Demonstrate the window ruby binding

git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/branches/sfml2@1647 4e206d99-4929-0410-ac5d-dfc041789085

bindings/ruby/testing/window-demo.rb

@@ -0,0 +1,17 @@
+require 'sfml/system'
+require 'sfml/window'
+
+app = SFML::Window.new( SFML::VideoMode.new( 800, 600 ), "My Ruby SFML" )
+input = app.input
+
+while app.open?
+  while event = app.get_event
+    if event.type == SFML::Event::Closed
+      app.close
+    end
+  end
+  
+  p [input.mouse_x, input.mouse_y]
+  
+  app.display
+end