Backends: GLFW, SDL2, SDL3: include GLFW/SDL version number in io.BackendPlatformName.

# Conflicts:
#	backends/imgui_impl_sdl2.cpp
#	backends/imgui_impl_sdl3.cpp

backends/imgui_impl_glfw.cpp

@@ -117,6 +117,7 @@
 #ifndef _WIN32
 #include <unistd.h>             // for usleep()
 #endif
+#include <stdio.h>              // for snprintf()
 
 #ifdef __EMSCRIPTEN__
 #include <emscripten.h>
@@ -157,6 +158,7 @@ struct ImGui_ImplGlfw_Data
     ImVec2                  LastValidMousePos;
     bool                    InstalledCallbacks;
     bool                    CallbacksChainForAllWindows;
+    char                    BackendPlatformName[32];
 #ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
     const char*             CanvasSelector;
 #endif
@@ -593,8 +595,9 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
 
     // Setup backend capabilities flags
     ImGui_ImplGlfw_Data* bd = IM_NEW(ImGui_ImplGlfw_Data)();
+    snprintf(bd->BackendPlatformName, sizeof(bd->BackendPlatformName), "imgui_impl_glfw (%d)", GLFW_VERSION_COMBINED);
     io.BackendPlatformUserData = (void*)bd;
-    io.BackendPlatformName = "imgui_impl_glfw";
+    io.BackendPlatformName = bd->BackendPlatformName;
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;         // We can honor GetMouseCursor() values (optional)
     io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;          // We can honor io.WantSetMousePos requests (optional, rarely used)
 

backends/imgui_impl_sdl2.cpp

@@ -109,6 +109,7 @@
 // SDL
 #include <SDL.h>
 #include <SDL_syswm.h>
+#include <stdio.h>              // for snprintf()
 #ifdef __APPLE__
 #include <TargetConditionals.h>
 #endif
@@ -135,6 +136,7 @@ struct ImGui_ImplSDL2_Data
     SDL_Renderer*           Renderer;
     Uint64                  Time;
     char*                   ClipboardTextData;
+    char                    BackendPlatformName[40];
 
     // Mouse handling
     Uint32                  MouseWindowID;
@@ -476,12 +478,20 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer, void
     IMGUI_CHECKVERSION();
     IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
 
+    // Obtain compiled and runtime versions
+    SDL_version ver_compiled;
+    SDL_version ver_runtime;
+    SDL_VERSION(&ver_compiled);
+    SDL_GetVersion(&ver_runtime);
+
     // Setup backend capabilities flags
     ImGui_ImplSDL2_Data* bd = IM_NEW(ImGui_ImplSDL2_Data)();
+    snprintf(bd->BackendPlatformName, sizeof(bd->BackendPlatformName), "imgui_impl_sdl2 (%u.%u.%u, %u.%u.%u)",
+        ver_compiled.major, ver_compiled.minor, ver_compiled.patch, ver_runtime.major, ver_runtime.minor, ver_runtime.patch);
     io.BackendPlatformUserData = (void*)bd;
-    io.BackendPlatformName = "imgui_impl_sdl2";
+    io.BackendPlatformName = bd->BackendPlatformName;
-    io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;       // We can honor GetMouseCursor() values (optional)
+    io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;           // We can honor GetMouseCursor() values (optional)
-    io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;        // We can honor io.WantSetMousePos requests (optional, rarely used)
+    io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;            // We can honor io.WantSetMousePos requests (optional, rarely used)
 
     bd->Window = window;
     bd->WindowID = SDL_GetWindowID(window);

backends/imgui_impl_sdl3.cpp

@@ -69,6 +69,7 @@
 
 // SDL
 #include <SDL3/SDL.h>
+#include <stdio.h>              // for snprintf()
 #if defined(__APPLE__)
 #include <TargetConditionals.h>
 #endif
@@ -101,6 +102,7 @@ struct ImGui_ImplSDL3_Data
     SDL_Renderer*           Renderer;
     Uint64                  Time;
     char*                   ClipboardTextData;
+    char                    BackendPlatformName[40];
 
     // IME handling
     SDL_Window*             ImeWindow;
@@ -465,10 +467,14 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
     IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
     IM_UNUSED(sdl_gl_context); // Unused in this branch
 
+    const int ver_linked = SDL_GetVersion();
+
     // Setup backend capabilities flags
     ImGui_ImplSDL3_Data* bd = IM_NEW(ImGui_ImplSDL3_Data)();
+    snprintf(bd->BackendPlatformName, sizeof(bd->BackendPlatformName), "imgui_impl_sdl3 (%u.%u.%u; %u.%u.%u)",
+        SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_MICRO_VERSION, SDL_VERSIONNUM_MAJOR(ver_linked), SDL_VERSIONNUM_MINOR(ver_linked), SDL_VERSIONNUM_MICRO(ver_linked));
     io.BackendPlatformUserData = (void*)bd;
-    io.BackendPlatformName = "imgui_impl_sdl3";
+    io.BackendPlatformName = bd->BackendPlatformName;
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;           // We can honor GetMouseCursor() values (optional)
     io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;            // We can honor io.WantSetMousePos requests (optional, rarely used)
 

docs/CHANGELOG.txt

@@ -107,6 +107,7 @@ Other changes:
 - Backends: SDL2, SDL3: don't attempt to call SDL_CaptureMouse() on drivers where we don't
   call SDL_GetGlobalMouseState(). This is specifically for Wayland but we currently use
   the same white-list as SDL_GetGlobalMouseState(). (#8561) [@vs49688]
+- Backends: GLFW, SDL2, SDL3: include GLFW/SDL version number in io.BackendPlatformName.
 - Backends: SDL3: Update for SDL3 api changes: revert SDL_GetClipboardText()
   memory ownership change. (#8530, #7801) [@Green-Sky]
 - Backends: SDL3: honor ImGuiPlatformImeData->WantTextInput as an alternative