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Home/ Questions/Q 132655
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Asked: May 11, 20262026-05-11T06:17:49+00:00 2026-05-11T06:17:49+00:00

I need the key code for Alt + Ctrl + Del in c#, for

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I need the key code for Alt+Ctrl+Del in c#, for example

const int KEYEVENTF_KEYUP = 0x2; const int KEYEVENTF_KEYDOWN = 0x0;       keybd_event(0x11, 0, KEYEVENTF_KEYDOWN, 0); keybd_event(0x41, 0, KEYEVENTF_KEYDOWN, 0); keybd_event(0x11, 0, KEYEVENTF_KEYUP, 0);  keybd_event(0x41, 0, KEYEVENTF_KEYUP, 0);  

this is the code for ctrl+a.

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  1. 2026-05-11T06:17:49+00:00Added an answer on May 11, 2026 at 6:17 am

    Alt+Ctrl+Del is used by the operating system (I remember from the the old days, even the BIOS).

    So I don’t think you can use it in C#, not even for sending the keystrokes.

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