C#

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        private Capture capture = null;
        private Filters filters = new Filters();
      

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
           
            capture = new Capture(filters.VideoInputDevices[0], filters.AudioInputDevices[2]);

            //capture.CaptureComplete += new EventHandler(OnCaptureComplete);
            try
            {
                if (capture.PreviewWindow == null)
                {
                    capture.PreviewWindow = panelVideo;
                    // mnuPreview.Checked = true;
                }
                else
                {
                    capture.PreviewWindow = null;
                    // mnuPreview.Checked = false;
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("Unable to enable/disable preview. Please submit a bug report.\n\n" + ex.Message + "\n\n" + ex.ToString());
            }
            


        }

        private void button2_Click(object sender, EventArgs e)
        {
            capture.FrameEvent2 += new Capture.HeFrame(CaptureDone);
            capture.GrapImg();
        }
        private void CaptureDone(System.Drawing.Bitmap e)
        {
            this.pictureBox.Image = e;
            capture.FrameEvent2 -= new Capture.HeFrame(CaptureDone);
           // pictureBox.Image.Save("ddd.jpg");
        }

        private void button3_Click(object sender, EventArgs e)
        {
            if (!capture.Cued)
                capture.Filename = @"F:\demo.wmv";
            capture.RecFileMode = DirectX.Capture.Capture.RecFileModeType.Wmv;  // Vidow Format is wmv
            capture.Cue();
            capture.Start();
        }

        private void button4_Click(object sender, EventArgs e)
        {
            capture.Stop();
        }
    }
}

Type.GetType(name);