第一個視窗:No hard-ware-acclerated Direct3D devices were found.
Switching to the reference rasterizer,a software device that implements the entire Direct3D feature set,but runs very slowly.
第二個視窗:Warning:nothing will be rendered.
The reference rendering device was selected, but your computer only has a reduced-functionality reference device installed. Install the DirectX SDK to get the full reference device.
第三個視窗:Generic application error. Enable debug output for detailed information. This application will now exit.