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From: mouse@lightning.mcrcim.mcgill.EDU
Newsgroups: comp.windows.x
Subject: Re: UNIX/X-windows questions
Message-ID: <9102011231.AA00297@lightning.McRCIM.McGill.EDU>
Date: 1 Feb 91 12:31:11 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 17

>> dp = getenv(DISPLAY);
>> display = XOpenDisplay(dp);
> No, use XOpenDisplay(NULL).

Well, XOpenDisplay((char *)NULL), unless you want to ignore sites using
pre-ANSI C compilers, or that don't have prototyped X include files.
(Or, of course, XOpenDisplay((char *)0)....)

> That will do the job of the getenv for you.

It should also do the analogous thing on systems without getenv(),
which keep the default display name somewhere else.

					der Mouse

			old: mcgill-vision!mouse
			new: mouse@larry.mcrcim.mcgill.edu