Method RenderDimmedBackgroundBehindWindow

KBotExt/imgui/imgui.cpp:4882–4907

}

static void ImGui::RenderDimmedBackgroundBehindWindow(ImGuiWindow* window, ImU32 col)
{
	if ((col & IM_COL32_A_MASK) == 0)
		return;

	ImGuiViewportP* viewport = (ImGuiViewportP*)GetMainViewport();
	ImRect viewport_rect = viewport->GetMainRect();

	// Draw behind window by moving the draw command at the FRONT of the draw list
	{
		// We've already called AddWindowToDrawData() which called DrawList->ChannelsMerge() on DockNodeHost windows,
		// and draw list have been trimmed already, hence the explicit recreation of a draw command if missing.
		// FIXME: This is creating complication, might be simpler if we could inject a drawlist in drawdata at a given position and not attempt to manipulate ImDrawCmd order.
		ImDrawList* draw_list = window->RootWindow->DrawList;
		if (draw_list->CmdBuffer.Size == 0)
			draw_list->AddDrawCmd();
		draw_list->PushClipRect(viewport_rect.Min - ImVec2(1, 1), viewport_rect.Max + ImVec2(1, 1), false); // FIXME: Need to stricty ensure ImDrawCmd are not merged (ElemCount==6 checks below will verify that)
		draw_list->AddRectFilled(viewport_rect.Min, viewport_rect.Max, col);
		ImDrawCmd cmd = draw_list->CmdBuffer.back();
		IM_ASSERT(cmd.ElemCount == 6);
		draw_list->CmdBuffer.pop_back();
		draw_list->CmdBuffer.push_front(cmd);
		draw_list->AddDrawCmd(); // We need to create a command as CmdBuffer.back().IdxOffset won't be correct if we append to same command.
		draw_list->PopClipRect();
	}
}

ImGuiWindow* ImGui::FindBottomMostVisibleWindowWithinBeginStack(ImGuiWindow* parent_window)
{