在Cntrl + Alt + Del屏幕上显示消息 [英] Showing message on Cntrl+Alt+Del screen

问题描述

有没有办法在Cntrl + alt + del屏幕上显示我的应用程序消息或任何文字.....

Is there any way to show my application message or any text on Cntrl+alt+del screen.....

推荐答案

谢尔盖是完全正确的。您仍然有两个选项可以在登录屏幕上显示一些信息：

1）使用注册表添加登录消息。请参阅： http：//www.techrepublic。 com / blog / window-on-windows / adding-messages-to-windows-7s-logon-screen / 4390 [ ^ ]

2）使用登录壁纸： http：//www.techrepublic .com / blog / window-on-windows / change-and-customize-windows-7s-logon-screen-wallpaper / 2135 [ ^ ]



[更新]

我发现了一个非常有趣的事情： http：// logonscreenlauncher .codeplex.com / [ ^ ]

Sergey is totally right. You still have two options to display some information on logon screen:
1) Use registry to add logon message. See: http://www.techrepublic.com/blog/window-on-windows/adding-messages-to-windows-7s-logon-screen/4390[^]
2) Use logon wallpaper: http://www.techrepublic.com/blog/window-on-windows/change-and-customize-windows-7s-logon-screen-wallpaper/2135[^]

[Update]
I found a really interesting thing for you: http://logonscreenlauncher.codeplex.com/[^]

我认为你不能拦截这个键盘输入任何用户模式代码的级别。我不知道它是否可以在Ring 0代码中完成，但它意味着内核模式驱动程序的级别或类似的东西。



这个键出于明显的安全原因，操作系统隐藏了用户代码进程的组合。如果某些代码阻止Ctrl + Alt + Del，只有重置或电源按钮可以提供帮助，但其操作也可以在系统设置中被阻止。那还有什么呢？只有移除电源...... :-)

-SA

I don''t think you can intercept this keyboard input at the level of any user-mode code. I don''t know if it can be done in Ring 0 code, but it means the level of the kernel-mode driver or something like that.

This key combination is hidden by the OS from the user-code processes, for apparent safety reasons. If some code blocks Ctrl+Alt+Del, only a reset or power button can help, but its operation can also be blocked in system settings. What else to do then? Only removing the power… :-)

—SA

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