Path: utzoo!attcan!uunet!seismo!sundc!pitstop!sun!decwrl!purdue!bu-cs!bloom-beacon!WAYBACK.UNM.EDU!ron
From: ron@WAYBACK.UNM.EDU
Newsgroups: comp.windows.x
Subject: Portable server release clients (How is it done?)
Message-ID: <8811170001.AA21807@wayback.unm.edu>
Date: 17 Nov 88 00:01:28 GMT
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
Lines: 57


How does one go about writing an X11 client independent of the
server release?


Here is an example:

say you have a client and you want it to work on R2 and R3, but it
uses Fonts.

Problem:

R2 Fonts use the file name convention and R3 Fonts use the ISO
Latin-1 naming convention.

Soln:

Maybe one of the display macros will tell me the release number?

XVendorRelease will return a number related to a vendor's release of
the X server.


Our MIT servers return 2 for R2 and 3 for R3, but one of our DEC
machines is running DECWINDOWS
(vendor = "DECWINDOWS DigitalEquipmentCorp.")

and returns (release = 11)

I guess this is okay, since this is the vendor release of the server.


Problem:


Why doesn't the display structure have an entry for the 
MIT X Consortium based revision number?

*OR* some other method for telling clients what the server expects,
be it fonts names or what ever else will change in coming releases.

I hope that I'm missing something!

But if I'm not, how are we going to ever write independent
server release clients?




VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
Ron E. Neher
University of New Mexico
Dept. of Electrical & Computer Engineering
Albuquerque, NM 87131
(505) 277-0809(office)/0801(lab)
NET-ADDRESS:   ron@wayback.unm.edu OR ron%wayback@ariel.unm.edu
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