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From: george@m2xenix.psg.com (George Emery)
Newsgroups: comp.sys.atari.st.tech
Subject: Drawing rubber-bands
Message-ID: <1991May23.160310.2034@m2xenix.psg.com>
Date: 23 May 91 16:03:10 GMT
Organization: Pacific Systems Group, Portland Oregon US
Lines: 13

In drawing programs, it's common to allow lines between the mouse cursor
and a fixed point.  Another example is the rubber-band boxes for selecting
a screen area.  Would some kind soul tell me how they're done?

It's easy enough to determine the start point by using the EventMulti
loop to detect the mouse button's first click, but how does one keep
track of the mouse cursor and draw to it AND know when the mouse button
is clicked again?

Is it necessary to drop out of the EventMulti loop and use lower-level
facilities?

george@m2xenix.psg.com