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Re: Graphic Window [message #12008]

Thu, 18 June 1998 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Bernard Puc (puc@gsfc.nasa.gov) writes:

> Is there a way to verify that the graphics window associated with a
> given ID number is still open and valid?

On Windows and UNIX machines you can use the WINDOW_STATE keyword
to the DEVICE command. It will return an array containing one
element for each possible window. Array element j contains a 1
if window j is open, otherwise it contains a 0.

IDL> Device, Window_State=theseWindows
IDL>Print, 'Open Windows: ', Where(theseWindows EQ 1)

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting
E-Mail: davidf@dfanning.com
Phone: 970-221-0438
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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