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Re: widget cleanup problem [message #51711 is a reply to message #51686]

Tue, 05 December 2006 08:23

Braedley
Messages: 57
Registered: September 2006

Member

David Fanning wrote:
> 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.")

Why don't I ever see these simple solutions? And I may eventually
convert this to an object, but I think creating my first compound
widget is good enough for now.

Thanks
Braedley

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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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