说明：   本文提供的视频捕捉类CcaptureVideo和示例，在Win2K + DirectX9 SDK + VC6 环境下调试通过。注意：编译时需要Strmiids.lib Quartz.lib两个库文件(DirectX9 SDK自带)。
(This paper provides video capture and category CcaptureVideo example, in Win2K DirectX9 SDK VC6 through debugging environment. Attention : Build need Strmiids.lib Quartz.lib two libraries (DirectX9 SDK own).)