本文主要介绍了微软公司VFW(Video for Windows)软件包中的AVICap窗口类的成员函数和一些关键宏，以及与编写视频捕捉程序紧密相关的几个结构体。最后，通过一个视频捕捉应用程序，展示了如何具体实现视频捕捉，以及要注意的相关问题。-This article mainly introduced the Microsoft VFW (Video for Windows) of the software package AVICap window class member functions and some key macros, and Video capture and write program closely related several structures. Finally, through a video capture application that shows how to concrete realization video capture, and to pay attention to the related problems.