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Re: IDL Hard Crashing [message #87942 is a reply to message #87941]

Tue, 04 March 2014 17:38

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Matthew Argall writes:

>
> I ran into this problem once before. In my program, all of the widgets had a Kill_Notify event handler destroyed the object it was associated with. In my primary object program, I mistakenly had the cleanup method destroy the objects associated with the widgets from top down.
>
> As a concrete example, say I had a window widget/object and a top level base widget/object. Killing the top level base widget also kills all its child widgets (the window widget). The Kill_Notify event handler then destroys the associated object.
>
> But what I was doing is destroying the window widget/object first, so that when the top level base widget was destroyed, the window no longer existed when the base tried to kill it. That is what generated the error.

This sounds about right. Thanks. I'll look into it.

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

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		IDL Hard Crashing By: David Fanning on Tue, 04 March 2014 15:44
		Re: IDL Hard Crashing By: Matthew Argall on Tue, 04 March 2014 16:08
		Re: IDL Hard Crashing By: David Fanning on Tue, 04 March 2014 17:38

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