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Backends: Win32: Added ImGui_ImplWin32_EnableAlphaCompositing() helper. (#2766, #3447)

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Pragma linking with dwmapi.lib (Vista-era, ~9 kb). MinGW users will need to link with -ldwmapi.
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ocornut 2021-02-18 15:51:07 +01:00
parent 6a161b8789
commit c154629152
3 changed files with 54 additions and 5 deletions
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9
backends/imgui_impl_win32.h
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@ -18,10 +18,6 @@ IMGUI_IMPL_API bool ImGui_ImplWin32_Init(void* hwnd);
IMGUI_IMPL_API void ImGui_ImplWin32_Shutdown();
IMGUI_IMPL_API void ImGui_ImplWin32_NewFrame();
// Configuration
// - Disable gamepad support
//#define IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
// Win32 message handler your application need 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.
@ -38,3 +34,8 @@ extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg
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
// Transparency related helpers (optional) [experimental]
// - Use to enable alpha compositing transparency with the desktop.
// - Use together with e.g. clearing your framebuffer with zero-alpha.
IMGUI_IMPL_API void ImGui_ImplWin32_EnableAlphaCompositing(void* hwnd); // HWND hwnd