Blog Post #85: Nodes-n-noodles, Part IV - A Node from a DrawingArea

[Ron Tarrant via Digitalmars-d-learn]

A day late, but here we are...
Diving back into the Nodes-n-noodles series, we look at how to 
build a moveable node from a DrawingArea. You can find it here: 
https://gtkdcoding.com/2019/11/05/0085-nodes-iv-node-drawing.html