Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!snorkelwacker!apple!rutgers!uwvax!veronica.cs.wisc.edu!elliott
From: elliott@veronica.cs.wisc.edu (James Elliott)
Newsgroups: comp.sys.mac.programmer
Subject: Okay, so how do I use PBGetCatInfo in Think C?
Keywords: Secret Think C Glue? :^)
Message-ID: <11331@spool.cs.wisc.edu>
Date: 23 Sep 90 06:26:53 GMT
Sender: news@spool.cs.wisc.edu
Organization: U of Wisconsin CS Dept
Lines: 28


Okay. I seem to be missing something. Inside Mac volume IV describes
all these fancy new functions for interacting with the file manager
under HFS. Unfortunately, they all involve these ghastly huge
parameter blocks that I'd rather not have to learn to deal with,
especially when I want to do something relatively simple.

Apparently I'm not the only person who feels that way, since it seems
that Think C has glue to call at least some of these routines in a
more simple way.  For example, the routine PBHGetFInfo seems to be
callable as just HGetFInfo, and instead of passing a HParmBlkPtr and a
Boolean, one passes in a volNum, a dirID and a name, and gets back an
info record.  Very nice. How do I know that this works? I saw them do
it in the Think Class Library code and copied it. It doesn't seem to
be documented anywhere!

Don't I know where to look? Or is there some little manual I'm
missing?

What I presently want to know is whether there is similar glue for
PBGetCatInfo, and what its parameters are. Is there any way to find
out? Is there a general solution to my lack of information about this
set of routines? And is there any way to get a list of the function
prototypes that are defined in Think C? (In increasing order of
generality, and perhaps complexity...)
--
Jim Elliott		      "Like a bridge he'll come between us, not a wall"
elliott@veronica.cs.wisc.edu