Disable Ctrl+Alt+Del from C#

[WebStar]

I need to know how can I disable ctrl+alt+del key combination in windows 98/Me and XP/2000(if it's possible). Thank you!

 

[Dinobrago]

What exactly are you trying to accomplish?

Do you want a C# program that will capture that key combination or are you looking for a way to disable ctrl-alt-del from a system?

The first is straight-forward but I don't think it will accomplish what you are appear to be asking for. ---
dino

 

[WebStar]

I have a program that starts as shell, instead of explorer.exe. So I have a restricted policy on what windows are alowed to be opend. But with Ctrl+Alt+Del my program can be stoped. In win2000/xp the user can start explorer... and stuff. I wanna disable this combination from the entire system.

 

[Dinobrago]

This is VB.NET code (sorry) but it should head you in the right direction. Essentially, your code will need to consume the event generated from the keyboard. So, you create an OnKeyPress event handler which checks each key press event. If it's ctrl-alt-del & do nothing, otherwise, you'll need to pass the event onto the parent object so that you can do things, like, type etc.

protected overrides sub OnKeyPress (kea as KeyEventArgs)
select kea.keycode
   case Keys.Right
         messagebox.Show("Right key&quot
   case keys.left
         messagebox.show("Left key&quot
   etc.
end select
end sub ---
dino

 

[chiph]

Dino -
Ctrl-Alt-Del is called the Secure Attention Sequence, and is grabbed by the OS before it enters the message loop, so your program will never see it.

WebStar -
Take a look at these knowledgebase articles:

http://support.microsoft.com/default.aspx?scid=kb;en-us;125614

http://support.microsoft.com/default.aspx?scid=kb;en-us;308226

In short, you can't disable it without writing a custom Gina.DLL, which requires the Windows DDK (device driver kit).

Chip H.

 

[WebStar]

ok...i can't do it under win2000 and xp but what about 98 and Me?

 

[Dinobrago]

Ouch! -1 star! Thanks for catching that. -d