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From: bdugan@teri.bio.uci.edu (Bill Dugan)
Newsgroups: comp.sys.mac.programmer
Subject: Yikes: Using both resource & data forks of a file
Summary: Strange problems!
Message-ID: <280B842C.16551@orion.oac.uci.edu>
Date: 16 Apr 91 23:09:32 GMT
Organization: University of California, Irvine
Lines: 17
Nntp-Posting-Host: teri.bio.uci.edu

I'm creating a document file with "Create", writing data to the file's
data fork, and closing the file.  Everything's great.  But then I 
want to put some resources in the file.  I am trying "OpenRFPerm" with
write permission enabled, and it doesn't work; calling ResError() reveals
an EOF, which leads me to believe there's no resource fork, despite
IM's claim that Create will set up both forks of the file created.

My pathetic theory is that a newly created file, when closed, will not
get set up with a resource fork if no data has been written to that
fork.  But since the resource fork & data fork can (supposedly) be treated
separately, I don't see why I should have to nest my open & close calls
just to make sure it all gets written out correctly, and I haven't tried
this anyway.  Can anyone point me in a general direction?

Thanks in advance....

bill