用vc6.0开发的directshow usb摄像头视频采集，同时用vc.net做托管dll,在c#中调用。-with vc6.0 development directshow usb camera video collection, using vc.net do care dll, c # call.

在VC++开发环境下 借助DIRECTX插件 直接利用USB驱动 显示视频-In VC++ Development environment with direct access to DIRECTX Plug USB drive to display video