针对Windows XP电源管理的例子，包含了两个代码，一个是备份，恢复电源设置选项，另一个是直接设置笔记本关闭屏幕的操作。如果要对Windows电源管理编程可以参考这个代码。-A sample source for "Windows XP Power Management", there are two source code, one is Backup/Restore power settings, another is dire