A
Anatoly
Is it possible to catch CTRL+ALT+DEL combination and/or prevent user to
close application from Task Manager?
Thanks.
close application from Task Manager?
Thanks.
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C
CT
If we could just answer all questions in this short fashion...<g>
C
Conrad Zhang
The OS catches CTRL+ALT+DEL combination, and it will never report it to any
applications. This is intentional for security reason, so that no
application can fake a login screen.
So the answer is NO.
applications. This is intentional for security reason, so that no
application can fake a login screen.
So the answer is NO.
CT said:If we could just answer all questions in this short fashion...<g>
C
CT
I think you completely missed the point
--
Carsten Thomsen
http://www.apress.com/book/bookDisplay.html?bID=105
--
Carsten Thomsen
http://www.apress.com/book/bookDisplay.html?bID=105
Conrad Zhang said:The OS catches CTRL+ALT+DEL combination, and it will never report it to any
applications. This is intentional for security reason, so that no
application can fake a login screen.
So the answer is NO.
K
Kristofer Andersson
Anatoly said:Is it possible to catch CTRL+ALT+DEL combination and/or prevent user to
close application from Task Manager?
Thanks.
http://www.sysinternals.com/ntw2k/source/ctrl2cap.shtml
D
Daniel O'Connell
I havn't tested it for Ctrl+Alt+Del, but:
Windows provides a hooking mechanism for computer based training. Basically,
you register a callback wtih windows that recieves messages when certain
events occur. In this case, you need to register a CBT Hook and monitor for
the HCBT_SYSCOMMAND message. HCBT_SYSCOMMAND is defined as:
"A system command is about to be carried out. This allows a CBT application
to prevent task switching by means of hot keys." (Platform SDK)
Look up SetWindowsHookEx and CBTProc in the platform SDK. You will have to
do some interop, probably have to write an unmanaged Dll that contains the
hook function, but i think the capacity is there.
Windows provides a hooking mechanism for computer based training. Basically,
you register a callback wtih windows that recieves messages when certain
events occur. In this case, you need to register a CBT Hook and monitor for
the HCBT_SYSCOMMAND message. HCBT_SYSCOMMAND is defined as:
"A system command is about to be carried out. This allows a CBT application
to prevent task switching by means of hot keys." (Platform SDK)
Look up SetWindowsHookEx and CBTProc in the platform SDK. You will have to
do some interop, probably have to write an unmanaged Dll that contains the
hook function, but i think the capacity is there.