Draw Lines Over Widgets

[Andy Grebe <andyg apogeelabs com>]

I have a list on the left side of the screen and a list on the right. 
What I want to do is click on an item on the left side and while moving
the mouse to the right side, I'd like to be able to draw a line from
where I clicked to where the mouse is.

I've noticed that I can do this with labels when the line doesn't go
over a button or scroll button.  However, I guess since when the
scrollbutton goes into a different state it redraws itself, it then
erases what line was there.

-- 
Andy Grebe
Design Specialist
Software Engineering
North Wales Facility
Apogee Labs, Inc.

(215)699-2060