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From: bskendig@phoenix.Princeton.EDU (Brian Kendig)
Newsgroups: comp.sys.mac.hypercard
Subject: Re: Preventing menubar and message box hiding
Message-ID: <13059@phoenix.Princeton.EDU>
Date: 18 Jan 90 18:30:39 GMT
References: <1990Jan4.200726.6221@smsc.sony.com> <1472@cantuar.UUCP>
Reply-To: bskendig@phoenix.Princeton.EDU (Brian Kendig)
Organization: Systems Engineering, NASA Space Station Freedom Project
Lines: 44

In article <1472@cantuar.UUCP> sinton@cantuar.UUCP (Robert J.P. Sinton) writes:
>   A while back I tried (just for fun) this card script:
>on add arg1,arg2,arg3
>  answer arg1 && "/" && arg2 && "/" && arg3
>end add
>   In the message box I typed:
>put 1 into temp
>   and then:
>add 1 to temp
>   Imagine my surprise when it worked! the answer dialog gave:
>1 / to / <container>
>
>   I tried for ages to do something like adding 1 to arg1 so that
>"add 1 to temp" when temp was 1 would result in temp having the value 3.
>Unfortunately, the third argument is trapped as the string "<container>",
>rather than a useable reference to the actual container, so the message
>lost its meaning through being intercepted. Very frustrating, it made me
>feel that the ability to alter mathematical logic was just beyond my reach :-)

First of all, having the command `add 1 to arg1' in your `on add'
handler would result in an infinite recursion...  ;)

I've come across that <container> problem before.  Seems to me that I
once tried to trap the `go' command and take special action for
specific destinations, but no matter what I typed after `go', my handler
would always receive the message

	go to <card>

which doesn't help much at all unless I really did type `go to <card>'
(which I didn't).

What's the deal here?  Why isn't my card receiveing the same thing
that the system must be (or else I couldn't `go' anywhere!)?

I can't seem to replicate the problem right now, but I remember
working around it clumsily way back when.

     << Brian >>
-- 
| Brian S. Kendig      \ Macintosh |   Engineering,   | bskendig             |
| Computer Engineering |\ Thought  |  USS Enterprise  | @phoenix.Princeton.EDU
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|   Systems Engineering, NASA Space Station Freedom / General Electric WP3   |