Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!keith
From: keith@Apple.COM (Keith Rollin)
Newsgroups: comp.sys.mac.programmer
Subject: Re: THINK C and SFGetFile w/FSOpen
Message-ID: <42918@apple.Apple.COM>
Date: 12 Jul 90 20:25:26 GMT
References: <6533.269b32ac@umiami.miami.edu>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 33

In article <6533.269b32ac@umiami.miami.edu> chuck@umiami.miami.edu writes:
>Hello folx.
>
>I'm working with THINK C 4.0.2.  I'm trying to do a simple SFGetFile and 
>FSOpen procedure to open up a file so I can do some processing.  For some
>reason, it seems that the SFGetFile is getting a bad address, and I get a
>system bomb when FSOpen is called.  Any ideas?  Check out my code below.
>By the way, the SFGetFile dialog box comes up, and myWindow shows up, too.
>Everything points to a problem with either where reply points to, or a problem
>with the way I'm handling FSOpen.
>
>where.v=100;
>where.h=100;
>SFGetFile(where," ",0L,0,'',0L,&reply);

I think there are at least 3 problems with this call:

1) for a prompt string, you are passing a pointer to a C string with one
character in it; a space. You should really be passing a Pascal string: "\p".

2) you are passing 0 for numTypes. This is an invalid value. If you don't
want to specify any types, pass a -1. This is documented in Inside Mac.

3) you are passing '' where you should be passing a pointer to a typeList. In
C, I think it should be OK to specify *(SFTypeList *)0L if you don't have
a typelist that will be used.

-- 
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"Argue for your Apple, and sure enough, it's yours" - Keith Rollin, Contusions