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Viewport: Comments about honoring ImGuiViewportFlags_NoInputs and MouseHoveredViewport. (#1542)

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omar
2018-04-05 12:00:07 +02:00
parent c23b5463c7
commit 84c6ea0cee
3 changed files with 9 additions and 2 deletions
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4
examples/imgui_impl_glfw.cpp
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@@ -387,6 +387,10 @@ static LRESULT CALLBACK WndProcNoInputs(HWND hWnd, UINT msg, WPARAM wParam, LPAR
{
if (msg == WM_NCHITTEST)
{
// Let mouse pass-through the window. This will allow the back-end to set io.MouseHoveredViewport properly (which is OPTIONAL).
// The ImGuiViewportFlags_NoInputs flag is set while dragging a viewport, as want to detect the window behind the one we are dragging.
// If you cannot easily access those viewport flags from your windowing/event code: you may manually synchronize its state e.g. in
// your main loop after calling UpdatePlatformWindows(). Iterate all viewports/platform windows and pass the flag to your windowing system.
ImGuiViewport* viewport = (ImGuiViewport*)::GetPropA(hWnd, "IMGUI_VIEWPORT");
if (viewport->Flags & ImGuiViewportFlags_NoInputs)
return HTTRANSPARENT;