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From: d88-jwa@nada.kth.se (Jon W{tte)
Newsgroups: comp.sys.mac.programmer
Subject: Re: MultiFinder vs WDEF
Message-ID: <1991Jan7.175451.11276@nada.kth.se>
Date: 7 Jan 91 17:54:51 GMT
References: <1991Jan6.161158.11182@ux1.cso.uiuc.edu>
Organization: Royal Institute of Technology, Stockholm, Sweden
Lines: 26

In article <> dorner@pequod.cso.uiuc.edu (Steve Dorner) writes:
>I fail to see why "Application A cannot continue without user input"
>should INCONTROVERTIBLY imply that "The user must not use Applications B, C,
>and D before she fixes A."

One example is SFGetFile, which uses global space and therefore is
not reentrant. There could be more examples of non-reentrancy. Also,
most modal dialogs are of the error-alert type, and one might argue
that other apps could mess things up during error conditions they
didn't create.

Also, many modals are NOT designed to be updated properly if overdrawn.

>Steve Dorner, U of Illinois Computing Services Office

But, behold ! The MOVABLE MODAL from Apple Computer Inc ! The solution
to all your problems ! Also, you can brew your own modals so as to allow
context switcing out of the app, using plainDBoxes and a little state
logic.

Happy hacking,

							h+
-- 

Jon W{tte, Stockholm, Sweden, h+@nada.kth.se