Hello Daniel,
Cairo is good for drawing; it has a very easy to learn API. I had a
binding, but haven't touched it in ages; it's in bindings on
dsource.org if you want to take a crack at it. Failing that, the C
api isn't that hard to learn.
Some URLs:
Cairo: http://www.cairographics.org/
Old cairo binding (also includes a basic tutorial):
http://dsource.org/projects/bindings/browser/trunk/cairo
Win32 libraries (you want cairo, libpng and zlib):
http://ftp.gnome.org/pub/gnome/binaries/win32/dependencies/
-- Daniel
Works well. I needed to find libpng13.dll (it wasn't on the site you listed)
but that might have been from an odd version issue or some such. I ended
up taking about 2 hours to sort the kinks out but about half of that was
figuring out how to make my data feed into Cairo.