使用directshow代替opencv的vfw的源代码-The vfw directshow instead of using the source code opencv

AVICap窗口类是VFW（Video for Windows）*的一个重要组成部分，它的主要作用是实现视频的捕获。这是一个源码的例子。-AVICap window class is a VFW (Video for Windows)* is an important component of its primary role is to implement video capture. This is a source code example.