Method EndFrame

KBotExt/imgui/imgui.cpp:4965–5057

This is normally called by Render(). You may want to call it directly if you want to avoid calling Render() but the gain will be very minimal.

// This is normally called by Render(). You may want to call it directly if you want to avoid calling Render() but the gain will be very minimal.
void ImGui::EndFrame()
{
	ImGuiContext& g = *GImGui;
	IM_ASSERT(g.Initialized);

	// Don't process EndFrame() multiple times.
	if (g.FrameCountEnded == g.FrameCount)
		return;
	IM_ASSERT(g.WithinFrameScope && "Forgot to call ImGui::NewFrame()?");

	CallContextHooks(&g, ImGuiContextHookType_EndFramePre);

	ErrorCheckEndFrameSanityChecks();

	// Notify Platform/OS when our Input Method Editor cursor has moved (e.g. CJK inputs using Microsoft IME)
	ImGuiPlatformImeData* ime_data = &g.PlatformImeData;
	if (g.IO.SetPlatformImeDataFn && memcmp(ime_data, &g.PlatformImeDataPrev, sizeof(ImGuiPlatformImeData)) != 0)
	{
		IMGUI_DEBUG_LOG_IO("[io] Calling io.SetPlatformImeDataFn(): WantVisible: %d, InputPos (%.2f,%.2f)\n", ime_data->WantVisible, ime_data->InputPos.x, ime_data->InputPos.y);
		ImGuiViewport* viewport = GetMainViewport();
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
		if (viewport->PlatformHandleRaw == NULL && g.IO.ImeWindowHandle != NULL)
		{
			viewport->PlatformHandleRaw = g.IO.ImeWindowHandle;
			g.IO.SetPlatformImeDataFn(viewport, ime_data);
			viewport->PlatformHandleRaw = NULL;
		}
		else
#endif
		{
			g.IO.SetPlatformImeDataFn(viewport, ime_data);
		}
	}

	// Hide implicit/fallback "Debug" window if it hasn't been used
	g.WithinFrameScopeWithImplicitWindow = false;
	if (g.CurrentWindow && !g.CurrentWindow->WriteAccessed)
		g.CurrentWindow->Active = false;
	End();

	// Update navigation: CTRL+Tab, wrap-around requests
	NavEndFrame();

	// Drag and Drop: Elapse payload (if delivered, or if source stops being submitted)
	if (g.DragDropActive)
	{
		bool is_delivered = g.DragDropPayload.Delivery;
		bool is_elapsed = (g.DragDropPayload.DataFrameCount + 1 < g.FrameCount) && ((g.DragDropSourceFlags & ImGuiDragDropFlags_SourceAutoExpirePayload) || !IsMouseDown(g.DragDropMouseButton));
		if (is_delivered || is_elapsed)
			ClearDragDrop();
	}

	// Drag and Drop: Fallback for source tooltip. This is not ideal but better than nothing.
	if (g.DragDropActive && g.DragDropSourceFrameCount < g.FrameCount && !(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
	{
		g.DragDropWithinSource = true;
		SetTooltip("...");
		g.DragDropWithinSource = false;