C#

public unsafe int[] Capture( Int32 bufferSize ) {
    int[] buf = new int[ bufferSize ];
    fixed ( int* ImageBuffer = buf ) {
        if ( !DcamCaptureReverseX( ImageBuffer, bufferSize ) ) throw new DCamLIBException( this );
    }
    return buf;
}

[DllImport( "DCamLIB.dll" )]
private unsafe static extern bool DcamCapture( int* imageBuffer, Int32 bufferSize );

public unsafe void CaptureReverseX( Int32 bufferSize )
{
	fixed ( int* buf = new int[ bufferSize ] )
	{
		if ( !DcamCapture( buf, bufferSize ) )
		{
			throw new DCamLIBException( this );
		}
		// Here the pointer buf is defined, but the value is still 0
		// It's like the DcamCapture() method does not populate buf
	}
}

void CC9266SmpDlg::OnBtnCapture() 
{
	DWORD	dwRetStatus = DCAM_WAITSTATUS_UNCOMPLETED;
	WORD*	pDataBuff   = NULL;
	int		nWidth, nHeight, nImageSize;

	nWidth = nHeight = nImageSize = 0;

	DcamInitialize();										// Initialize DLL
	DcamOpen();												// Open the device
	DcamSetDriveMode( DCAM_CCDDRVMODE_OPERATION, 3000 );	// Connect the CCD

	DcamSetGain( 1 );										// Set the gain 1
	DcamSetOffset( 10 );									// Set the offset 10
	DcamSetBinning( DCAM_BINNING_1X1 );						// Set the binning 1x1
	DcamSetCCDType( DCAM_CCD_TYPE0 );						// Set the CCD type S8981
	DcamSetTriggerPolarity( DCAM_TRIGPOL_NEGATIVE );		// Set the trigger polarity negative
	DcamSetTriggerMode( DCAM_TRIGMODE_EXT_LEVEL1 );			// Set the trigger mode "External Mode 2"

	DcamGetImageSize( &nWidth, &nHeight );					// Get the image size
	nImageSize = nWidth * nHeight;

	pDataBuff = new WORD[ nImageSize ];

	if( pDataBuff != NULL )
	{
		memset( pDataBuff, '\0', nImageSize );

		// Acquire the image data
		DcamCaptureReverseX( pDataBuff, nImageSize * 2 );

		while( TRUE )
		{
			// Wait to complete the image acquisition
			DcamWait( &dwRetStatus, 0 );

			if( dwRetStatus == DCAM_WAITSTATUS_COMPLETED )
			{
				break;
			}
		}
	}
	else
	{
		DcamClose();
		DcamUninitialize();
		return ;
	}

	// Save data in TIFF form ... Using DCamImg.dll
	DcamImgTiffSave( "c9266.tif", pDataBuff, nWidth, nHeight, 16, 12 );
	
	delete [] pDataBuff;

	DcamStop();											// Stop acquisition
	DcamClose();										// Close the device
	DcamUninitialize();									// Uninitialize DLL
}

static void Main(string[] args)
{
    StaticTest s1 = new StaticTest(); // first time to use StaticTest class, the static constructor
                                      // will be executed before the creation of the object.
    StaticTest s2 = new StaticTest();
    StaticTest s3 = new StaticTest();
}

private void SendMessage()
       {

           try
           {

               listBox6.Items.Add("Connecting....");
       IPEndPoint ipep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 10001);
  Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
               sock.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendBuffer, 1);
               listBox6.Items.Add("Connected");

               byte[] data = new byte[1024];
               String snd = "hello";
               data = Encoding.ASCII.GetBytes(snd);
               listBox6.Items.Add("Transmitting...");
          sock.SendTo(data, 0,data.Length, SocketFlags.None, ipep);
              listBox6.Items.Add("Sent...");
              EndPoint tmpRemote = (EndPoint)ipep;
               listBox6.Items.Add("Message received from {0}:");
               listBox6.Items.Add(ipep.ToString());
               data = new byte[1024];
               int recv = sock.ReceiveFrom(data, 0, data.Length, SocketFlags.None, ref tmpRemote);
               String zz=Encoding.ASCII.GetString(data, 0, recv);
               listBox6.Items.Add(zz);
               if (zz == "Welcome to the Server")
               {
                   lb9.Text = "Active";
                   lb9.BackColor = Color.Green;
               }
               else{
                   lb9.Text = "Inactive";
                   lb9.BackColor=Color.Red;
               }

           }

           catch (SocketException e)
           {
               //Console.WriteLine("Error..... " + e.StackTrace);
               MessageBox.Show(e.Message);

           }
       }

public static void start_server()
       {
             IPEndPoint ipep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 10001);

               Socket newsock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
               newsock.Bind(ipep);
               Console.WriteLine("Waiting for a client...");

               while (true)
               {
                   try
                   {
                       //IPEndPoint sender = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8050);
                       EndPoint tmpRemote = (EndPoint)ipep;
                       // EndPoint tmpRemote = (sender);

                       byte[] data = new byte[1024];
                       Console.WriteLine("hai");

                       int recv = newsock.ReceiveFrom(data, 0, data.Length, SocketFlags.None, ref tmpRemote);
                       Console.WriteLine("gfgjfk");


                       Console.WriteLine("Message received from {0}:", tmpRemote.ToString());
                       Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));//hello is received

                       data = new byte[1024];
                       string ss = "Welcome to the Server";
                       data = Encoding.ASCII.GetBytes(ss);
                       newsock.SendTo(data, 0, data.Length, SocketFlags.None, tmpRemote);


                       Console.WriteLine("\nSent Acknowledgement");

                   }
                   catch (SocketException e)
                   {
                       Console.WriteLine(e.Message);
                   }


                   start_server();
                   //startServer.Start();
               }


           }

       }