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List:       freedesktop-xorg
Subject:    =?windows-1252?Q?newbie_=93resource_temporarily_unavailable=94_questi?= =?windows-1252?Q?on?=
From:       Alan Corey <alan01346 () gmail ! com>
Date:       2012-06-29 3:45:40
Message-ID: CAOh3dDY+4C1G7R+w0rchLqZhW-LGLmjaga3V+ZQGfpt399RNiQ () mail ! gmail ! com
[Download RAW message or body]

I=92m just plinking around after having read the early chapters of the
O=92Reilly volumes 4a and 6a plus some Athena and Xlib stuff. I was
itching to try some things.  For my background see
http://ab1jx.webs.com  For graphics programming I=92ve mostly worked in
Turbo Pascal and Delphi.

So I get this error message in my second Intrinsics/Athena program and
I=92d like to know the possible causes of it.  If I Google for it all I
find are mentions of it cropping up in specific applications.  There=92s
nothing mission-critical here, it=92s just practice.  Knowing where to
find longer versions of error messages in general would be a good
thing.

I=92m trying to make a simple oscilloscope type program.  I=92m using a
Panner for an output screen.  I can make a Pixmap and draw a grid onto
it with XDrawSegments, test it with XWriteBitmapFile, but when I try
to use XCopyPlane to copy to the Panner I get the unavailable message.
 I can use XDrawSegments directly on the Panner (well, once anyway),
copy the grid into another Pixmap with XCopyPlane, most other things
seem to work.    Aside from the unavailable message I get a black
rectangle where the Pixmap should be.  Nothing shows up in
/var/log/Xorg.0.log about it, and it=92s not fatal: I can keep running
the program.  I wouldn=92t have known it was there except I put a perror
after the XCopyPlane to investigate the black Pixmap.

Source code and screenshot at http://ab1jx.webs.com/toys/sscope/index.html

  Alan

-- =

Credit is the root of all evil.  - AB1JX
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