Mono gtk helloworld

hello.cs

// http://www.mono-project.com/docs/getting-started/mono-basics/

using Gtk;
using System;
 
class Hello
{
        static void Main ()
        {
                Application.Init ();

                Window window = new Window ("Hello Mono World");
                window.Show();

                Application.Run();
        }
}

makefile

# https://stackoverflow.com/a/20911487

.PHONY: hello.cs

all: run

hello.exe: hello.cs
        @mcs hello.cs -pkg:gtk-sharp-3.0

clean:
        @rm -f hello.exe

run: hello.exe
        @ mono hello.exe