| Re: tvrd and multiple monitors [message #49914 is a reply to message #49907] |
Wed, 30 August 2006 06:34  |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Marshall Perrin writes:
> I frequently work using a second monitor plugged into my Powerbook
> for extra screen space. I just now encountered an odd bug with
> the good Dr. Fanning's TVRD.PRO and the use of that second monitor.
>
> Here's the scenario. I fire up IDL, running it in an xterm on my
> primary monitor, and plot some things to a large display window on
> my second monitor. Then I want to save that plot to disk - but not so fast!
>
> IDL> result = tvread(filename=outfile,/png,/nodialog)
> % TVRD: Unable to create X windows Window completely off screen, nothing read.
>
> Window off screen? What happens if I drag that window back over onto my
> primary monitor?
>
> IDL> result = tvread(filename=outfile,/png,/nodialog)
> IDL>
>
> Voila, things work fine. So there's an easy work-around here - just move the
> window when you want to save the plot - but that's annoying! Is this a
> problem that others also have, or is it perhaps specific to my situation
> (IDL 6.1, Mac OX 10.4, G4 Powerbook)? I'm curious if this behavior
> is the same on a multiheader Linux box...
My understanding of this problem is that it is a windows
problem. At least, when we were investigating it we found
the very same thing happened in a C program we were using
as a test suite. (We were working on Windows, so perhaps
this is different from UNIX.) Maybe Karl has some insight.
In any case, I presume this is something that has been
addressed in the IDL 6.3 release, which added "multiple
monitor support". I haven't tested it, since that was about
the only thing in that release I even remotely cared about,
and I still haven't upgraded
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. (Opata Indian saying, meaning "Perhaps thou
speakest truth.")
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