using System;
using System.Drawing;
using System.Diagnostics;
using System.Windows.Forms;
using System.Threading;
class TestForm : Form
{
	static void Main ()
	{
		Application.Run (new TestForm ());
	}

	public TestForm ()
	{
		this.WindowState = FormWindowState.Maximized;
		
		Panel p = new MyPanel ();
		p.Dock = DockStyle.Fill;
		p.BackColor = Color.Aqua;
		this.Controls.Add (p);
	}

	protected override void WndProc (ref Message m)
	{
		if (m.Msg == 0x0018)
			Console.WriteLine ("Control {0} received message {1}", this.IsHandleCreated ? this.Handle.ToString() : this.Text, m.ToString ());
			
		base.WndProc (ref m);
	}
	
	private class MyPanel : Panel
	{
		protected override void OnVisibleChanged (EventArgs e)
		{
			Console.WriteLine ("Panel OnVisible Called: {0}", this.Visible);
			base.OnVisibleChanged (e);
		}
	}
}