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From: Paul Brook <paul@codesourcery.com>
Subject: Re: [Qemu-devel] getting past the ctrl-alt-del login in NT
Date: Sun, 25 Sep 2005 14:33:52 +0100
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To: qemu-devel@nongnu.org, Guillaume POIRIER <poirierg@gmail.com>

> > I have an NT4 installation under QEMU on my Linux box - and in grab
> > mode, all I do is... press CTRL-ALT-DEL. Clicking in the window or
> > hitting CTRL-ALT enters grab mode.
>
> FWIW: the CTRL-ALT-DEL sequence has been chosen so that it can't be
> caught by a any program but windows (that to prevent trojan horses to
> log your password instead of Windows's logging window). That means
> that it's probably not possible to directly send the CTRL-ALT-DEL
> sequence, but instead you need to map another series of keys that qemu
> can send to the guest OS.

That's only true if you're on a windows host.  There's nothing intrinsically 
special about ctrl-alt-del.

Many environments do trap that combination before it gets to user 
applications, mainly for consistency with windows/dos, but it's by no means 
universal.

Paul