#!/usr/bin/env ruby
require 'tk'
TkRoot.new {title "Ruby is fun!" }
TkLabel.new {
font TkFont.new( 'mistral 42' )
text "Ruby is fun, in case you didn't notice!"
width 30
height 3
fg 'blue'
pack
}
TkButton.new {
text 'Quit'
command 'exit'
pack
}
Tk.mainloop