Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!wuarchive!udel!eplrx7!leipold
From: leipold@eplrx7.uucp (Walt Leipold)
Newsgroups: comp.sys.mac.programmer
Subject: Control Manager question
Message-ID: <1991Jan16.200346.17087@eplrx7.uucp>
Date: 16 Jan 91 20:03:46 GMT
Sender: usenet@ee.udel.edu
Organization: DuPont Engineering Physics Lab
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Nntp-Posting-Host: louie.udel.edu

According to Inside Mac I..V, the standard CDEF only works in windows whose
origin is (0,0).  I have an application in which I'd like to simulate a
large physical control board (e.g., for a simulated chemical plant) with a
scroll bar for each physical control, and would like to be able use the
window scrollbars to move the view around in this array of controls.  This
would be a piece of cake if I could just scroll the window by diddling its
origin.  If I can't scroll the window, I'll have to call MoveControl for
every control every time my window is scrolled, which is probably slow and
certainly inelegant.

Does anybody know if the window origin restriction has been lifted in later
versions of the standard CDEF?  (Why is the restriction there, anyway?)
Should I (ugh) write my own scrollbar CDEF?  Or can someone suggest another
method to simulate a large physical array of controls?

Thanks!

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"Marriage is like a phone call in the night.                  Walt Leipold
First the ring, and then you wake up."          (leipolw%esvax@dupont.com)
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