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From: Henrik Enberg <henrik+news@enberg.org>
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Subject: Re: window manager hints
Date: Fri, 12 Sep 2003 23:56:06 +0200
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Jason Dufair <jase@dufair.org> writes:

> I'm working with the folks implementing/porting XFree86 to Windows via
> Cygwin.  They've implemented a means of using Windows as the "window
> manager," but Emacs doesn't minimize properly with a C-z.  Apparently
> the maintainer is not catching a window manager hint or something.  Can
> someone point me in the right direction as to how he/we might catch that
> C-z and have <Windows-as-WM> minimize the Emacs window.

Check the function `x_iconify_frame' in xterm.c in the Emacs sources to
see what it does.  Basically, what it boils down to is Emacs running
`XIconifyWindow' which sends a `ClientMessage' with `IconicState' to X.
See if the windowmanager listens to the `WM_CHANGE_STATE' hint properly.