Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!umich!samsung!usc!ucsd!ucbvax!bloom-beacon!LARRY.MCRCIM.MCGILL.EDU!mouse
From: mouse@LARRY.MCRCIM.MCGILL.EDU
Newsgroups: comp.windows.x
Subject: Re:  set viewport on X
Message-ID: <9008100000.AA18160@Larry.McRCIM.McGill.EDU>
Date: 10 Aug 90 00:00:30 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 21

> I am using X11 and OFS/Motif to write graphics application.  Is there
> any function available to set the viewport of a drawable[?]

"Actually, it's kind of hard to say."  What's a viewport?

If you mean what I suspect you mean (the ability to specify an
arbitrary rectangle in some "virtual" coordinate space, which gets
translated-&-scaled to fit the actual window), no, X does not even have
such a notion.

> If not, can you suggest any good method to implement it.

Well, gee, you could always keep a handful of variables around and do
the scaling yourself.  It's a little tedious - you need to provide a
"virtual" version of each of the X drawing routines you use - but I see
no reason why it wouldn't be perfectly workable.

					der Mouse

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