你好：
请问你的系统是WindowsRT还是Windows8/8.1? 你准备开发的是普通的C#桌面应用还是Windows Store Apps? 如果是Windows Store Apps 请将问题发到这个论坛：
http://msdn.microsoft.com/zh-CN/windows/apps/br229515
如果是普通的桌面应用程序比如Windows Forms 或者WPF，你需要借助一些WinAPI或者第三方的类库来完成，.net framework本身是没有现成的方法的，参考这篇博客：
http://www.cnblogs.com/houfeng/archive/2009/07/26/1531526.html
http://www.cnblogs.com/zhuweisky/p/3593917.html
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