挂机锁屏工具，（内有二款）本人原创。通过注册表修改和键盘钩子屏蔽了所有的系统热键，完美无错！可以说是目前互联网上公开源码最好用的挂机锁。-Hook lock screen tool (with the second paragraph) I original. Keyboard hook through the registry modification and shielding of all the system hot key,