用VC++写的锁定屏幕、关机、隐藏到托盘等功能的小程序源代码，还可以屏蔽 Ctrl+Alt+Del、加入到系统启动组等，另外它还演示了一个漂亮的软件启动界面的实现，本源代码在VC6下顺利编译。-Using VC++ to write the lock screen, shutdown, hide to tray features a small source code can also be shielded Ctrl+ Alt+ Del, to join the group, such as