| Re: Beginner Question: Disappearing Info Structure/Motion Events [message #27527] |
Sun, 28 October 2001 15:54  |
Ted Cary
Messages: 53
Registered: October 2001
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Member |
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Thanks for the help,
(The original message back there is from me, writing as Sandy from
work--it's the default in the computer I have there).
I thought I checked all my event handlers before I posted the message. I
got tired of looking and just continued the program without No_Copy set, and
then went back and turned it on in all the event handlers after everything
else was working. It works fine, but I still don't know what I was missing
earlier, or what I changed in the meantime to make it work now. Next time I
will send you the program.
">
> No, I can assure you IDL is fast enough. :-)
>
> I'm guessing that one or more of your event handlers
> is not "checking in" the info structure before it
> exits. This is the classic symptom of that error.
>
> Make sure that everywhere you check the info structure
> out you also check it in before you leave that event
> handler. (A RETURN somewhere other than at the end
> of the procedure is a great place to look.)
>
> If worst comes to worst, send me your program.
> If I can't spot this error with 30 seconds I
> buy you a beer. :-)
>
> Cheers,
>
> David
> --
> David W. Fanning, Ph.D.
> Fanning Software Consulting
> Phone: 970-221-0438, E-mail: david@dfanning.com
> Coyote's Guide to IDL Programming: http://www.dfanning.com/
> Toll-Free IDL Book Orders: 1-888-461-0155
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