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From: bowden@csd4.csd.uwm.edu (John William Bowden)
Newsgroups: comp.sys.mac.hypercard
Subject: Checking for a named object sans error if nonexistant
Message-ID: <5611@uwm.edu>
Date: 7 Aug 90 17:06:44 GMT
Sender: news@uwm.edu
Reply-To: bowden@csd4.csd.uwm.edu (John William Bowden)
Distribution: usa
Organization: University of Wisconsin-Milwaukee
Lines: 29

I have a stack that creates other stacks and I need to verify whether
certain stacks were so created. In order to do this I placed a hidden
field in the first card and gave it a unique name, then when I need to
open this stack with the creator stack for editing, it checks whether
the name of card field number x is "unique name". I need to do this
without generating an error if there is no card field number x in the
target stack...Do you know what I mean?

	domenu "Open Stack..."
	put name of cd fld x into theName --where x is an integer
	--I cant have it just say "Never heard of cd fld x"
	--and I must take action on the cd fld's proper/improper naming
	--or cd fld x's nonexistence.
	go to this stack

If anyone has a way to side-step the error message or knows of another
nifty way for checking for a named object's existence in another stack,
I would appreciate hearing from them via e-mail.
			Thanks In Advance,
			John W. Bowden

______________________________________________________________________
* John W. Bowden                     * bowden@csd4.csd.uwm.edu       *
* Computer Specialist                * INTERNET                      *
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