Path: utzoo!attcan!uunet!husc6!bloom-beacon!ATHENA.MIT.EDU!swick
From: swick@ATHENA.MIT.EDU (Ralph R. Swick)
Newsgroups: comp.windows.x
Subject: Re: help finding smallest enclosing pointer window
Message-ID: <8808101316.AA00420@LYRE.MIT.EDU>
Date: 10 Aug 88 13:16:16 GMT
References: <9740046@hpfclp.SDE.HP.COM>
Sender: daemon@bloom-beacon.MIT.EDU
Organization: DEC/MIT Project Athena
Lines: 3

XTranslateCoordinates will give you the next lower level of the
tree without having to assume the pointer is stationary.  You
still have to walk the tree yourself.