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Re: Is that window open?? [message #8571 is a reply to message #8570]

Wed, 02 April 1997 00:00

David Foster
Messages: 341
Registered: January 1996

Senior Member

Phil Williams wrote:
>
> How would I check to see if a window ID is still open in a widget
> program?
>
> Here's what I did
> oldwin = !d.window
> wset, info.wid
>
> ; some code here
>
> ;--- restore the oldwin
> wset, oldwin
>
> and it crashes with
> % WSET: Window is closed and unavailable.

I think the most straightforward thing to do would be:

oldwin = !d.window
device, window_state=windows
case ( windows(info.wid) ) of
0: <window is closed...recreate or whatever>
1: wset, info.wid
endcase

Dave
--

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~
David S. Foster Univ. of California, San Diego
Programmer/Analyst Brain Image Analysis Laboratory
foster@bial1.ucsd.edu Department of Psychiatry
(619) 622-5892 8950 Via La Jolla Drive, Suite 2200
La Jolla, CA 92037
[ UCSD Mail Code 0949 ]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~

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[Message index]

		Re: Is that window open?? By: David Foster on Thu, 03 April 1997 00:00
		Re: Is that window open?? By: steinhh on Thu, 03 April 1997 00:00
		Re: Is that window open?? By: hegde on Wed, 02 April 1997 00:00
		Re: Is that window open?? By: David Foster on Wed, 02 April 1997 00:00
		Re: Is that window open?? By: Tim Patterson on Wed, 02 April 1997 00:00
		Re: Is that window open?? By: brian.jackel on Wed, 02 April 1997 00:00

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