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/marmalade_example/imgui_impl_marmalade.h

@@ -14,6 +14,7 @@
 IMGUI_API bool        ImGui_Marmalade_Init(bool install_callbacks);
 IMGUI_API void        ImGui_Marmalade_Shutdown();
 IMGUI_API void        ImGui_Marmalade_NewFrame();
+IMGUI_API void        ImGui_Marmalade_RenderDrawData(ImDrawData* draw_data);
 
 // Use if you want to reset your rendering device without losing ImGui state.
 IMGUI_API void        ImGui_Marmalade_InvalidateDeviceObjects();