--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ruby/rbdc/examples/win32screenres.rb	Thu Mar 19 22:26:28 2015 +0100
@@ -0,0 +1,18 @@
+#//////////////////////////////////////////////////////////////////////
+#
+#	win32screeninfo.rb
+#	Copyright 2007 Tassilo Philipp
+#
+#	Dyncall sample loading user32.dll on windows and displaying a
+#	native windows message box by calling MessageBoxA(...).
+#
+#///////////////////////////////////////////////////////////////////////
+
+require 'rbdc'
+
+l = Dyncall::ExtLib.new
+if l.load('user32') != nil
+  puts 'width:                ' + l.call(:GetSystemMetrics, 'i)i',  0).to_s
+  puts 'height:               ' + l.call(:GetSystemMetrics, 'i)i',  1).to_s
+  puts 'number of monitors:   ' + l.call(:GetSystemMetrics, 'i)i', 80).to_s
+end