require 'CLRPackage' import "System.Windows.Forms" import "System.Drawing" form = Form() form.Text = "Hello, World!" button = Button() button.Text = "Click Me!" button.Location = Point(20,20) button.Click:Add(function() MessageBox.Show("We wuz clicked!",arg[0],MessageBoxButtons.OK) end) form.Controls:Add(button) form:ShowDialog()