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From: 252u3129@fergvax.unl.edu (Mike Gleason)
Newsgroups: comp.sys.mac.programmer
Subject: File Manager Problem
Message-ID: <1990Nov26.073834.9278@hoss.unl.edu>
Date: 26 Nov 90 07:38:34 GMT
Sender: news@hoss.unl.edu (Network News Administer)
Organization: University of Nebraska - Lincoln
Lines: 22

Would some kind soul please tell me the correct way to open a file using the
hierarchial file system routines.  Situation:  I can use code from Sample
Code Notes telling me how to cycle through directories using CInfoPBRecs and
PBHGetCatInfo, so I have a list with filenames, dirIDs, and vRefNums.  HOW
do you use HOpen to open a file knowing such information.  Intuition tells me
to try:

err = HOpen(vrefnum, dirid, filename, fsRdPerm, &refnum);

But it refuses to work.  I have a feeling that I'm not using the correct
info from the CinfoPBRec as I get each file's information.  Right now, I
store the contents of myCPB.ioNamePtr in the filename, myCPB.ioVRefNum in the
vrefnum, and myCPB.ioDirID in dirid.  I have also tried substituting 
myCPB.ioFlParID as the dirid, but nothing works!  Why???  What do I need from
the CInfoPBRec to open a file?  Am I going to have to HSetVol and then use
regular FSOpen()?


 mike gleason                                "How I've waited for you to come
 252u3129@fergvax.unl.edu                            I've been here all alone
                                  Now that you've arrived, please stay awhile
       And I promise not to keep you long... I'll keep you forever" -- Slayer