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From: merlyn@digibd.com (Merlyn LeRoy)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Serial Driver Routines in Think C
Message-ID: <1991Mar05.185523.758@digibd.com>
Date: 5 Mar 91 18:55:23 GMT
References: <10686@bunny.GTE.COM> <15294@june.cs.washington.edu>
Organization: DigiBoard Incorporated, St. Louis Park, MN
Lines: 12

chou@cs.washington.edu (Pai Chou) writes:
>You should use FSRead(-6, count, &buf) and FSWrite(-7, count, &buf) 
>to read/write the modem port.  FSRead(-8,..) and FSWrite(-9,..) for
>the printer port.

You should NOT use a literal -6, -7, etc.  Use the results of your
OpenDriver() call!  Use the Comm Toolbox to get the port or at
least make the string in OpenDriver() a resource, not a literal string.
That way you'll have a hope of changing the port easily.

---
Merlyn LeRoy