Recently I've tried to create something similar to the www.drawball.com
I've tried to do it in several ways, yet they were either not very successful or extremely inefficient.
I've managed to create pretty good color/tool selector, yet saving data, and especially zooming in/out is problematic.
At the moment I don't see any better way to do it than millions of values in ini files. And well, that's not very efficient to say the least.
Does anyone have any tips for such free-for-all drawing wall? Thanks!