Disable Ctl+Alt+Del; Ctrl+Esc; Ctrl+tab, Alt+Tab, Start button, ctrl+Alt+Del

[thupham]

Dear all friend,
I want disable Ctl+Alt+Del; Ctrl+Esc; Ctrl+tab, Alt+Tab, Start button, ctrl+Alt+Del, lock all keys on the keyboard. Have you ever do it in C#.
Help me.
Thanks for all reply.

[Shashi Sadasivan]

Dear all friend,
I want disable Ctl+Alt+Del; Ctrl+Esc; Ctrl+tab, Alt+Tab, Start button, ctrl+Alt+Del, lock all keys on the keyboard. Have you ever do it in C#.
Help me.
Thanks for all reply.

on the keydown event
do something like

private void frmWorkshopJobs_KeyDown(object sender, KeyEventArgs e)
{
   if (e.Control == true)
   {
      if (e.KeyData == Keys.Escape)
         e.Handled = true;
   }
}

do that for each scenario you want to cover.
however certain keystrokes which are handled by the OS even before you cannot be stopped (like ctrl + Alt + del, windows button, etc)

cheers

[mzmishra]

This article can help you also
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2143470&SiteID=1

[thupham]

I have just used the link http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2143470&SiteID=1,
it 's very helpful, but that example can't disable Ctrl+Alt+Del; Alt+tab; and Alt+Esc.
I'm researching this. If you know more, please show me.
Thanks.

[Plater]

Ctrl+alt+del is supposed to be hardware level (supposed to be...) and isn't supposed to be able to be trapped.
However, there is somewhere where you can "replace" the taskmanager with something else (possibly even nothing?). How I dunno, but I've seen it done.

[thupham]

Can you help me to disable Ctrl+Alt+Del, Alt+tab, Alt+Esc by C#.
Thanks

[Shashi Sadasivan]

Can you help me to disable Ctrl+Alt+Del, Alt+tab, Alt+Esc by C#.
Thanks

hi thupham
Please do not double post.
I think your question was answered, but you did not respond to your post
http://www.thescripts.com/forum/thread736791.html

[Shashi Sadasivan]

Ctrl+alt+del is supposed to be hardware level (supposed to be...) and isn't supposed to be able to be trapped.
However, there is somewhere where you can "replace" the taskmanager with something else (possibly even nothing?). How I dunno, but I've seen it done.

This thread does talk about that, along with 2 other options

[thupham]

I'm waiting for new reply, but no one answer me how to disable Ctrl+Esc; Alt+Esc; Alt+Tab by C#, and may be I have a mistake on posting, so it have double.
Very Sorry.

[CyberSoftHari]

The link you given is pretty good.
You cannot get the exact answer. Just try you can do with that code.

Or you can get a C++ Dll to do all this things.

[thupham]

But in that links, I just combine 2 keys, for example Ctrl+Tab, I can combine 3 keys(Ctrl+Alt+Del), I tried but can't do. Help me please.
Thanks