在屏幕录像模块的主窗体中，用户可以设置录像文件名和存储位置，并可以进行录像和抓图，还可以对已有录像文件进行播放、重命名、另存为、查看时间和删除等操作。-In the main window screen video module, the user can set the video file name and location, and can be video and capture of existing video files can also play, rename, save as