CTRL + ALT + DEL Disable

[BoB]

Hi, you can create a new desktop object, which avoids Alt + Tab, Ctrl + Alt + Del ..

hOldThreadDesktop := GetThreadDesktop(GetCurrentThreadId);
hOldInputDesktop := OpenInputDesktop(0, FALSE, DESKTOP_CREATEWINDOW + DESKTOP_SWITCHDESKTOP);
hLockedDesktop := CreateDesktop('LockedDesktop', nil, nil, 0, DESKTOP_CREATEWINDOW + DESKTOP_SWITCHDESKTOP, nil);
SetThreadDesktop(hLockedDesktop);
SwitchDesktop(hLockedDesktop);

..Then run your application within that new desktop ..

SI.cb := SizeOf(StartupInfo);
SI.lpDesktop := PChar('LockedDesktop');
If CreateProcess(nil, 'YourApp.exe', nil, nil, True, 0, nil, nil, SI, PI) Then
  WaitForSingleObject(PI.hProcess, INFINITE);

..And when your app exits, return to 'real' desktop ..

if hOldInputDesktop <> 0 then SwitchDesktop(hOldInputDesktop);
if hOldThreadDesktop <> 0 then SetThreadDesktop(hOldThreadDesktop);
if hLockedDesktop <> 0 then CloseDesktop(hLockedDesktop);

See Desktops @ MSDN

Have fun!
BoB

[ontryit]

Originally Posted by BoB

Hi, you can create a new desktop object, which avoids Alt + Tab, Ctrl + Alt + Del ..

hOldThreadDesktop := GetThreadDesktop(GetCurrentThreadId);
hOldInputDesktop := OpenInputDesktop(0, FALSE, DESKTOP_CREATEWINDOW + DESKTOP_SWITCHDESKTOP);
hLockedDesktop := CreateDesktop('LockedDesktop', nil, nil, 0, DESKTOP_CREATEWINDOW + DESKTOP_SWITCHDESKTOP, nil);
SetThreadDesktop(hLockedDesktop);
SwitchDesktop(hLockedDesktop);

..Then run your application within that new desktop ..

SI.cb := SizeOf(StartupInfo);
SI.lpDesktop := PChar('LockedDesktop');
If CreateProcess(nil, 'YourApp.exe', nil, nil, True, 0, nil, nil, SI, PI) Then
  WaitForSingleObject(PI.hProcess, INFINITE);

..And when your app exits, return to 'real' desktop ..

if hOldInputDesktop <> 0 then SwitchDesktop(hOldInputDesktop);
if hOldThreadDesktop <> 0 then SetThreadDesktop(hOldThreadDesktop);
if hLockedDesktop <> 0 then CloseDesktop(hLockedDesktop);

See Desktops @ MSDN

Have fun!
BoB

This solution was recommended by Microsoft but only for XP, you need to add a code to avoid taskmgr from shown on the default desktop when the the ctrl+alt+del/ctrl+shift+esc keys was pressed on xp in order to not make it suspiously looking. on W7 this solution can't be disable ctrl+alt+del keys