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Viewports: added ImGuiBackendFlags_HasParentViewportId backend flag. (#8948)

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ocornut
2025-09-30 17:38:06 +02:00
parent b4514ce64a
commit 50a8bb2711
12 changed files with 27 additions and 13 deletions
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3
backends/imgui_impl_win32.cpp
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@@ -189,6 +189,7 @@ static bool ImGui_ImplWin32_InitEx(void* hwnd, bool platform_has_own_dc)
io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports; // We can create multi-viewports on the Platform side (optional)
io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport; // We can call io.AddMouseViewportEvent() with correct data (optional)
io.BackendFlags |= ImGuiBackendFlags_HasParentViewportId; // We can honor viewport->ParentViewportId by applying the corresponding parent/child relationship at platform levle (optional)
bd->hWnd = (HWND)hwnd;
bd->TicksPerSecond = perf_frequency;
@@ -261,7 +262,7 @@ void ImGui_ImplWin32_Shutdown()
io.BackendPlatformName = nullptr;
io.BackendPlatformUserData = nullptr;
io.BackendFlags &= ~(ImGuiBackendFlags_HasMouseCursors | ImGuiBackendFlags_HasSetMousePos | ImGuiBackendFlags_HasGamepad | ImGuiBackendFlags_PlatformHasViewports | ImGuiBackendFlags_HasMouseHoveredViewport);
io.BackendFlags &= ~(ImGuiBackendFlags_HasMouseCursors | ImGuiBackendFlags_HasSetMousePos | ImGuiBackendFlags_HasGamepad | ImGuiBackendFlags_PlatformHasViewports | ImGuiBackendFlags_HasMouseHoveredViewport | ImGuiBackendFlags_HasParentViewportId);
platform_io.ClearPlatformHandlers();
IM_DELETE(bd);
}