Article View: comp.sys.mac
Article #20724Re: Getting a vRefNum from a DirID
From: Stew Rubenstein
Date: Sun, 25 Oct 1987 04:50
Date: Sun, 25 Oct 1987 04:50
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In article <1006@mntgfx.MENTOR.COM> tomc@mntgfx.MENTOR.COM (Tom Carstensen) writes: >Put simply, how do you get a volume reference number >(like that return from a SFGetFile), from a directory >ID? SFGetFile usually returns a working directory reference number, not a volume reference number. If you have a real volume reference number and a DirID, and you need a working directory reference number, use OpenWD. If you have only a DirID, and don't know which physical disk it is on, you don't have enough information. You could try walking the volume list with an indexed PBGetVInfo or somesuch, and try opening a Working Directory on each volume until you get one that succeeds... (Did I really suggest that? Must be late.) I suggest you study IM 4, p. 98 and TechNote 77. Stew Rubenstein Cambridge Scientific Computing, Inc. UUCPnet: seismo!harvard!rubenstein CompuServe: 76525,421 Internet: rubenstein@harvard.harvard.edu MCIMail: CSC
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!endor!stew From: stew@endor.harvard.edu (Stew Rubenstein) Newsgroups: comp.sys.mac Subject: Re: Getting a vRefNum from a DirID Message-ID: <3047@husc6.UUCP> Date: Sat, 24-Oct-87 23:50:46 EST Article-I.D.: husc6.3047 Posted: Sat Oct 24 23:50:46 1987 Date-Received: Mon, 26-Oct-87 05:52:30 EST References: <1006@mntgfx.MENTOR.COM> Sender: news@husc6.UUCP Reply-To: stew@endor.UUCP (Stew Rubenstein) Organization: Aiken Computation Lab Harvard, Cambridge, MA Lines: 23