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XtAppPending still hangs
From: |
nathan_salwen |
Subject: |
XtAppPending still hangs |
Date: |
Sat, 13 Mar 2004 23:11:33 -0500 |
User-agent: |
SEMI/1.14.5 (Awara-Onsen) FLIM/1.14.5 (Demachiyanagi) APEL/10.6 Emacs/21.3 (i386-redhat-linux-gnu) MULE/5.0 (SAKAKI) |
Dear Robert,
You may remember me. Several years ago I ran into a problem where
XtAppPending would hang until I clicked in the X plotting window. Now
I am running in a slightly different mode and am seeing essentially
the same problem. Interestingly, I found my name in the comments
describing the first fix but it now reoccurs if I set
"USE_DOUBLE_BUFFERING" in an "X" plotter.
In _y_maybe_handle_x_events (y_openpl.c), I find that when
(select_return>0), which usually occurs when I move the mouse through
the plotting window, I call XtAppPending which hangs. It doesn't seem
that clicking in the window or anything else that I can think of can
unstick it. I fixed the problem for my purposes by just putting a
"break;" before the call to XtAppPending so it is never called. Since
I am running an X rather than an X-drawable plotter, it is my
understanding that we don't really do anything with the events
anyways.
Once again, thanks for an excellent piece of code that I have used for
years.
I am using plotutils-2.4.1 packaged by Debian (2.4.1-10) and Xfree86
3.3.6 (Debian xserver-common-v3-3.3.6-44
Sincerely,
Nathan Salwen
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