Public Overridable Sub UpdateImageFromSource() 

Dim instance As RasterImageViewer
 
instance.UpdateImageFromSource()

public virtual void UpdateImageFromSource()

public:
virtual void UpdateImageFromSource(); 

Public Sub ImageViewer_UpdateImageFromSource(ByVal viewer As RasterImageViewer)
      Dim bitmapImage As BitmapImage = New BitmapImage(New Uri(Path.Combine(LEAD_VARS.ImagesDir, "cannon.jpg")))
      'Convert to Bgr32a
      Dim convertedBitmap As FormatConvertedBitmap = New FormatConvertedBitmap(bitmapImage, PixelFormats.Bgra32, Nothing, 1)

      viewer.Source = New WriteableBitmap(convertedBitmap)

      Dim writeableBitmap As WriteableBitmap = TryCast(viewer.Source, WriteableBitmap)

      Dim pixels As Integer() = New Integer(writeableBitmap.PixelWidth * writeableBitmap.PixelHeight - 1) {}
      Dim stride As Integer = writeableBitmap.PixelWidth * 4

      writeableBitmap.CopyPixels(pixels, stride, 0)

      ' Fill the bitmap with Red.
      Dim i As Integer = 0
      Do While i < writeableBitmap.PixelWidth
         Dim j As Integer = 0
         Do While j < writeableBitmap.PixelHeight
            Dim color_data As Integer = (255 << 24) Or (0 << 16) Or (0 << 8) Or 0
            Dim pos As Integer = i + j * writeableBitmap.PixelWidth
            pixels(pos) = color_data
            j += 1
         Loop
         i += 1
      Loop

      Dim sourceRect As Int32Rect = New Int32Rect(0, 0, writeableBitmap.PixelWidth, writeableBitmap.PixelHeight)
      writeableBitmap.WritePixels(sourceRect, pixels, stride, 0)

      viewer.UpdateImageFromSource()
   End Sub


Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

public void ImageViewer_UpdateImageFromSource(RasterImageViewer viewer)
   {
      BitmapImage bitmapImage = new BitmapImage(new Uri(Path.Combine(LEAD_VARS.ImagesDir, "cannon.jpg")));
      //Convert to Bgr32a
      FormatConvertedBitmap convertedBitmap = new FormatConvertedBitmap(bitmapImage, PixelFormats.Bgra32, null, 1);

      viewer.Source = new WriteableBitmap(convertedBitmap);

      WriteableBitmap writeableBitmap = viewer.Source as WriteableBitmap;

      int[] pixels = new int[writeableBitmap.PixelWidth * writeableBitmap.PixelHeight];
      int stride = writeableBitmap.PixelWidth * 4;

      writeableBitmap.CopyPixels(pixels, stride, 0);

      // Fill the bitmap with Red.
      for (int i = 0; i < writeableBitmap.PixelWidth; ++i)
      {
         for (int j = 0; j < writeableBitmap.PixelHeight; ++j)
         {
            int color_data = (255 << 24) | (0 << 16) | (0 << 8) | 0;
            int pos = i + j * writeableBitmap.PixelWidth;
            pixels[pos] = color_data;
         }
      }

      Int32Rect sourceRect = new Int32Rect(0, 0, writeableBitmap.PixelWidth, writeableBitmap.PixelHeight);
      writeableBitmap.WritePixels(sourceRect, pixels, stride, 0);

      viewer.UpdateImageFromSource();
   }


static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

public void ImageViewer_UpdateImageFromSource(RasterImageViewer viewer)
{
   RasterCodecs codecs = new RasterCodecs();
   RasterImage image = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "cannon.jpg");
   //Convert to Bgr32a
   ColorResolutionCommand cmd = new ColorResolutionCommand(ColorResolutionCommandMode.InPlace, 32, RasterByteOrder.Bgr, RasterDitheringMethod.None, ColorResolutionCommandPaletteFlags.None, null);
   cmd.Run(image);

   Stream stream = new MemoryStream();
   codecs.Save(image, stream, RasterImageFormat.Bmp, image.BitsPerPixel);
   BitmapImage imgSource = new BitmapImage();
   imgSource.SetSource(stream);
   viewer.Source = imgSource;

   WriteableBitmap writeableBitmap = viewer.Source as WriteableBitmap;

   int[] pixels = new int[writeableBitmap.PixelWidth * writeableBitmap.PixelHeight];
   int stride = writeableBitmap.PixelWidth * 4;

   Array.Copy(writeableBitmap.Pixels, pixels, stride);

   // Fill the bitmap with Red.
   for (int i = 0; i < writeableBitmap.PixelWidth; ++i)
   {
      for (int j = 0; j < writeableBitmap.PixelHeight; ++j)
      {
         int color_data = (255 << 24) | (0 << 16) | (0 << 8) | 0;
         int pos = i + j * writeableBitmap.PixelWidth;
         pixels[pos] = color_data;
      }
   }

   Array.Copy(pixels, writeableBitmap.Pixels, stride);

   viewer.UpdateImageFromSource();
}

Public Sub ImageViewer_UpdateImageFromSource(ByVal viewer As RasterImageViewer)
   Dim codecs As RasterCodecs = New RasterCodecs()
   Dim image As RasterImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path & "cannon.jpg")
   'Convert to Bgr32a
   Dim cmd As ColorResolutionCommand = New ColorResolutionCommand(ColorResolutionCommandMode.InPlace, 32, RasterByteOrder.Bgr, RasterDitheringMethod.None, ColorResolutionCommandPaletteFlags.None, Nothing)
   cmd.Run(image)

   Dim stream As Stream = New MemoryStream()
   codecs.Save(image, stream, RasterImageFormat.Bmp, image.BitsPerPixel)
   Dim imgSource As BitmapImage = New BitmapImage()
   imgSource.SetSource(stream)
   viewer.Source = imgSource

   Dim writeableBitmap As WriteableBitmap = TryCast(viewer.Source, WriteableBitmap)

   Dim pixels As Integer() = New Integer(writeableBitmap.PixelWidth * writeableBitmap.PixelHeight - 1) {}
   Dim stride As Integer = writeableBitmap.PixelWidth * 4

   Array.Copy(writeableBitmap.Pixels, pixels, stride)

   ' Fill the bitmap with Red.
   Dim i As Integer = 0
   Do While i < writeableBitmap.PixelWidth
      Dim j As Integer = 0
      Do While j < writeableBitmap.PixelHeight
         Dim color_data As Integer = (255 << 24) Or (0 << 16) Or (0 << 8) Or 0
         Dim pos As Integer = i + j * writeableBitmap.PixelWidth
         pixels(pos) = color_data
         j += 1
      Loop
      i += 1
   Loop

   Array.Copy(pixels, writeableBitmap.Pixels, stride)

   viewer.UpdateImageFromSource()
End Sub