Path: utzoo!attcan!uunet!husc6!uwvax!oddjob!tank!nucsrl!bob
From: bob@eecs.nwu.edu (Bob Hablutzel)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Reading a resource from an already open file
Message-ID: <10050013@eecs.nwu.edu>
Date: 7 Sep 88 13:04:23 GMT
References: <29389@bbn.COM>
Organization: Northwestern U, Evanston IL, USA
Lines: 10


> I would like to read a resource out of the Desktop file.
> Unfortunately, under multifinder it is always open and OpenResFile
> always returns error -49.

Try using _OpenRFPerm instead of _OpenResFile. It will allow you to specify
the read/write access you want for the file, and can return the RefNum of
a file already open. (See IM IV-17 for more information)

Bob Hablutzel		BOB@NUACC.ACNS.NWU.EDU