Mono Window

using System.Windows.Forms;
using System.Drawing;

// http://zetcode.com/gui/csharpwinforms/introduction/
// http://www.codeproject.com/Articles/9407/Introduction-to-Mono-Your-first-Mono-app

// gmcs -r:System.Windows.Forms.dll -r:System.Drawing.dll MonoWindow.cs
// macpack -n:MonoWindow -a:MonoWindow.exe

public class Program : Form {
  
	public Program() {
		Text = "Simple Window";
		Size = new Size(250, 200);
		CenterToScreen();
	}
	
	static void Main(string[] args) {
		Application.Run(new Program());
	}
}