Newsgroups: comp.windows.x
Path: utzoo!utgpu!jarvis.csri.toronto.edu!godzilla.ele.toronto.edu!lansd
From: lansd@godzilla.ele.toronto.edu (Robert Lansdale)
Subject: X11 bug or am I doing something wrong???
Message-ID: <8803040533.AA09458@gamora.ele.toronto.edu>
Organization: EECG, University of Toronto
Distribution: na
Date: Fri, 4 Mar 88 00:33:25 EST

	As an introduction to X11 programming I wrote a front end
driver for my 3d graphics package (under development). It more or
less opens up a window, sets up everything, then starts throwing
XDrawLine requests at the server. The problem I find is that some
(and in other cases all) of my requests don't get drawn! It is
usually the first requests that don't get drawn.

	I tried 'XSync(dpy, 0)' everywhere to make sure the server
had finished with the requests, but the problem prevailed. Then I
placed a 'sleep(1)' after the 'XDrawLine()', and TA DA! it worked,
yet very slowly. I believe our X11 software is up to date, so is
this a bug in Ver 1 of X11?