public class Application
{
  static void Main (string[] args)
  {
    UIApplication.Main (args);
  }
}

// The name AppDelegate is referenced in the MainWindow.xib file.
public partial class AppDelegate : UIApplicationDelegate
{
  // This method is invoked when the application has loaded its UI and its ready to run
  public override bool FinishedLaunching (UIApplication app, NSDictionary options)
  {
    // If you have defined a view, add it here:
    // window.AddSubview (navigationController.View);

    window.MakeKeyAndVisible ();

    try
    {
      var wc = new WebClient();
      var uri = new Uri("http://www.theipadfan.com/wp-content/uploads/2010/07/barcode.png");
      wc.DownloadFile(uri,"barcode.png");

      UIImage image = UIImage.FromFile("barcode.png");
      var srcbitmap = new System.Drawing.Bitmap(image);

      Reader barcodeReader = new MultiFormatReader();
              LuminanceSource source = new RGBLuminanceSource(srcbitmap, (int)image.Size.Width, (int)image.Size.Height);
              BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
              var result = barcodeReader.decode(bitmap);
              label.Text = result.Text;
    } catch (Exception ex) {
      label.Text = ex.ToString();
      Console.WriteLine(ex.ToString());
    }

    return true;
  }

  // This method is required in iPhoneOS 3.0
  public override void OnActivated (UIApplication application)
  {
  }
}