Backends: SDl3: Fixed Platform_OpenInShellFn() return value. (#9027)

backends/imgui_impl_sdl3.cpp

@@ -20,6 +20,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  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)
@@ -505,7 +506,7 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
     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;

docs/CHANGELOG.txt

@@ -58,6 +58,8 @@ Other Changes:
   context-menus. (#8200, #9015)
 - Backends: GLFW: fixed building on Linux platforms where Wayland headers
   are not available. (#9024, #8969, #8921, #8920) [@jagot] 
+- Backends: SDL3: fixed Platform_OpenInShellFn() return value (the return value
+  was unused in core but might be used by a direct caller). (#9027) [@achabense]
 - Backends: Vulkan: added IMGUI_IMPL_VULKAN_VOLK_FILENAME to configure path to
   Volk (default to "volk.h"). (#9008, #7722, #6582, #4854) [@mwlasiuk]
 - Backends: WebGPU: update to compile with Dawn and Emscripten's 4.0.10+

imgui.h

@@ -3942,7 +3942,7 @@ struct ImGuiPlatformIO
     void*       Platform_ClipboardUserData;
 
     // Optional: Open link/folder/file in OS Shell
-    // (default to use ShellExecuteW() on Windows, system() on Linux/Mac)
+    // (default to use ShellExecuteW() on Windows, system() on Linux/Mac. expected to return false on failure, but some platforms may always return true)
     bool        (*Platform_OpenInShellFn)(ImGuiContext* ctx, const char* path);
     void*       Platform_OpenInShellUserData;