Hi, everyone. I am using D3DApplication in my program. If i minimize my program, when i restored it, it is just blank and returns an error message. Can someone who is familiar with the D3DApplication tell me what functions of the following it will be called when i restored my program? Thanks. Also can someone tell me what to do to fix the problem? Thanks again. :) OneTimeSceneInit InitDeviceObjects RestoreDeviceObjects FrameMove Render InvalidateDeviceObjects DeleteDeviceObjects FinalCleanUp

I figured it out now. It calls InvalidateDeviceObjects first, then calls RestoreDeviceObjects. Now I fix the problem.