Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!usc!apple!dlyons
From: dlyons@Apple.COM (David A. Lyons)
Newsgroups: comp.sys.apple
Subject: Re: Gs/OS Error $0004
Message-ID: <38720@apple.Apple.COM>
Date: 18 Feb 90 06:19:23 GMT
References: <1990Feb18.043305.5349@ux1.cso.uiuc.edu>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 22

In article <1990Feb18.043305.5349@ux1.cso.uiuc.edu> jb10320@uxa.cso.uiuc.edu (Jawaid Bazyar) writes:
>Can anyone tell me what GS/OS error 4 is?  I'm getting this trying to read
>from a file (using ReadGS in Orca/c), but neither the ORCA manual nor my
>outdated Prodos 16 manual list an error $04.

It's in the GS/OS manual (APDA); just like under ProDOS 8, error $04 is an
invalid parameter count.  Under P8 there's a single correct parameter count
for a given call (almost always), but with a class-1 GS/OS call (like ReadGS)
there is a range of valid counts (that is, all the parameters after the first
N of them are optional & have reasonable defaults/etc).

If you don't have the GS/OS manual, you probably don't mean to be making the
xxxGS calls (you can use the class-0 ProDOS 16-compatible calls instead, for
most operations).
-- 
David A. Lyons, Apple Computer, Inc.      |   DAL Systems
Apple II Developer Technical Support      |   P.O. Box 875
America Online: Dave Lyons                |   Cupertino, CA 95015-0875
GEnie: D.LYONS2 or DAVE.LYONS         CompuServe: 72177,3233
Internet/BITNET:  dlyons@apple.com    UUCP:  ...!ames!apple!dlyons
   
My opinions are my own, not Apple's.