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From: umcharl3@ccu.umanitoba.ca (Mike Charlton)
Newsgroups: comp.sys.mac.programmer
Subject: Opening files from XCMDs
Message-ID: <1990May31.205608.6768@ccu.umanitoba.ca>
Date: 31 May 90 20:56:08 GMT
Distribution: comp
Organization: University of Manitoba, Winnipeg, Canada
Lines: 18


Hi there.  As a relative newcomer to programming on the Mac (although I
have lots of experience on other machines), I would really appreciate
some help from someone knowledgable in the area of the File Manager.  My
problem is that I am writing an XCMD (in Think C 4.0) that needs to read
in a text file.  Because (as far as I can tell) you can't use virtually
any of the ANSI library routines in a code resource, I am forced to use
the Mac I/O calls with which I am very unfamiliar.  I do an FSOpen() to
open my file, which works perfectly in a standalone application, but it
gives me a file error when I compile it as an XCMD.  Anybody have any idea
what the problem could be? (sorry to be so vague, but I just started reading
the Inside Macintosh books 2 days ago...).
On a similar note, I am a little confused by the way you specify file paths
on the Mac.  As far as I can tell, you have a volume name and a file name,
but you don't have to specify in which directory on the volume the file
is.  Is this a correct assumption?
              thanks for any help,
                     Mike