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How to see if variable is defined? [message #3359]

Fri, 20 January 1995 09:43

rfinch
Messages: 51
Registered: March 1991

Member

Is there a nice way of checking if a variable is defined?

I have a widget_control command which removes a menu, and I need to
see if the menu is defined before destroying it.
--
Ralph Finch 916-653-8268:voice 916-653-6077:fax
rfinch@dop.water.ca.gov / finger for PGP public key
"Nada burra la chamaca." A.G.
Any opinions expressed are my own; they do not represent my employer

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[Message index]

		How to see if variable is defined? By: rfinch on Fri, 20 January 1995 09:43
		Re: How to see if variable is defined? By: zawodny on Thu, 26 January 1995 12:28
		Re: How to see if variable is defined? By: nmw on Thu, 26 January 1995 03:18
		Re: How to see if variable is defined? By: thompson on Fri, 27 January 1995 06:49
		Re: How to see if variable is defined? By: rep2857 on Tue, 24 January 1995 08:22
		Re: How to see if variable is defined? By: ps on Thu, 26 January 1995 09:47
		Re: How to see if variable is defined? By: thompson on Mon, 23 January 1995 07:47

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