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From: yahnke@vms.macc.wisc.edu (Ross Yahnke, MACC)
Newsgroups: comp.sys.mac.programmer
Subject: How do you grab lines like MacDraw?
Message-ID: <4176@dogie.macc.wisc.edu>
Date: 9 Aug 90 14:47:12 GMT
Sender: news@dogie.macc.wisc.edu
Organization: University of Wisconsin Academic Computing Center
Lines: 12

In programming a MacDraw style environment where the
user can click-n-drag objects around, it's ez enuf to grab
objects with mass like squares and rectangles. You just see if
the clicked on pixel is in any of the regions defined by the
objects, i.e., you do a "PtInRgn()" call. 

But what if the object is a line? Can a region be defined to
be a line, w/no thickness? I'm posting this for a friend who
said he tried creating a region w/only a line in it and
subsequent PtInRgn calls would fail... any ideas?

>>> yahnke@macc.wisc.edu <<<