Hi,
I started rewriting a screen capture application of mine in ruby in order 
to test some ruby bindings for the Enlightenment Foundation Libraries).
In the c version, I use Imlib2 to grab screen data, but it doesn't look
like the imlib2 ruby bindings can do this yet. (The X specific calls
aren't finished).

I next thought about using RMagick, but it seems as though it can only
capture the entire screen. Is this a limitation of RMagick or ImageMagick? 

Finally, are there any other ruby-bound libs out there that can grab
pixel data from the screen?

Thanks,
Brian Mattern