Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!lsr
From: lsr@Apple.COM (Larry Rosenstein)
Newsgroups: comp.sys.mac.programmer
Subject: Re: I want to write Add1ResMenu()
Message-ID: <51684@apple.Apple.COM>
Date: 18 Apr 91 20:31:12 GMT
References: <1387@anaxagoras.ils.nwu.edu> <1991Apr16.180052.12246@cbnewsk.att.com> <1991Apr18.002228.25647@umbc3.umbc.edu>
Organization: Future Stuff, Apple Computer, Inc.
Lines: 15

In article <1991Apr18.002228.25647@umbc3.umbc.edu> cs483106@umbc5.umbc.edu (cs483106) writes:
>
>finding out if a resource file is open or not. Simply do an OpenRF on the file
>in question. If the resource file is open, then the Resource manager will have
>write access to the file, and you will not be able to open it(you will get

It is possible to open a resource file read-only, with OpenRFPerm, so this
technique won't work.  Ithink it is easier to just call PBGetFInfo and check
the file attributes (Inside Mac 4 p. 122).

-- 
Larry Rosenstein, Apple Computer, Inc.

lsr@apple.com
(or AppleLink: Rosenstein1)