Obsoleted the io.RenderDrawListsFn callback, you can call your graphics engine render function after ImGui::Render(). Use ImGui::GetDrawData() to retrieve the ImDrawData* to display..(#1599)

Examples: Updated examples.

examples/directx9_example/imgui_impl_dx9.h

@@ -13,6 +13,7 @@ struct IDirect3DDevice9;
 IMGUI_API bool        ImGui_ImplDX9_Init(void* hwnd, IDirect3DDevice9* device);
 IMGUI_API void        ImGui_ImplDX9_Shutdown();
 IMGUI_API void        ImGui_ImplDX9_NewFrame();
+IMGUI_API void        ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data);
 
 // Use if you want to reset your rendering device without losing ImGui state.
 IMGUI_API void        ImGui_ImplDX9_InvalidateDeviceObjects();