main.cs

	public class CustomNSApplication : NSApplication
	{
		public CustomNSApplication (IntPtr handle) 	: base (handle) { }

		public override void SendEvent (NSEvent theEvent)
		{
			base.SendEvent (theEvent);
			System.Console.WriteLine ("SendEvent");
		}
	}

	static class MainClass
	{
		[DllImport ("/usr/lib/libobjc.dylib", EntryPoint = "objc_msgSend")]
		public extern static IntPtr IntPtr_objc_msgSend (IntPtr receiver, IntPtr selector);

		static void Main (string[] args)
		{
			NSApplication.Init ();
			var appClassHandle = Class.GetHandle (typeof (CustomNSApplication));
			var selector = new Selector ("sharedApplication");
			var nsappHandle = IntPtr_objc_msgSend (appClassHandle, selector.Handle);
			var customNSApplication = new CustomNSApplication (nsappHandle);
			NSApplication.Main (args);
		}
	}