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From: courtney@arirang.cps.msu.edu (Jonathan Courtney)
Newsgroups: comp.windows.open-look
Subject: Re: that !!@#$#@ color problem
Keywords: solution
Message-ID: <1991Apr8.193159.11640@msuinfo.cl.msu.edu>
Date: 8 Apr 91 19:31:59 GMT
References: <1991Apr7.002141.24406@ee.rochester.edu>
Sender: news@msuinfo.cl.msu.edu
Reply-To: courtney@arirang.cps.msu.edu (Jonathan Courtney)
Distribution: usa
Organization: PRIP Lab, Comp. Sci. Dept., MSU
Lines: 25


  I think I might have found a fix for our server image problem.  Apparently,
xv_create calls to make server images objects zero out the input data before
it stores it in its internal pixmap.  So the solution is to bypass the data
processing phase, right?

  The Solution:  Create an XImage of the data you wish to display.  Write
this image with XPutImage to a pixmap that you create of the same size.
Then use this pixmap as the input to the server image create call, as
such:

  image = xv_create(NULL, SERVER_IMAGE,
			SERVER_IMAGE_PIXMAP, pixmap,
			NULL);


  Believe it or not, this works.  Unfortunately, it is only useful if you
are restricted to use only server image types instead of an XImage.  In my
case, I can't use an XImage because I am trying to use the data as part of
an XView list object.

						Jon Courtney