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Add assert to ImGui_ImplGlfw_DestroyWindow #4666

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Add assert to ImGui_ImplGlfw_DestroyWindow #4666

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6 changes: 6 additions & 0 deletions backends/imgui_impl_glfw.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -688,6 +688,12 @@ static void ImGui_ImplGlfw_CreateWindow(ImGuiViewport* viewport)
static void ImGui_ImplGlfw_DestroyWindow(ImGuiViewport* viewport)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
IM_ASSERT(bd != NULL &&
"No platform backend to shutdown, or already shutdown. Did you "
"shutdown in the correct order? Note that you need to shutdown "
"the Renderer BEFORE the Platform backend (the opposite of "
"Initialization)");

if (ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData)
{
if (vd->WindowOwned)
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