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From: asente@wrl.dec.com (Paul Asente)
Newsgroups: comp.windows.x
Subject: Re: Adding event handlers to windows
Message-ID: <1990Jun13.051102.16512@wrl.dec.com>
Date: 13 Jun 90 05:11:02 GMT
References: <1445.9006120916@kheops.cmi.no> <9006121416.AA07750@expo.lcs.mit.edu>
Sender: news@wrl.dec.com (News)
Organization: DEC Western Software Lab
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To expound a bit upon Chris's solution (and to offer one that *is*
fully within the bounds of what is supported in the toolkit)...

The best way to take an arbitrary window and "widgetize" it is to write
a new widget class.  This class can be quite simple; the important
thing in it is its realize procedure.  Rather than creating a window,
the realize procedure assigns an existing window to the widget's window
field.

When this widget gets realized, its window gets entered into the
window-to-widget table directly.  This widget should never be managed,
but it must be realized.

Disclaimer:  I haven't tried this with the root window, but it should work.
The context I used it in was in a widget for a reparenting window manager;
it takes the client window and reparents it to the window of an existing
widget.

	-paul asente
	    asente@decwrl.dec.com	...!decwrl!asente