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Path: utzoo!mnetor!uunet!husc6!cca!mirror!ishmael!inmet!lipsett
From: lipsett@inmet.UUCP
Newsgroups: comp.sys.mac
Subject: Missing deactivate events
Message-ID: <127200007@inmet>
Date: Fri, 9-Oct-87 16:33:00 EDT
Article-I.D.: inmet.127200007
Posted: Fri Oct  9 16:33:00 1987
Date-Received: Mon, 12-Oct-87 21:37:07 EDT
Lines: 26
Nf-ID: #N:inmet:127200007:000:1202
Nf-From: inmet.UUCP!lipsett    Oct  9 16:33:00 1987



I am writing an application that requires/allows multiple windows with
similar contents.  While a window is active, I want to maintain the
contents of the window in a data structure that is appropriate for
various data manipulations.  However, that form takes a lot of space,
so when the window is inactive, I want to compress the data structure
until the window is reactivated.  So, I use the refcon field in each
window to hold its compressed data.  Activate events extract and
uncompress the data; deactivate events compress the data and save it
in the refcon field.

This works fine in general.  However, when I throw an alert box up on
the screen, deactivate events either are not generated for the windows
covered by the alert box or else the alert box toolbox routine eats
them.  As a result, when the alert box is dismissed, the resulting
activate and update events lose badly, and either the windows are
displayed wrong or I get a bomb of one kind or another.

Either I am missing something obvious, or I have to call my deactivate
routine explicitly before calling NoteAlert, or I am just trying to be
too fancy with my refcon's, or...???

Thanks,
Roger Lipsett
{ihnp4,mirror}!inmet!lipsett