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Re: Killing Widget Objects [message #88124 is a reply to message #88121]

Fri, 21 March 2014 11:06

Matthew Argall
Messages: 286
Registered: October 2011

Senior Member

I did the exact same thing a few weeks ago. I got around it by only destroying the top level base object or widget.

In the draw widget object, the only cleanup I have is
if obj_valid(self._oTLB) then self._oTLB -> Destroy

In the cleanup method for the top level base object I have
if widget_info(self._ID, /VALID_ID) then widget_control, self._id, /DESTROY

So, now the top level base object and its widget are destroyed. When the widget is destroyed, XManager kills all of its children. All of the children have a Kill_Notify procedure/method that destroy their associated object.

For a while, I tried to kill the draw widget inside the draw object's cleanup method as well. This caused XManager to try to kill the draw widget twice and gave me the same error you are getting.

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[Message index]

		Killing Widget Objects By: David Fanning on Fri, 21 March 2014 10:48
		Re: Killing Widget Objects By: Matthew Argall on Fri, 21 March 2014 11:06
		Re: Killing Widget Objects By: David Fanning on Fri, 21 March 2014 11:15
		Re: Killing Widget Objects By: David Fanning on Fri, 21 March 2014 12:11

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