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From: goldman@apple.UUCP (Phil Goldman)
Newsgroups: comp.sys.mac
Subject: Re: Can a DA specify what area it is opened in?
Message-ID: <6912@apple.UUCP>
Date: Sun, 6-Dec-87 02:20:17 EST
Article-I.D.: apple.6912
Posted: Sun Dec  6 02:20:17 1987
Date-Received: Fri, 11-Dec-87 04:38:02 EST
References: <2454@sfsup.UUCP>
Reply-To: goldman@apple.UUCP (Phil Goldman)
Organization: Apple Computer Inc., Cupertino, USA
Lines: 21



In article <2454@sfsup.UUCP> shap@sfsup.UUCP (J.S.Shapiro) writes:
>Actually, following on to my earlier DA question, it occurs to
>me that some DA's really want to be opened in the application's
>memory, and that under multifinder this is a potential problem.
>
If the DA is Font/DA moved or ResEdited into an application, it will
be opened in that application's world and its windows will be contained
in the app's layer.

If the DA is put in the System File (or is used with Suitcase) it will
be opened in the system heap and its windows will be contained in the
DA Handler's layer.  Note that DAs should not make any assumptions at
all about characteristics of the DA Handler (i.e. the name, the signature,
etc.).  Rather, the most a DA should need to know is if it is in the
application heap or not, and maybe (but hopefully not) the name of the
currently executing application.

-Phil Goldman
Apple Computer