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From: aperez@caribe.uucp (Arturo Perez x6739)
Newsgroups: comp.windows.x
Subject: Re: event mask to XGrabPointer et al.
Message-ID: <292@cvbnet.Prime.COM>
Date: 21 Dec 89 20:09:12 GMT
References: <8912182057.AA05745@expire.lcs.mit.edu>
Sender: postnews@cvbnet.Prime.COM
Lines: 44

From article <8912182057.AA05745@expire.lcs.mit.edu>, by rws@EXPO.LCS.MIT.EDU (Bob Scheifler):
> 
>     calls to XGrabPointer() with an event mask of -1, which caused a
>     problem with the Sony R3 server (invalid argument).
> 
> That actually makes it a post-R3 server, then. :-)  This is a typical
> bug in R3 clients that will cause them to lose against strict R4 servers.
> 
>     Is -1 a special value meaning "all events that apply",
> 
> -1 is not treated special by the server.  The set of legal bits for the
> event mask in an XGrabPointer is defined in the protocol specification
> for GrabPointer (page 379 in the DP book) as SETofPOINTEREVENT.  This
> set is given on page 349.  Bit encodings are shown on page 545.

There, unfortunately, doesn't seem to be any include files that have
this entity (i.e. SETofPOINTEREVENT) defined.

Actually, I had found this bug in xlock (it happens to be one of the
most popular programs around here) and substituted 

#define ALL_POINTER_EVENTS (ButtonPressMask|ButtonReleaseMask|PointerMotionMask|
PointerMotionHintMask|Button1MotionMask|Button2MotionMask|Button3MotionMask|Butt
on4MotionMask|Button5MotionMask|ButtonMotionMask)

I presume that this is the complete set?

Oh, BTW, there seem to be a lot of programs suffering from
X Error:  BadCursor
  Request Major code 1 ()
  Request Minor code 0
  ResourceID 0xfd880ee0
  Error Serial #3
  Current Serial #14

And why do I get a protocol error when specifying a font directory without
a fonts.dir file?



Arturo Perez
ComputerVision, a division of Prime
aperez@cvbnet.prime.com
Too much information, like a bullet through my brain -- The Police