private void bwGetUdp_DoWork(object sender, DoWorkEventArgs e)
{
    receiveClient = new UdpClient(50000);
    receivePoint = new IPEndPoint(new IPAddress(0), 0);

    while (true)
    {
        if (bwGetUdp.CancellationPending)
        {
            receiveClient.Close();
            e.Cancel = true;
        }
        else
        {
            byte[] data = receiveClient.Receive(ref receivePoint);
            MemoryStream ms = new MemoryStream(data);

            Invoke(new SetStreamPictureDelegate(SetStreamPicture), new object[] { Image.FromStream(ms) });
            Invoke(new ChangeReceivingLabelDelegate(ChangeReceivingLabel), new object[] { receivePoint.Address + ":" + receivePoint.Port });

            ms.Flush();
            ms.Close();
        }
    }
}

Filters filters = new Filters();

cam = new Capture(filters.VideoInputDevices[0], filters.AudioInputDevices[0]);

cam.PreviewWindow = panelMyVideo;
cam.FrameEvent2 += new Capture.HeFrame(CaptureDone);

sendClient = new UdpClient(50001);
sendPoint = new IPEndPoint(IPAddress.Parse(this.toUserIP), 50000);
timerTakePic.Enabled = true;

private delegate void SetStreamPictureDelegate(Image img);
private void SetStreamPicture(Image img)
{
    pictureBoxOtherVideo.Image = img;
}

private void CaptureDone(Bitmap e)
{
    MemoryStream ms = new MemoryStream();
    e.Save(ms, ImageFormat.Jpeg);

    Invoke(new ChangeSendingLabelDelegate(ChangeSendingLabel), new object[] { sendPoint.Address + "... " + Convert.ToInt32(ms.ToArray().Length) / 1024 + "KB" });
    sendClient.Send(ms.ToArray(), Convert.ToInt32(ms.Length), sendPoint);

    ms.Flush();
    ms.Close();
}

private void freezeFrame_MouseClick(object sender, MouseEventArgs e)
       {
           Bitmap refImage = new Bitmap(freezeFrame.Image);    //freezeFrame = picture box control

           int rangeLimit = 20;
           txtMouseX.Text = e.X.ToString();
           txtMouseY.Text = e.Y.ToString();
           int mouseX = int.Parse(txtMouseX.Text);
           int mouseY = int.Parse(txtMouseY.Text);



           Color currentPixel = (refImage.GetPixel(mouseX, mouseY));

          curPixelRed.Text = currentPixel.R.ToString();
          curPixelGreen.Text = currentPixel.G.ToString();
          curPixelBlue.Text = currentPixel.B.ToString();

           redMinUpDown.Value = currentPixel.R - rangeLimit;
           redMaxUpDown.Value = currentPixel.R + rangeLimit;

           greenMinUpDown.Value = currentPixel.G - rangeLimit;
           greenMaxUpDown.Value = currentPixel.G + rangeLimit;

           blueMinUpDown.Value = currentPixel.B - rangeLimit;
           blueMaxUpDown.Value = currentPixel.B + rangeLimit;


       }