Some related theories include broadcasting mode of digital video automatic broadcasting system , device control protocol, interface technology.
本文所涉及的相关理论有：数字视频自动播出系统的播出方式、设备控制协议、接口技术等。
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When you use a video card-supported cursor, the Graphics DeviceInterface (GDI) gives the video card a bitmap and a mask and says, "OK, this is the mouse cursor."
Besides playing the audio and video resource from CDROM, NVD also could play the audio and video resource from network or from mobile storage device across the USB interface.