可以对视频播放进行多画面切换对话框显示，达到多画面切换功能-Can multi-screen video playback to switch the dialog box displayed, reach the screen switching function

基于对话框和DX控件编程,利用控件循环播放视频文件,并且实现无闪烁切换,同时潜入PCI8408板卡驱动,可以从外部采集信号,实现视频切换,可用于模拟实体书页翻动的效果-Dialog box and DX controls programming control loop video files, and flicker-free switching, sneak into the PCI8408 board drive signal can be collected from the exter