using System;
using System.Threading;
using System.Runtime.InteropServices;

namespace ThreadStuff
{
	class Class1
	{
		[DllImport("kernel32.dll", CharSet=CharSet.Auto)]
		public extern static int GetCurrentThreadId();

		[STAThread]
		static void Main(string[] args)
		{
			Console.WriteLine("Begin Main(clr): " +  System.AppDomain.GetCurrentThreadId().ToString() );
			Console.WriteLine("Begin Main(win32): " + Class1.GetCurrentThreadId().ToString() );
			Console.WriteLine("Begin Main(hash): " + Thread.CurrentThread.GetHashCode().ToString() );
			Foo foo = new Foo();
			ThreadStart threadStart = new ThreadStart( foo.Bar );
			Thread thread = new Thread(threadStart);
			thread.Start();
			Console.WriteLine("End Main(clr): " + System.AppDomain.GetCurrentThreadId().ToString() );
			Console.WriteLine("End Main(win32): " + Class1.GetCurrentThreadId().ToString() );
			Console.WriteLine("End Main(hash): " + Thread.CurrentThread.GetHashCode().ToString() );
			Console.ReadLine();
		}
	}

	public class Foo
	{
		public void Bar()
		{
			Console.WriteLine("Bar(clr):" +  System.AppDomain.GetCurrentThreadId().ToString() );
			Console.WriteLine("Bar(win32): " + Class1.GetCurrentThreadId().ToString() );
			Console.WriteLine("Bar(hash): " + Thread.CurrentThread.GetHashCode().ToString() );
		}
	}
}