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我正在编写一个应用程序来监视某些事件。win事件发生时，电脑显示登录屏幕（按+时您会看到此屏幕L）。当我收到事件时，是否可以在登录屏幕上显示一个窗口？

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In case any one run into this problem , I put my solution here.

I think I have made it possisble by injecting a dll to the winlogon.exe proccess.The dll can start a thread and pop up a window.

Maybe there is a better solution ...

于 2013-07-22T18:55:47.287 回答