Path: utzoo!attcan!uunet!munnari!iand
From: iand@munnari.oz (Ian Robert Dobson)
Newsgroups: comp.sys.mac.programmer
Subject: Re: What do InitGraf (etc) do?
Message-ID: <2582@munnari.oz>
Date: 23 Nov 88 01:42:59 GMT
References: <988@etive.ed.ac.uk>
Organization: Comp Sci, Melbourne Uni, Australia
Lines: 13

> A short and sweet question: Why do my programs have to call InitGraf(),
> InitTE(), InitDialogs() and all the rest of this stuff?

The Initialization routines build vital data structures in the application
heap (like the QuickDraw global variables, the TextEdit scrap, etc.).  If you
don't call them then the structures won't be there when they are needed and
your program will bomb.
   Every time you quit to the finder or launch an application a new 
application heap is made so the init routines must be called again.

Ian R. Dobson.
University of Melbourne
munnari!iand