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From: klee@wsl.dec.com (Ken Lee)
Newsgroups: comp.windows.x
Subject: Re: Xt Input Callbacks
Message-ID: <1991May8.155639@wsl.dec.com>
Date: 8 May 91 22:56:39 GMT
References: <1991May8.184621.13022@motcad.portal.com>
Sender: news@pa.dec.com (News)
Reply-To: klee@wsl.dec.com
Organization: DEC Western Software Laboratory
Lines: 14

In article <1991May8.184621.13022@motcad.portal.com>, jtc@motcad.portal.com (J.T. Conklin) writes:
|> Why do read callbacks installed with XtAddInput() get called when there is
|> no input pending?  Is there any way to stop this from happening?

The callback is called when the fd is ready for reading, which is a
little different from having input pending.  A common error is trying
to use XtAddInput on regular UNIX files, which are almost always
"ready" for reading, although they may have no new input.

-- 
Ken Lee
DEC Western Software Laboratory, Palo Alto, Calif.
Internet: klee@wsl.dec.com
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