Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!ucdavis!iris!lim
From: lim@iris.ucdavis.edu (Lloyd Lim)
Newsgroups: comp.sys.mac.programmer
Subject: file info from rsrc handle?
Message-ID: <3687@ucdavis.ucdavis.edu>
Date: 17 Feb 89 08:24:03 GMT
Sender: uucp@ucdavis.ucdavis.edu
Reply-To: lim@iris.ucdavis.edu (Lloyd Lim)
Distribution: usa
Organization: U.C. Davis - Department of Electrical Engineering and Computer Science
Lines: 28

I realize this a rather basic question, but I never ventured into this area
before. Please bear with me.

I need to get information about a file (using PBGetFInfo) given a handle to
a resource in that file. OK, so I do a HomeResFile which gives me the path
reference number, then a GetVRefNum which gives me the volume reference
number.

Then I get stuck. PBGetFInfo likes file names or directory indexes. So I
suppose I have to go through the indexes until I hit the correct file. But
how do I know when it hits the correct file? The only thing I have is the
path reference number to compare against the one that's returned. But the call
only returns the first path it finds. So I guess I have to go through the
FCB chain to find the file number to compare against the file number returned
by PBGetFInfo. Do I really have to do all this or am I missing something?

I realize that with HFS I could do a PBGetFCBInfo to get the file name and
simply do a PBGetFInfo. However, I would also like this to work on 64K ROMS.
If I really have to do what I outlined above then I might just forget about
the old ROMS. My God! What did I just say! I started with an original 128K
upgraded to 512K upgraded to 512KE upgraded to Plus. Someone, say it ain't so
hard!

+++

Lloyd Lim     Internet: lim@iris.ucdavis.edu
              Compuserve: 72647,660
              US Mail: 146 Lysle Leach Hall, U.C. Davis, Davis, CA 95616