Overloads Public Function GetRowColumnCompressed( _
   ByVal workBuffer As IntPtr, _
   ByVal runBuffer As IntPtr, _
   ByVal row As Integer, _
   ByVal column As Integer, _
   ByVal width As Integer _
) As Integer

Dim instance As RasterImage
Dim workBuffer As IntPtr
Dim runBuffer As IntPtr
Dim row As Integer
Dim column As Integer
Dim width As Integer
Dim value As Integer
 
value = instance.GetRowColumnCompressed(workBuffer, runBuffer, row, column, width)

public int GetRowColumnCompressed( 
   IntPtr workBuffer,
   IntPtr runBuffer,
   int row,
   int column,
   int width
)

public:
int GetRowColumnCompressed( 
   IntPtr workBuffer,
   IntPtr runBuffer,
   int row,
   int column,
   int width
) 

Public Sub GetRowColumnCompressedExample()
      Dim codecs As RasterCodecs = New RasterCodecs()
      ' Load the bitmap, at 1 bit per pixel, compressed
      codecs.Options.Load.Compressed = True
      Dim image As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "OCR1.TIF"), 1, CodecsLoadByteOrder.Bgr, 1, 1)

      Dim xOffset As Integer ' Column offset of the rectangle to process.
      Dim xSize As Integer ' Pixel width of the rectangle to process.
      Dim yOffset As Integer ' Row offset of the rectangle to process.
      Dim ySize As Integer ' Pixel height of the rectangle to process.
      Dim i, n As Integer ' Counters.

      Dim buffer As Byte() ' Buffer to hold the expanded row.
      Dim runBuffer As System.UInt16() ' Buffer to hold the compressed row.
      Dim workBuffer As Byte() ' Work buffer.

      ' This example does not work with rotated view perspectives.
      If (image.ViewPerspective <> RasterViewPerspective.TopLeft) OrElse (image.ViewPerspective <> RasterViewPerspective.BottomLeft) Then
         image.ChangeViewPerspective(RasterViewPerspective.TopLeft)
      End If

      ' Specify a rectangle in the middle right part of the displayed image.
      xOffset = image.Width \ 3
      xSize = image.Width - xOffset
      yOffset = image.Height \ 3
      ySize = image.Height \ 3
      ' Adjust the YOffset if the view perspective is bottom left.
      If image.ViewPerspective = RasterViewPerspective.BottomLeft Then
         yOffset = image.Height - yOffset - ySize
      End If

      If image.IsGlobalMemory Then
         image.Access()
      End If
      ' Allocate the buffers.
      buffer = New Byte((xSize + 7) \ 8 - 1) {}
      runBuffer = New System.UInt16((xSize + 3) * 2 - 1) {}
      workBuffer = New Byte(image.BytesPerLine - 1) {}
      ' Invert the colors of pixels in the left half of the rectangle.
      ' Notice that we get the whole rectangle, but process only half of it.
      i = yOffset
      Do While i < (yOffset + ySize)
         image.GetRowColumnCompressed(workBuffer, runBuffer, 0, i, xOffset, xSize)
         RasterRleCompressor.ExpandRow(runBuffer, buffer, 0, 0, xSize)
         n = 0
         Do While n < (xSize / 16)
            buffer(n) = buffer(n) Xor Convert.ToByte(&HFF)
            n += 1
         Loop
         RasterRleCompressor.CompressRow(runBuffer, buffer, 0, 0, xSize)
         image.SetRowColumnCompressed(workBuffer, runBuffer, 0, i, xOffset, xSize)

         i += 1
      Loop
      If image.IsGlobalMemory Then
         image.Release()
      End If

      codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1_getrowcolcompresed.BMP"), RasterImageFormat.Bmp, 0)

      image.Dispose()
      codecs.Dispose()
   End Sub

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

public void GetRowColumnCompressedExample()
   {
      RasterCodecs codecs = new RasterCodecs();
      // Load the bitmap, at 1 bit per pixel, compressed
      codecs.Options.Load.Compressed = true;
      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "OCR1.TIF"), 1, Leadtools.Codecs.CodecsLoadByteOrder.Bgr, 1, 1);

      int xOffset;   // Column offset of the rectangle to process.
      int xSize;     // Pixel width of the rectangle to process.
      int yOffset;   // Row offset of the rectangle to process.
      int ySize;     // Pixel height of the rectangle to process.
      int i, n;       // Counters.

      byte[] buffer;      // Buffer to hold the expanded row.
      ushort[] runBuffer; // Buffer to hold the compressed row.
      byte[] workBuffer;  // Work buffer.

      // This example does not work with rotated view perspectives.
      if((image.ViewPerspective != RasterViewPerspective.TopLeft) || (image.ViewPerspective != RasterViewPerspective.BottomLeft))
         image.ChangeViewPerspective(RasterViewPerspective.TopLeft);

      // Specify a rectangle in the middle right part of the displayed image.
      xOffset = image.Width / 3;
      xSize = image.Width - xOffset;
      yOffset = image.Height / 3;
      ySize = image.Height / 3;
      // Adjust the YOffset if the view perspective is bottom left.
      if(image.ViewPerspective == RasterViewPerspective.BottomLeft)
      {
         yOffset = image.Height - yOffset - ySize;
      }

      if(image.IsGlobalMemory)
         image.Access();
      // Allocate the buffers.
      buffer = new Byte[(xSize + 7) / 8];
      runBuffer = new ushort[(xSize + 3) * 2];
      workBuffer = new Byte[image.BytesPerLine];
      // Invert the colors of pixels in the left half of the rectangle.
      // Notice that we get the whole rectangle, but process only half of it.
      for(i = yOffset; i < (yOffset + ySize); i++)
      {
         image.GetRowColumnCompressed(workBuffer, runBuffer, 0, i, xOffset, xSize);
         RasterRleCompressor.ExpandRow(runBuffer, buffer, 0, 0, xSize);
         for(n = 0; n < (xSize / 16); n++)
            buffer[n] ^= 0xFF;
         RasterRleCompressor.CompressRow(runBuffer, buffer, 0, 0, xSize);
         image.SetRowColumnCompressed(workBuffer, runBuffer, 0, i, xOffset, xSize);

      }
      if(image.IsGlobalMemory)
         image.Release();

      codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1_getrowcolcompresed.BMP"), RasterImageFormat.Bmp, 0);

      image.Dispose();
      codecs.Dispose();
   }

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