Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uwm.edu!linac!att!att!cbnewsk!ech
From: ech@cbnewsk.att.com (ned.horvath)
Newsgroups: comp.sys.mac.programmer
Subject: Re: refNum from WD DirID?
Message-ID: <1991May16.140313.23618@cbnewsk.att.com>
Date: 16 May 91 14:03:13 GMT
References: <1991May15.160944.19184@linus.mitre.org>
Organization: AT&T Bell Laboratories
Lines: 20

From article <1991May15.160944.19184@linus.mitre.org>, by laf@mitre.org (Lee Fyock):
> In article <1991May15.125921.15058@linus.mitre.org> laf@mitre.org (Me) writes:
>>Does anyone have an easy way to get a refNum for a directory from
>>its WD Dir ID?  Or even a not-so-easy way?
> 
> Let me explain further:
> 
> I have a working directory dir ID and a refNum for an open file.  I'm
> trying to find out if the given file is in the given directory.  I've tried
> various incantations of PBGetWDInfo, but haven't found anything that will
> give me a way to find the directory of the open file.

AH, now I can help you (I tried already, but my mail bounced).  You want to
pass the file refNum to PBGetFCBInfo (IM IV-179).  It returns the infamous
triple -- vRefNum, dirID, and filename -- that you need to uniquely identify
the file.
-- 

=Ned Horvath=
ehorvath@attmail.com