Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!apple!keith
From: keith@Apple.COM (Keith Rollin)
Newsgroups: comp.sys.mac.programmer
Subject: Re: How do you open your application's own data fork?
Message-ID: <54498@apple.Apple.COM>
Date: 1 Jul 91 01:29:51 GMT
References: <1991Jun29.002528.4831@neon.Stanford.EDU> <54493@apple.Apple.COM> <54497@apple.Apple.COM>
Organization: Apple Computer Inc., Cupertino, CA
Lines: 28

In article <54497@apple.Apple.COM> mkelly@Apple.COM (Michael Kelly) writes:
>In article <54493@apple.Apple.COM> keith@Apple.COM (Keith Rollin) writes:
>>In article <1991Jun29.002528.4831@neon.Stanford.EDU> commons@Sunburn.Stanford.EDU (Peter Commons) writes:
>>>The title says it all. I want to store and retrieve data from an application's
>>>own data fork. How do you open it/ get a reference number for it?
>>
>>The idea that immediately occurs to me is to get the application's
>>resource fork refNum by calling CurResFile() at the start of your
>>application. Next, find the location and name of the resource file by
>>calling GetFCBInfo().  That will give you the vRefNum, dirID, and file
>>name that you need to call HOpen().
>>
>
>Why don't you just call GetAppParms (as documented in IM II, pg. 58).  It
>returns the name of your application, the reference number for the 
>application's resource file, and a handle to some finder information (info
>about documents that were selected when the application was launched).

Right! I _knew_ there was a better way! Do what Mike says, not what I
said. I was recently playing around with INITs (which don't get to
call GetAppParms), and forgot the correct way of doing things.

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