<Window>
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:Properties="clr-namespace:SpriteAnimation.Properties" x:Class="SpriteAnimation.MainWindow"
        Title="MainWindow" Height="400" Width="555">
    <Grid>
        <Image x:Name="ImageControl" HorizontalAlignment="Left" Height="300" Margin="0,0,0,0" VerticalAlignment="Top" Width="555"/>
    </Grid>
</Window>

  namespace SpriteAnimation
  {
      /// <summary>
      /// Interaction logic for MainWindow.xaml
      /// </summary>
      public partial class MainWindow : Window
      {
          WriteableBitmap writeableBitmap = null;
          BitmapImage bi = null;
          public MainWindow()
          {
              InitializeComponent();
              // DispatcherTimer setup
              DispatcherTimer dispatcherTimer = new DispatcherTimer();
              dispatcherTimer.Tick += new EventHandler(enterFrame);
              dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 0, 50);
              dispatcherTimer.Start();
  
              writeableBitmap = new WriteableBitmap(
                   (int)ImageControl.Width,
                   (int)ImageControl.Height,
                   96,
                   96,
                   PixelFormats.Pbgra32,
                   null);
              ImageControl.Source = writeableBitmap;
              bi = new BitmapImage(new Uri("pack://application:,,,/filmstrip.png"));
  
          }
          int nY = 0;
          private void enterFrame(object sender, EventArgs e)
          {
              // Calculate stride of source
              int nRowBytes = bi.PixelWidth * (bi.Format.BitsPerPixel / 8);
  
              // Create data array to hold source pixel data
              byte[] data = new byte[nRowBytes * 300];
  
              // Copy source image pixels to the data array
              bi.CopyPixels(new Int32Rect(0, nY*300, bi.PixelWidth, 300), data, nRowBytes, 0);
              writeableBitmap.WritePixels(
                  new Int32Rect(0, 0, bi.PixelWidth, 300),
                  data, nRowBytes, 0);
              if (++nY == 100) nY = 0;
          }
      }
  }