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Re: Validate widget id [message #30595 is a reply to message #30521]

Tue, 07 May 2002 06:45

R.Bauer
Messages: 1424
Registered: November 1998

Senior Member

Guido Vent wrote:
>
> Hello,
>
> I want to check, if a certain widget is destroyed. But if I use
> wtget(...,/destroyed) an error is raised when the widget is already
> destroyed.
> I use PV-Wave 7.5 on Windows NT.
>
> Any suggestion?
>
> Regards,
>
> Guido

Dear Guido

next trial,

I don't know much about PV-WAVE but I hope you have something like
CATCH or ON_ERROR

May be something like this will do the job

FUNCTION is_valid,id

errvar=0
CATCH,errvar
IF errvar NE 0 THEN RETURN,0
WIDGET_CONTROL,id,get_value=v

RETURN,1
END

--
Reimar Bauer

Institut fuer Stratosphaerische Chemie (ICG-I)
Forschungszentrum Juelich
email: R.Bauer@fz-juelich.de
------------------------------------------------------------ -------
a IDL library at ForschungsZentrum Juelich
http://www.fz-juelich.de/icg/icg1/idl_icglib/idl_lib_intro.h tml
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[Message index]

		Validate widget id By: GuidoVent on Mon, 06 May 2002 03:08
		Re: Validate widget id By: R.Bauer on Tue, 07 May 2002 06:45
		Re: Validate widget id By: GuidoVent on Tue, 07 May 2002 23:22
		Re: Validate widget id By: GuidoVent on Tue, 07 May 2002 06:25
		Re: Validate widget id By: R.Bauer on Mon, 06 May 2002 06:44

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