::DestroyContext();
 
-    CleanupVulkanWindow();
+    CleanupVulkanWindow(&g_MainWindowData);
     CleanupVulkan();
 
     ::DestroyWindow(hwnd);
@@ -550,7 +551,7 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
             if (fb_width > 0 && fb_height > 0 && (g_SwapChainRebuild || g_MainWindowData.Width != fb_width || g_MainWindowData.Height != fb_height))
             {
                 ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount);
-                ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, &g_MainWindowData, g_QueueFamily, g_Allocator, fb_width, fb_height, g_MinImageCount, g_SwapChainImageUsage);
+                ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, &g_MainWindowData, g_QueueFamily, g_Allocator, fb_width, fb_height, g_MinImageCount, 0);
                 g_MainWindowData.FrameIndex = 0;
                 g_SwapChainRebuild = false;
             }

examples/imgui_examples.sln

@@ -41,6 +41,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_sdl3_sdlgpu3", "exa
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_sdl3_directx11", "example_sdl3_directx11\example_sdl3_directx11.vcxproj", "{009DAC16-1A9C-47BE-9770-A30A046E8090}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_null", "example_null\example_null.vcxproj", "{1A0BF63C-18EF-4BAE-A8DA-055481B11F5D}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Win32 = Debug|Win32
@@ -201,6 +203,14 @@ Global
 		{009DAC16-1A9C-47BE-9770-A30A046E8090}.Release|Win32.Build.0 = Release|Win32
 		{009DAC16-1A9C-47BE-9770-A30A046E8090}.Release|x64.ActiveCfg = Release|x64
 		{009DAC16-1A9C-47BE-9770-A30A046E8090}.Release|x64.Build.0 = Release|x64
+		{1A0BF63C-18EF-4BAE-A8DA-055481B11F5D}.Debug|Win32.ActiveCfg = Debug|Win32
+		{1A0BF63C-18EF-4BAE-A8DA-055481B11F5D}.Debug|Win32.Build.0 = Debug|Win32
+		{1A0BF63C-18EF-4BAE-A8DA-055481B11F5D}.Debug|x64.ActiveCfg = Debug|x64
+		{1A0BF63C-18EF-4BAE-A8DA-055481B11F5D}.Debug|x64.Build.0 = Debug|x64
+		{1A0BF63C-18EF-4BAE-A8DA-055481B11F5D}.Release|Win32.ActiveCfg = Release|Win32
+		{1A0BF63C-18EF-4BAE-A8DA-055481B11F5D}.Release|Win32.Build.0 = Release|Win32
+		{1A0BF63C-18EF-4BAE-A8DA-055481B11F5D}.Release|x64.ActiveCfg = Release|x64
+		{1A0BF63C-18EF-4BAE-A8DA-055481B11F5D}.Release|x64.Build.0 = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE