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From: philipc@runx.oz.au (Philip Craig)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Testing for System 7
Message-ID: <1991Jun28.105622.26660@runx.oz.au>
Date: 28 Jun 91 10:56:22 GMT
References: <1991Jun27.125511.19565@runx.oz.au>
Reply-To: philipc@runxtsa.runx.oz.au (Philip Craig)
Organization: PacPics
Lines: 17

In article <1991Jun27.125511.19565@runx.oz.au> mrd@runx.oz.au (Malcolm Davidson) writes:
>How do I test for the presence of system 7? I dont have access to
>IM VI as yet.
Xref: munnari.OZ.AU comp.sys.mac.programmer:25763

Try the Gestalt call, which is of course documented in Inside Mac VI. Note that
Apple recommends using the Gestalt call to check for particular features, 
e.g. The Help Manager, rather than system versions.

If you can't get access to Inside Mac VI, SysEnvirons will tell you the
system version. This is documented in Spinside Macintosh Chapter 2, or
Inside Macintosh Volume V.
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