From: Kon Zak
Subject: Extending lisp-editor-pane
Date: Fri, 23 Sep 2005 00:10:24 +0000
Message-ID: <1127434224.046654.266820@z14g2000cwz.googlegroups.com>

I'm wondering if anyone can suggest how I can go about having a
vertical line displayed at, say, column 80 in my Allegro
lisp-editor-pane? I guess I'd have to write some :after method
combination that draws that line for me, but I can't figure out what
method exactly I should use. Or is there a better way of achieving
that?