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From: dce@smsc.sony.com (David Elliott)
Newsgroups: comp.windows.x
Subject: xlock - event mask argument to XGrabPointer
Message-ID: <1989Dec16.002825.10200@smsc.sony.com>
Date: 16 Dec 89 00:28:25 GMT
Reply-To: dce@smsc.Sony.COM (David Elliott)
Organization: Sony Microsystems Corp.
Lines: 20

In the current version I have of xlock (R3 and R4Beta), there are two
calls to XGrabPointer() with an event mask of -1, which caused a
problem with the Sony R3 server (invalid argument).

I changed it to NoEventMask, and xlock worked.  I then tried changing
it to a mask made by OR'ing together all the masks listed in <X11/X.h>,
and that didn't work.  I started looking at the events one at a time,
and found that KeyPressMask and KeyReleaseMask were both invalid, but
ButtonPressMask and ButtonReleaseMask are fine (this makes sense, since
grabbing the pointer has nothing to do with Key events).

Is -1 a special value meaning "all events that apply", so that the
server should accept the value unquestioningly?  Or, should xlock
be more specific with its event mask in this case?

-- 
David Elliott
dce@smsc.sony.com | ...!{uunet,mips}!sonyusa!dce | (408)944-4073
"As I never read this newsgroup or my email, please send replies via
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