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From: dgold@apple.UUCP
Newsgroups: comp.sys.mac
Subject: Re: Classic Mac operation with programming for SE or Mac ][?
Message-ID: <667@apple.UUCP>
Date: Mon, 27-Apr-87 15:47:49 EDT
Article-I.D.: apple.667
Posted: Mon Apr 27 15:47:49 1987
Date-Received: Wed, 29-Apr-87 01:31:45 EDT
References: <9529@decwrl.DEC.COM>
Reply-To: dgold@apple.UUCP (David Goldsmith)
Organization: Apple Computer Inc., Cupertino, USA
Lines: 29

In article <9529@decwrl.DEC.COM> harrow@exodus.dec.com (Jeff Harrow, NCSE LKG1-3/F16  Boxborough  DTN=293-5128) writes:
>My question is this:   If  you program an application to be fully 
>functional on the top of the line machine (Mac ][) which requires 
>that you make use of the NEW  calls  and structures such as COLOR 
>grafports, textedit Style resources, etc, HOW WILL THESE PROGRAMS 
>BEHAVE WHEN RUN ON ONE OF THE "CLASSIC" MACS?
>
>Will  it be necessary to write conditional (yuk!) code  into  the 
>programs so that IF CLASSIC THEN ...  ELSE ...    or has Apple, in 
>their usual tremendously successful efforts at compatibility come 
>up with some method  that  these  NEW  calls will somehow operate 
>in the OLD way when run on a "Classic Mac?"

Some of the new features have been backpatched onto 128K ROM machines.
Basically, most of the new functions (TextEdit, Menu Manager, etc) are
available on anything with 128K or later ROMs running System 4.1 or
later.  This is not true for any of the color functions; these are
available only on the Mac II, so I'm afraid that "yuk!" is the order
of the day.

-- 
David Goldsmith
Apple Computer, Inc.
MacApp Group

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