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/main.cpp

@@ -169,6 +169,7 @@ int main(int, char**)
         if (g_pd3dDevice->BeginScene() >= 0)
         {
             ImGui::Render();
+            ImGui_ImplDX9_RenderDrawData(ImGui::GetDrawData());
             g_pd3dDevice->EndScene();
         }
         HRESULT result = g_pd3dDevice->Present(NULL, NULL, NULL, NULL);