Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!snorkelwacker!bloom-beacon!EXPO.LCS.MIT.EDU!jim
From: jim@EXPO.LCS.MIT.EDU (Jim Fulton)
Newsgroups: comp.windows.x
Subject: Re: twm: resize: ConfigureNotify Event 'x' value always 0
Message-ID: <9003221956.AA13108@kanga.lcs.mit.edu>
Date: 22 Mar 90 19:56:59 GMT
References: <9003221933.AA09977@expo.lcs.mit.edu>
Sender: daemon@athena.mit.edu (Mr Background)
Organization: X Consortium, MIT Laboratory for Computer Science
Lines: 20


    SYNOPSIS:
	The twm window manager places an incorrect value in the
	'x' (window origin x) field of the XConfigure event structure
	sent in response to a window manager resize.


After pawing through section 4.1.5 of the ICCCM again, I believe that you're
seeing the correct behavior:

     o	Resizing the window (whether or not it is moved), a client which has
	selected for StructureNotify will receive a ConfigureNotify event. 
	Note that the coordinates in this event are relative to the parent,
	which may not be the root if the window has been reparented, and will
	reflect the actual border width of the window, which the window 
	manager may have changed.  The TranslateCoordinates request can be
	used to convert the coordinates if required.


Since twm reparent the window to (0,title_height), that's what you're seeing.