Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!kazim
From: kazim@Apple.COM (Alex Kazim)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Follow Up On Centering DLOGs & ALRTs
Summary: HI Tech Note #6
Message-ID: <40233@apple.Apple.COM>
Date: 12 Apr 90 23:32:46 GMT
References: <1990Apr9.125651.23391@ncsuvx.ncsu.edu> <6178@accuvax.nwu.edu>
Distribution: comp
Organization: Apple Computer Inc, Cupertino, CA
Lines: 23

In article <6178@accuvax.nwu.edu> engber@gumball (Mike Engber) writes:
>
>All the solutions I was sent used screenBits.bounds. Is this what you
>want in a multi-monitor situation? If not, what should you do?
>

The location of the dialog should be tied to the area of user 
attention.  For instance, if the alert is an out-of-range alert for
a field in a window, the alert should appear on the same screen as the
"owning" window.

You can do this by walking the GDevice list, determining which screen the
"owning" window is "most" on (SectRect the gDeviceRect with portRect),
and placing the alert on that screen.

Also, I think you should center the alerts using a 1/3 to 2/3, top-to-
bottom ratio.  In English, the space under the dialog is TWICE the
space above the dialog.

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Alex Kazim, Apple Computer
No, but I do get paid for my opinions
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