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Re: widget cleanup problem [message #51713 is a reply to message #51686]

Tue, 05 December 2006 08:10

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Braedley writes:

> My problem comes when I try to destroy the widget. I actually do make
> it into the cleanup routine, but apparently label_base has already been
> destroyed because I get the following error:
> WIDGET_CONTROL: Invalid widget identifier: 0.
> when I try to get the uvalue. I still want the user to be able to set
> a uvalue for this compound widget, so setting the uvalue of base to
> move_info won't work. Any suggestions?

Now you are beginning to see one of the MAJOR reasons
for writing all your compound widgets as objects. :-)

But, here, just assign the CLEANUP (or even *another*
CLEANUP) to the widget that actually has the pointer.
There is no need to assign it to the compound widget
TLB if there is nothing for it to do. :-)

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. ("Perhaps thou speakest truth.")

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[Message index]

		widget cleanup problem By: Paul Van Delst[1] on Tue, 28 November 2006 10:59
		Re: widget cleanup problem By: David Fanning on Tue, 05 December 2006 08:31
		Re: widget cleanup problem By: Braedley on Tue, 05 December 2006 08:23
		Re: widget cleanup problem By: David Fanning on Tue, 05 December 2006 08:10

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