Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!unisoft!cander
From: cander@unisoft.UUCP (Charles Anderson)
Newsgroups: comp.sys.mac.hypercard
Subject: Using a card name/id in a variable
Keywords: field,variable,backround
Message-ID: <3015@unisoft.UUCP>
Date: 29 May 90 20:46:51 GMT
Lines: 36

I'm working on a heterogeneous stack with about half a dozen different
backrounds. I have a couple of handlers and functions that store card
names/ids in local variables and then extract fields from the specified
card.  This seems to work so long as the current card is of the same
backround type as the card in the local variable.  When the backround
type is different, I get error messages about unknown field in
backround type <current card's backround>.

I played around with stuff in the message box and found that the
problem has something to do with having the card id in a variable.  The
following is a example of the problem:

    put field "foo" of card id 1234    -- works

    put "card id 1234" into bar
    put field "foo" of bar   -- fails

If I go to the card everything works fine, so I have written a function
that looks something like:

function getField fldName cardName
    push card
    go to cardName
    get field fldName
    pop card
    return it
end getField


So my question is, is there some simple, faster way to make this work without
using my silly function?

-- 

Charles.
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