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From: ldo@waikato.ac.nz (Lawrence D'Oliveiro, Waikato University)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Wanted - Gestalt traps
Message-ID: <1991Mar28.194303.3273@waikato.ac.nz>
Date: 28 Mar 91 07:43:03 GMT
Article-I.D.: waikato.1991Mar28.194303.3273
References: <91085.093303CXT105@psuvm.psu.edu>
Organization: University of Waikato, Hamilton, New Zealand
Lines: 38

Let's see, a quick disassembly of GestaltGlue.a.o yields the following:

* Gestalt is A-trap $A1AD

  inputs:
	D0.L <- selector : OSType
  outputs:
	D0.W -> status : OSErr
	A0   -> response : LongInt

* NewGestalt is A-trap $A3AD

  inputs:
	D0.L <- selector : OSType
  	A0   <- gestaltFunction : ProcPtr
  outputs:
	D0.W -> status : OSErr

* ReplaceGestalt is A-trap $A5AD

  inputs:
	D0.L <- selector : OSType
  	A0   <- gestaltFunction : ProcPtr
  outputs:
	D0.W -> status : OSErr
	A0   -> oldGestaltFunction : ProcPtr

Note that these are all calls to the same trap ($A0AD) with
different settings for the flag bits.

Let's hope I got that right...

Lawrence D'Oliveiro                       fone: +64-71-562-889
Computer Services Dept                     fax: +64-71-384-066
University of Waikato            electric mail: ldo@waikato.ac.nz
Hamilton, New Zealand    37^ 47' 26" S, 175^ 19' 7" E, GMT+12:00
"Letters may be excerpted or edited for clarity (or to make them look
like they say what we wish they did)."          -- "develop" magazine