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From: singer@endor.harvard.edu (Richard Siegel)
Newsgroups: comp.sys.mac
Subject: Re: ScreenBits.bounds from an FKEY (to usceast!pgn)
Message-ID: <3035@husc6.UUCP>
Date: Thu, 22-Oct-87 09:35:39 EDT
Article-I.D.: husc6.3035
Posted: Thu Oct 22 09:35:39 1987
Date-Received: Sun, 25-Oct-87 00:45:01 EDT
Sender: news@husc6.UUCP
Reply-To: singer@endor.UUCP (Richard Siegel)
Organization: THINK Technologies, Inc., Bedford, MA
Lines: 27

> To: harvard!ames!scubed!usceast!pgn

	The mailer at SCUBED.Arpa choked on this path.

Here's my response to your question; it may also be of general interest to
the net; the original question was about how to use screenBits.bounds from
an FKEY.

You can't use ScreenBits.bounds from a DA or FKEY, because code resources
(non-applications) can't use global variables. The solution is simply to
open a new GrafPort, and get its portRect -- for a newly opened grafPort
the portRect is the same as screenBits.bounds.

	After you get the bounds, you can close it again.

A future version of Lightspeed Pascal will probably support the use of global
variables from DA's and possibly other code resources.

		--Rich


**The opinions stated herein are my own opinions and do not necessarily
represent the policies or opinions of my employer (THINK Technologies, Inc).

* Richard M. Siegel | {decvax, ucbvax, sun}!harvard!endor!singer    *
* Customer Support  | singer@endor.harvard.edu			    *
* THINK Technologies, Inc.  (No snappy quote)                       *