类似QQ的截屏软件代码。需要的可以看看，还是不错的，加入了热键-QQ screenshots similar software code. Need to look at, or good, joined the hotkey

qt环境下的视频播放器，可对一般的视频进行播放，可单帧播放，可查看播放信息，打开注释的代码，即可显示打印。-Qt environment video player, but for general video playback, can be a single frame, can view the information, open the comments of code, can show the print.