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From: dorner@pequod.cso.uiuc.edu (Steve Dorner)
Newsgroups: comp.sys.mac.programmer
Subject: Re: How can I ensure a Rect is visible on screen?
Message-ID: <1990Nov15.152425.8139@ux1.cso.uiuc.edu>
Date: 15 Nov 90 15:24:25 GMT
References: <2472@gould.doc.ic.ac.uk>
Sender: news@ux1.cso.uiuc.edu (News)
Reply-To: dorner@pequod.cso.uiuc.edu (Steve Dorner)
Organization: University of Illinois at Urbana-Champaign
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In article <2472@gould.doc.ic.ac.uk> np@doc.ic.ac.uk (Nigel Perry) writes:
>a large one). Is there a method for ensuring a Rect is within
>a region

RectInRgn will tell you if part of the rectangle is in the region.
Once you know that, use RectRgn to make a region of the rectangle.
SectRgn this with the region you're interested in.  Use EqualRgn
to see if the intersection is the same as the rectangle's region.

>and if not moving it so that it is?

Now there's an interesting problem.

I'm not convinced that centering a dialog on a window is a good idea if
it results in the dialog being split over multiple screens, but you probably
aren't interested in my opinion.
--
Steve Dorner, U of Illinois Computing Services Office
Internet: s-dorner@uiuc.edu  UUCP: uunet!uiucuxc!uiuc.edu!s-dorner