Path: utzoo!mnetor!uunet!mcvax!uvabick!thomas
From: thomas@uvabick.UUCP (Thomas Fruin)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Finding MouseMoved Events
Message-ID: <249@uvabick.UUCP>
Date: 2 May 88 00:41:39 GMT
References: <8769@eleazar.Dartmouth.EDU> <3068@saturn.ucsc.edu> <23826@ucbvax.BERKELEY.EDU>
Organization: uvabick
Lines: 18
Summary: GetNextEvent is useful too


David Phillip Oster writes:

 > If you are running under multifinder, WaitNextEvent returns mouseMoved as
 > a nullEvent with a bit set  (in the message field?, in the modifers
 > field?) if the mouse moved outside the region you hand WaitNextEvent.

If you aren't running under MultiFinder, you can examine the EventRecord for
null events.  Even though no event is being reported, the where field will
still hold the current mouse position.  Compare it to an initial position you
saved previously, and you've got your mouseMoved event.

-- Thomas Fruin

   fruin@hlerul5.BITNET                  University of Leiden
   thomas@uvabick.UUCP                   University of Amsterdam
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