| Re: Large widget identifiers [message #33243 is a reply to message #33184] |
Sun, 15 December 2002 13:55   |
Andrew Cool
Messages: 219
Registered: January 1996
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Senior Member |
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Ian Dean wrote:
>
> Hi,
> Has anyone come across widget IDs "wrapping" when they reach a short int
> limit (65535)?
>
> We have a run-time IDL program that is running continuously for days/weeks.
> During this time several runs of data are processed. Each run requires
> approximately 400 widgets. However, without wishing to exit the software,
> the runs are performed within one program.
>
> The problem occurrs when the widget ID reaches 65535, the next widget to be
> created is 0, not 65536. This looks like a short int problem, but IDs are
> supposed to be long int.
>
> Is there a way under program control to reset the widget ID back to 1 at the
> beginning of a run?
> I realise using the development environment .reset achieves this, but that
> cannot be used in a running program.
>
> This occurrs on IDL PC versions 5.2-5.5. However, it does not happen on
> OpenVMS versions.
>
> The following lines will cause the error to occur:-
>
> FOR J=0L, 50000L DO BEGIN
> Base=WIDGET_BASE()
> WIDGET_CONTROL, Base, /DESTROY
> ENDFOR
>
> Any suggestions would be welcome
> Regards,
> Ian
Hi Ian,
What about trying Widget_control,/RESET? Carefully, of course...
Andrew
------------------------------------------------------------ -----------------
Andrew D. Cool
Electromagnetics & Propagation Group
Intelligence, Surveillance & Reconnaissance Division
Defence Science & Technology Organisation
PO Box 1500, Edinburgh
South Australia 5111
Phone : 061 8 8259 5740 Fax : 061 8 8259 6673
Email : andrew.cool@no-spam.dsto.defence.gov.au
Please remove the no-spam from my email address to reply ;-)
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