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Path: utzoo!utgpu!utcsri!utegc!utai!garfield!john13
From: john13@garfield.UUCP
Newsgroups: comp.sys.amiga
Subject: Re: Intuition Extensions & other languages
Message-ID: <3620@garfield.UUCP>
Date: Wed, 29-Apr-87 16:20:37 EDT
Article-I.D.: garfield.3620
Posted: Wed Apr 29 16:20:37 1987
Date-Received: Fri, 1-May-87 02:29:13 EDT
References: <3604@garfield.UUCP> <1776@cbmvax.cbmvax.cbm.UUCP>
Organization: CS Dept., Memorial U. of Newfoundland, St. John's
Lines: 17
Summary: found this out later

In article <1776@cbmvax.cbmvax.cbm.UUCP>, carolyn@cbmvax.cbm.UUCP (Carolyn Scheppner CATS) writes:
> 
>    There's one important program that uses the UserData field: WorkBench
> 
>    From looking at the source, it appears to use the UserData field as
> a pointer to a Damage list that it maintains.  

Thanks for the response. I found this out shortly after, and will modify
my menu-changer so that it will only add new items if the UserData is NULL
or points to a list of valid menuitem nodes. However, I realize this won't
stop the list from being trashed if a program decides halfway through to
change UserData.

Oh well. No interesting Workbench menus. Unless...what's this one, ExtData,
not documented? Maybe I could...argh! No! Please, don't hit me! :-)

John