如何在C＃中捕获windows键，alt + tab，ctrl + alt + delete？

Question

如何使用C＃在Windows应用程序中捕获Windows键， Alt + Tab和Ctrl + Alt + Delete ？

Answer 1

You can capture Ctrl-Alt-Delete. But you need to implement your own GINA dll which is loaded by Winlogon.

You'll need to code this up in C or C++ as it needs to be a native DLL.

Answer 2

As Jan stated, you can't capture CTRL-ALT-DEL without writing your own GINA.

For the Windows or ALT-TAB keys, you can look at these for help:

Capturing Keystrokes without Focus (SO near-duplicate)

How To Set A Windows Hook

Hooks (low-level, but will explain what you need for the P/Invoke)

Answer 3

Some Remote Management Software and Virtual Machines do this. If you press [CTRL]+[ALT]+[DEL] the specific Windows Dialog will still opens, but the Application also displays, that you have pressed [CTRL]+[ALT]+[DEL] and probably wanted it t become effective on the Target Machine and not your host. It seams rather easy to capture these keys, but cancelling the Event may be harder.

Answer 4

几乎按照定义，你不能 “陷阱”ctrl-alt-delete。

Answer 5

AFAIK Ctrl + Alt + Delete cannot be captured using an application.

See this question to get some more idea: How to trap the keyboard strokes on ac# win forms application (CTRl + alt +Del)