Question

I need to initialize a variable when the user presses Ctrl–Alt–Del. Because this key combination is treated differently than others, the Windows Security Dialog Box appears immediately after it is pressed and my program can not detect whether it is pressed.

I tried adding the code below to the KeyDown event, but it does not work.

     if ( (Keyboard.Modifiers == (ModifierKeys.Control | ModifierKeys.Alt)) && Keyboard.IsKeyDown(Key.Delete))
     {
         // Initialize a variable
     }

If it is possible, how can I detect this key combination before the OS detects it? If not, how can I detect it after the OS?

Answer 1

In short, you can’t.