Path: utzoo!attcan!uunet!dalcs!iisat!mackay
From: mackay@iisat.UUCP (Daniel MacKay)
Newsgroups: comp.sys.apple
Subject: Need help reading 80-column screen on //c.
Message-ID: <150@iisat.UUCP>
Date: 3 Nov 88 02:37:39 GMT
Organization: International Information Service, Dart., NS
Lines: 23


Hello!

I'm writing a tiny application using the 80-column screen that has a 
little editor as one part, and I'd like to use the mouse to move the 
cursor around.

How do I figure out what character was under the cursor and restore it
after the cursor moves away?  How do I read the characters off the 
screen so that I can reprint them highlighted to select a chunk of text?

It must be easy to do; virtually every application I've used does this.
It's easy to do on the 40-column screen, you just add three zero-page
bytes together to find the byte address of the cursor.

I'm programming in Applesloth but I can cook up some assembler if I have
to.   Thanks, guys!
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