Detecting Ctrl-Alt-Del in Windows

Chris Angelico rosuav at
Fri Sep 2 17:47:54 EDT 2011

On Sat, Sep 3, 2011 at 2:26 AM, Den <patentsvnc at> wrote:
> I've been doing some more thinking on what I want.  This may be a
> better explanation.  Is there a way of detecting if my program has
> lost "focus" (I'm not sure the correct term)?  For example, if someone
> is typing in my program, but some other program takes control (or CAD
> has been pressed) I would like simply to log that.  I have no interest
> in trying to hijack or interfere with anything, simply log it.

Ah, then yes most definitely! If you're writing a GUI program, a
LostFocus event is a normal thing to be able to catch.

Now, if you're writing a console program, that mightn't be so easy.
But certainly you can detect loss of focus to any window that you


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