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From: carroll@m.cs.uiuc.edu
Newsgroups: comp.windows.x
Subject: EventMask for XSendEvent
Message-ID: <26900116@m.cs.uiuc.edu>
Date: 8 May 90 23:47:00 GMT
Lines: 23
Nf-ID: #N:m.cs.uiuc.edu:26900116:000:1192
Nf-From: m.cs.uiuc.edu!carroll    May  8 18:47:00 1990


I'm having problems with Client Messages and XSendEvent. The code works on a
SysV 11R3 system, but not on Sun-3's or Sparcs with SunOS4.0.3 & 11R4.

In R3, the following sends off the Client Message:
	XSendEvent(xr->dpy,xr->id,False,(unsigned long)~0L,&ev); 
Under R4, neither that nor
	XSendEvent(xr->dpy,xr->id,False,(unsigned long)-1L,&ev); 
send the message out. XSendEvent reports True as a result, but the clients
on the other end never receive the events, even though I've verified that
they receive other clients events. In desperation, I tried the following:
	XSendEvent(xr->dpy,xr->id,False,
		SubstructureNotifyMask | SubstructureRedirectMask,
		,&ev); 
That works, but only for messages to the window manager, not for a
general Client Message receiver (which does not have either of those events
selected). What I want to know is why I can't send it with _all_ the event
mask bits set? Was something changed here from R3 to R4? Thanks!

Alan M. Carroll                Barbara/Marilyn in '92 :
carroll@cs.uiuc.edu            + This time, why not choose the better halves?
Epoch Development Team         
CS Grad / U of Ill @ Urbana    ...{ucbvax,pur-ee,convex}!cs.uiuc.edu!carroll