C#

[StructLayout(LayoutKind.Sequential)]
private struct RECT
{
   public int Left;
   public int Top;
   public int Right;
   public int Bottom;
}
 
enum WM_MESSAGE
{
   WM_NCCALCSIZE = 131,
   WM_NCPAINT = 133,
   WM_NCHITTEST = 132,
   WM_NCLBUTTONDOWN = 161,
}
 
enum WM_NCCALCSIZE
{
   WVR_ALIGNTOP = 16,
   WVR_ALIGNLEFT = 32,
   WVR_ALIGNBOTTOM = 64,
   WVR_ALIGNRIGHT = 128,
   WVR_HREDRAW = 256,
   WVR_VREDRAW = 512,
   WVR_REDRAW = (WVR_HREDRAW | WVR_VREDRAW),
   WVR_VALIDRECTS = 1024
}
 
[StructLayout(LayoutKind.Sequential)]
struct NCCALCSIZE_PARAMS
{
   public RECT rgrc0, rgrc1, rgrc2;
   public IntPtr lppos;
}
 
[StructLayout(LayoutKind.Sequential)]
struct WINDOWPOS
{
   public IntPtr hwnd;
   public IntPtr hwndInsertAfter;
   public int x, y;
   public int cx, cy;
   public int flags;
}
 
[DllImport("User32.dll")]
private extern static IntPtr GetWindowDC( IntPtr hWnd );
 
[DllImport("User32.dll")]
private extern static int ReleaseDC( IntPtr hWnd, IntPtr hDC );
 
[DllImport("User32.dll")] 
public static extern int RedrawWindow(IntPtr hwnd, IntPtr lprcUpdate, IntPtr hrgnUpdate, int fuRedraw);
 
protected override void WndProc(ref Message m)
{
   switch ( m.Msg )
   {
      case (int)WM_MESSAGE.WM_NCCALCSIZE :
         if ( m.WParam == IntPtr.Zero )
         {
            // get the controls bounds
            RECT rect = (RECT) Marshal.PtrToStructure(m.LParam, typeof(RECT));
 
            // set the client area
            rect.Left += 1;
            rect.Top += 5;
            rect.Right -= 1;
            rect.Bottom -= 1;
 
            Marshal.StructureToPtr(rect, m.LParam, false);
         }
         else
         {
            // get the controls bounds
            NCCALCSIZE_PARAMS csp = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS));
 
            // set the client area
            csp.rgrc0.Left += 1;
            csp.rgrc0.Top += 5;
            csp.rgrc0.Right -= 1;
            csp.rgrc0.Bottom -= 1;
 
            Marshal.StructureToPtr(csp, m.LParam, false);
         }
         break;
 
         case (int)WM_MESSAGE.WM_NCPAINT :
         {
            IntPtr hDC = GetWindowDC( m.HWnd );
            Graphics g = Graphics.FromHdc( hDC );
 
            // do some paining in the non-client area
            ...
             
            ReleaseDC( m.HWnd, hDC );
         }
         break;
      }
 
      base.WndProc (ref m);
   }
}
 
protected override void OnSizeChanged(EventArgs e)
{
   base.OnSizeChanged(e);
 
   // force redraw of the entire control (including non-client area)
   //RedrawWindow(this.Handle, IntPtr.Zero, IntPtr.Zero, RDW_FRAME | RDW_UPDATENOW | RDW_INVALIDATE); 
}

for(int i = 0; i < 5;i++)
{
   // Sleep for 5 seconds.
   System.Thread.Sleep(5000);
}

<br />
using System;<br />
using System.Threading; // needs to use Thread class<br />
<br />
namespace ConsoleApplication1<br />
{<br />
	// the class with main function<br />
	class Class<br />
	{<br />
		/// <summary><br />
		/// The main entry point for the application.<br />
		/// </summary><br />
		static void Main()<br />
		{<br />
			// create new Traffic_light object <br />
			Traffic_light t_l = new Traffic_light();<br />
<br />
			// loop 10 times<br />
			for(int i = 0; i < 10; i ++)<br />
			{<br />
				t_l.ShowState(); // show current state<br />
				Thread.Sleep(5000); // wait 5 seconds<br />
			}<br />
			// show exit msg.<br />
			Console.WriteLine("press enter to exit");<br />
			Console.ReadLine();<br />
		}<br />
	}<br />
	<br />
	// the class u need<br />
	class Traffic_light<br />
	{<br />
		// array with ur states<br />
		private string[] Array;<br />
<br />
		// index of currrent state<br />
		private int State;<br />
<br />
		// Constructor to set up default values<br />
		public Traffic_light()<br />
		{<br />
			State = 0;<br />
			Array = new string[] {	"prepare to go",<br />
									"go",<br />
									"prepare to stop",<br />
									"stop"	};<br />
		}<br />
<br />
		// function u need to show current state<br />
		// new call - new state<br />
		public void ShowState()<br />
		{<br />
			State %= Array.Length; // same as: State = State % Array.Length;<br />
			Console.WriteLine(Array[State ++]); // same as: Console.WriteLine(Array[State]); State = State + 1;<br />
		}<br />
	}<br />
}<br />
<br />

DummyProperty = yourValue;

public class User
{
  private string m_strName;
  private string m_strPassword;

  public User(string name, string password)
  {
    Name = name;
    Password = password;
  }

  public string Password
  {
    get { return m_strPassword; }
    set
    {
      if ( ValidPassword(value) )
        m_strPassword = value;
    }
  }

  ...
}