C#

...
bool IgnoreChangeEvent = false;
...
if (condition)
{
    IgnoreChangeEvent=true;
    box.SelectedIndex = -1;
}
 ...
box.SelectedIndex_Changed(object sender, EventArgs e)
{
  if (IgnoreChangeEvent)
   {
     IgnoreChangeEvent=false;
      return;
   }
  ... determine if action is needed
 }

axWebBrowser1.ExecWB(
  71, // IDM_SAVEAS
  0, // OLECMDEXECOPT_DODEFAULT,
  path, // The path to save the file
  null);

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(
  "https://somesecureserver/path/image.gif");
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
// Now write out the response to a file

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
			HttpWebResponse response = (HttpWebResponse)request.GetResponse();

IHTMLWindow2 window = (IHTMLWindow2)axWebBrowser;
if (window != null)
{
  httpRequest.UserAgent = window.navigator.userAgent;
}

<code>
private void getimage()
{
Control c = this.axWebBrowser1 as Control;
Bitmap bmp = CaptureControl(c);
bmp.Save("codeword.jpeg",ImageFormat.Jpeg);
}

[System.Runtime.InteropServices.DllImport("gdi32.dll")] private static extern bool BitBlt(IntPtr hdcDest, int nXDest, int nYDest, int nWidth, int nHeight, IntPtr hdcSrc, int nXSrc, int nYSrc, System.Int32 dwRop);
		public static Bitmap CaptureControl(System.Windows.Forms.Control control)
		{
			Graphics g1 = control.CreateGraphics();
			Bitmap bitmap = new Bitmap(control.ClientRectangle.Width, control.ClientRectangle.Height, g1);
			Graphics g2 = Graphics.FromImage(bitmap);
			IntPtr dc1 = g1.GetHdc();
			try
			{
				IntPtr dc2 = g2.GetHdc();
				try
				{
					BitBlt(dc2, 0, 0, control.ClientRectangle.Width, control.ClientRectangle.Height, dc1, 0, 0, 13369376);
				}
				finally
				{
					g2.ReleaseHdc(dc2);
				}
			}
			finally
			{
				g1.ReleaseHdc(dc1);
			}
			return bitmap;
		}</code> 

using (Graphics g1 = control.CreateGraphics())
{
  // ...
}

Graphics g1 = control.CreateGraphics();
try
{
  // ...
}
finally
{
  if (g1 != null) g1.Dispose();
}

objClass1 = new Class1();<br />
objClass1 = new Thread(new ThreadStart(StartMoveKing));<br />
objClass1.Start();<br />
// also<br />
<br />
objClass2 = new Class2();<br />
objClass2 = new Thread(new ThreadStart(StartMoveQueen));<br />
objClass2.Start();

 public class Chess()
 {
   ...
   public void MoveKing(chessBoard);
   {
       do {
       Stack[] moveStacks = new Stack[10];
       // construct move stacks analyze weigh move
         ....
         // reached decision to end myself
         if (moveMade)
         {
         move = "K-KR3";
         this.Threading.Thread.Stop();
         }
         ...
       } while (threadExecutionRequired);
       // now determine which was best move
       // when my thinking was interuptted
       move = "RESIGN";
    }
    public Chess()
    {
       IntializeComponents();
       threadExecutionRequired=false;
    }
    public void PlayChess()
    {
       ....
    }
    private void MakeMyMove()
    {
      Thread moveThread = new Thread(MoveKing);
       moveThread.Start();
       this.formTimer.Start();
    }
    private formTimer_Tick(...)
    {
       if (ICantWaitAnyLonger)
        {
           threadExecutionRequired=false;
         }
        if (move != null) // a move was announced
        {
           //update form within apartment thread
          MakeMyMove(move);
          DisplayBoard(chessBoard);
          formTimer.Stop();
         }
    }
}