Path: utzoo!yunexus!geac!syntron!jtsv16!uunet!ncrlnk!ncrcae!ece-csc!mcnc!uvaarpa!haven!rutgers!apple!bloom-beacon!ZERMATT.LCS.MIT.EDU!RWS
From: RWS@ZERMATT.LCS.MIT.EDU (Robert Scheifler)
Newsgroups: comp.windows.x
Subject: PointerMotionHintMask doesn't seem to work
Message-ID: <19881028141313.7.RWS@KILLINGTON.LCS.MIT.EDU>
Date: 28 Oct 88 14:13:00 GMT
Article-I.D.: KILLINGT.19881028141313.7.RWS
References: <6859@pasteur.Berkeley.EDU>
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
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    Date: 28 Oct 88 01:03:43 GMT
    From: apple!bionet!agate!helios.ee.lbl.gov!pasteur!dent.Berkeley.EDU!davidh@bloom-beacon.mit.edu  (David S. Harrison)

    PS:  If I add PointerMotionMask to the event mask,  it works fine.

Right.  PointerMotionHintMask does not stand by itself, it is a
*modifier* for the other motion mask bits.  You are *supposed* to also
select for PointerMotionMask or some other Motion mask.  (Others have
been confused by this as well, I guess the doc is less than clear.)