Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!stevec
From: stevec@Apple.COM (Steve Christensen)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Easy way to draw the rubber band??
Message-ID: <53705@apple.Apple.COM>
Date: 6 Jun 91 15:49:56 GMT
References: <30149@hydra.gatech.EDU> <53513@apple.Apple.COM> <1991May31.151716.5814@midway.uchicago.edu>
Organization: Apple Computer Inc., Cupertino, CA
Lines: 20

jcav@quads.uchicago.edu (john  cavallino) writes:
>In article <53513@apple.Apple.COM> stevec@Apple.COM (Steve Christensen) writes:
>>[...about doing rubber-banding, to which John writes...]
>
>All of the futzing around to create the rectangle from the points can be
>eliminated if you use the Quickdraw procedure _Pt2Rect (IM I-175).

I knew that it existed, but I must've been suffering a temporary case of
blindness when perusing those pages in Inside Mac, so I did it the hard way.

Also, in a separate message, it was pointed out the check to see if the mouse
moved should be "if ((newPt.v != lastPt.v) || (newPt.h != lastPt.h))" instead
of "&&".  Brain-deadness on my part, I guess...

steve

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  Steve Christensen			Never hit a man with glasses.
  stevec@apple.com			Hit him with a baseball bat.