Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!ucsd!hub!tom
From: tom@capella.ucsb.edu (Tom Weinstein)
Newsgroups: comp.windows.x
Subject: Re: Processing toolkit events
Message-ID: <3953@hub.UUCP>
Date: 15 Feb 90 02:15:38 GMT
References: <3947@hub.UUCP> <2759@bacchus.dec.com>
Sender: news@hub.UUCP
Reply-To: tom@bears.ucsb.edu
Distribution: comp
Organization: Kingdom of Oz, Department of Wizardry
Lines: 38
In-reply-to: asente@decwrl.dec.com's message of 15 Feb 90 00:11:10 GMT

In article <2759@bacchus.dec.com> asente@decwrl.dec.com (Paul Asente) writes:
In article <3947@hub.UUCP> tom@bears.ucsb.edu writes:
>>  XEvent event;
>>
>>  while (XtAppPending(context)) {
>>    XtAppNextEvent(context, &event);
>>    XtDispatchEvent(&event);
>>  }

>>However, this seems to block when there are no events in the queue.  Am
>>I doing something wrong, or is this a bug?

>Are you using timers or alternate input sources?  XtAppPending returns
>non-zero when these exist but XtAppNextEvent still blocks if there are no
>X events.  If this is the case, you might try

>    while (XtAppPending(context) & XtIMXEvent) {
>        ...

I just figured out the right way to do this:

  XEvent event;
  XtInputMask mask;

  XFlush(XtDisplay(xchippe));

  while (mask = XtAppPending(context))
    XtAppProcessEvent(context, mask);

This way it doesn't block, and it processes everything including timers.
Thanks for the help!

>	   -paul asente
>	       asente@decwrl.dec.com	decwrl!asente
--
It does not do to leave a dragon | Tom Weinstein  ...ucbvax!hub!ucsbuxa!6600tom
out of your calculations, if you | 6600tom@ucsbuxa.bitnet  tom@bears.ucsb.edu
live near him.  --J.R.R. Tolkien | 6600tom@ucsbuxa.ucsb.edu tomw@cornu.ucsb.edu