Path: utzoo!mnetor!uunet!husc6!cca!jack
From: jack@cca.CCA.COM (Jack Orenstein)
Newsgroups: comp.sys.amiga.tech
Subject: Gadgets and requesters: trying to get started
Message-ID: <27194@cca.CCA.COM>
Date: 19 Apr 88 13:40:53 GMT
Organization: Computer Corp. of America, Cambridge, MA
Lines: 18


I'm trying to learn about requesters and gadgets with the help of Peck's
book and I'm having some trouble. The information in chapter 5 seems
incomplete. In particular, I can't find any discussion of how to attach
a requester to a window. The paint program in chapter 5 doesn't seem to
do it, and the topic isn't discussed in the text. Yet the window data
structure in intuition.h has a FirstRequest field, a DMRequest field
(what does the DM stand for?), and a ReqCount field. I've tried filling
in the FirstRequest field and the ReqCount field, but the requester does
not appear. Also, how do the sizes of the requester and any attached
gadgets relate? Are gadget coordinates relative to the requester or to
the window containing the requester?

Are there other fields (in the requester or window) that have to be set?
Are there commands for displaying and clearing requesters? Are there any
books with more complete information?

Jack Orenstein