Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ukma!uflorida!haven!aplcen!aplcomm!aplvax.jhuapl.edu!gersh
From: gersh@aplvax.jhuapl.edu (John R. Gersh)
Newsgroups: comp.sys.mac
Subject: Re: MacWrite II contains a hypercard engine!
Summary: Claris goes to HyperCard Help
Keywords: MacWrite, MacDraw, HyperCard
Message-ID: <3602@aplcomm.jhuapl.edu>
Date: 10 Apr 89 12:34:24 GMT
References: <667@cf-cm.UUCP>
Sender: news@aplcomm.jhuapl.edu
Reply-To: gersh@aplvax.jhuapl.edu.UUCP (John R. Gersh)
Organization: The Johns Hopkins University Applied Physics Laboratory
Lines: 28

In article <667@cf-cm.UUCP> ralph@computing-maths.cardiff.ac.uk (Ralph Martin) writes:
>While fiddling around with MacWrite II last night, I was amazed to see that
>its help filw is of type STAK, despite the fact that MWII can use it
>directly (you can also open it with hypercard). On poking further, I discovered
>that MWII resources contain lots of references to HENG, which I presume is
>Hypercard ENGine. MacWrite II contains a fair subset (playback only) of 
>hypercard.
>

MacDraw II v1.1 has the same feature; help is implemented through an
internal Hypercard engine. Some interesting aspects of this
implementation:

- HyperTalk resides in a set of STR# resources containing the
necessary commands, etc.

- If you open the Claris help files in HyperCard, you notice that the
internal engine clips the area of the cards a bit; the portion not
shown contains a card number in the stack.


						- John Gersh


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