We need a good set of bindings to interface with X in Ruby, seriously.
This is still in an early stage, so don't expect to do much.
>> X11::Display.new.width
1280It uses ffi to use Xlib and stuff, long live FFI!
Keep in mind that when a Display object gets garbage collected the connection to the X server is closed and the data is free'd, so anything related to that display won't work anymore and could cause crashes.