本程序用于实现三个摄像头即对三录视频源信号进行采集并在同一个对话框进行显示，本程序为进行三个场景视频源保存及实现三录画面实时的视频监控的基础，希望对于实现多录视频源监控和朋友有所帮助-The procedure used to implement three of the three cameras that recorded the video source signal acquisition and display in a dialog box with the program for