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From: dlw@Atherton.COM (David Williams)
Newsgroups: comp.sys.mac.hypercard
Subject: HyperClass...what ever happend to it?
Keywords: HyperClass OOPS protodemo
Message-ID: <33746@athertn.Atherton.COM>
Date: 26 Nov 90 22:56:48 GMT
Sender: news@athertn.Atherton.COM
Reply-To: dlw@Atherton.COM (David Williams)
Organization: Atherton Technology -- Sunnyvale, CA
Lines: 24

Steven Litvintchouk @ MITRE posted this in alt.hypertext and I thought
it belonged here where perhaps one of the mavens in Apple...say ATG perhaps,
or perchance one of the HyperCommando's might comment on this.

David
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At an OOPSLA a couple of years ago, Apple Computer demoed a prototype
called "HyperClass".  HyperClass was an extension of HyperCard, in
that it replaced the "background card" concept with "card classes" and
inheritance.  That is, if you defined a "card class" to have certain
fields and buttons on it, you could then define a "card subclass"
which inherited those fields and buttons (and could have new ones
of its own defined as well).  There was even a browser for card
classes.  This was written almost entirely in HyperTalk, as I recall.

However, I never heard anything more about HyperClass since then.
Does anyone know what happened to it?  Is Apple still sitting on it,
or releasing it as a product, or as PD, or what?  Also, has anyone
else ever implemented anything comparable in HyperCard, SuperCard, or
whatever?

Steven Litvintchouk
MITRE Corporation
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