要为Walt添加更多答案：肯定是不可能的。当您拦截任何键盘事件时，它们将被分派到您的应用程序窗口或系统挂钩所有类似但不是Ctrl + Alt + Del。这是系统工作的原因，原因很明显。



现在，该怎么办？

您需要自助服务终端模式。在这里阅读：

使用C＃以Kiosk模式运行网站 [ ^ ]，

c＃program ctrl-alt-del screen windows 7 [ ^ ]。

-SA

To add more to the answer by Walt: it is certainly impossible. When you intercept any keyboard events, they are dispatched to your application window or system hook everything similar but not Ctrl+Alt+Del. This is how system work, for obvious reasons.

Now, what to do?
You need kiosk mode. Read about it here:
Running a Web Site in Kiosk Mode with C#[^],
c# program ctrl-alt-del screen windows 7[^].

—SA

CTRL + ALT + DEL是一个低级Windows功能，所以我不知道有什么好的方法可以禁用它，除了更换部分Windows系统。



为什么你需要改变Windows的工作方式吗？

CTRL+ALT+DEL is a low level Windows function, so I don't know of any good way to disable it, other than replacing part of the Windows system.

Why do you need to change the way Windows works?

你不能从你的应用程序代码中禁用Ctrl-Alt-Del，即使是低级别的键盘钩子也是如此。原因是因为CAD是Windows安全系统的一部分，而不是任何用户模式应用程序的一部分。



有办法实现，但是，像Walt所说，您必须替换某些Windows库才能执行此操作。这不是任何用户模式代码都可以做到的。



不，我会告诉你如何做到这一点，因为从来没有禁用组合键的一个很好的理由。

You cannot disable Ctrl-Alt-Del from your application code, not even with a low-level keyboard hook. The reason is because C-A-D is part of Windows security system, NOT part of any user-mode application.

There are ways of doing it, but, like Walt said, you have to replace certain Windows libraries to do it. This is not something any user-mode code is going to be able to do.

No, I'm going to tell you how to do it because there is never a good reason to disable the key combination.