Public Class RasterRegion 
   Implements IDisposable 

Dim instance As RasterRegion

public class RasterRegion : IDisposable  

public ref class RasterRegion : public IDisposable  

Public Sub RasterRegionExample()
      Dim codecs As New RasterCodecs()

      Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
      Dim destFileName1 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WithRegion1.bmp")
      Dim destFileName2 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WithRegion2.bmp")

      ' Load the source image
      Using image As RasterImage = codecs.Load(srcFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1)
         ' Create a new rectangular RasterRegion
         Using region As New RasterRegion(New LeadRect(20, 30, 100, 200))
            ' Show this region properties
            Console.WriteLine("IsEmpty: {0}\nBounds: {1}", region.IsEmpty, region.GetBounds())

            ' Set it into the image
            image.SetRegion(Nothing, region, RasterRegionCombineMode.Set)

            ' Fill the image with a color and save it to disk to show the region
            Dim cmd As New FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow))
            cmd.Run(image)

            codecs.Save(image, destFileName1, RasterImageFormat.Bmp, 24)

            ' Clear this region
            region.MakeEmpty()

            ' Show its properties
            Console.WriteLine("IsEmpty: {0}\nBounds: {1}", region.IsEmpty, region.GetBounds())

            ' Set it into the image and fill again with red, notice
            ' that this will fill the whole image since
            ' the region is now empty
            image.SetRegion(Nothing, region, RasterRegionCombineMode.Set)

            cmd = New FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Red))
            cmd.Run(image)

            codecs.Save(image, destFileName2, RasterImageFormat.Bmp, 24)
         End Using
      End Using

      codecs.Dispose()
   End Sub

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

public void RasterRegionExample()
   {
      RasterCodecs codecs = new RasterCodecs();

      string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
      string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WithRegion1.bmp");
      string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WithRegion2.bmp");

      // Load the source image
      using(RasterImage image = codecs.Load(srcFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1))
      {
         // Create a new rectangular RasterRegion
         using(RasterRegion region = new RasterRegion(new LeadRect(20, 30, 100, 200)))
         {
            // Show this region properties
            Console.WriteLine("IsEmpty: {0}\nBounds: {1}", region.IsEmpty, region.GetBounds());

            // Set it into the image
            image.SetRegion(null, region, RasterRegionCombineMode.Set);

            // Fill the image with a color and save it to disk to show the region
            FillCommand cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow));
            cmd.Run(image);

            codecs.Save(image, destFileName1, RasterImageFormat.Bmp, 24);

            // Clear this region
            region.MakeEmpty();

            // Show its properties
            Console.WriteLine("IsEmpty: {0}\nBounds: {1}", region.IsEmpty, region.GetBounds());

            // Set it into the image and fill again with red, notice
            // that this will fill the whole image since
            // the region is now empty
            image.SetRegion(null, region, RasterRegionCombineMode.Set);

            cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Red));
            cmd.Run(image);

            codecs.Save(image, destFileName2, RasterImageFormat.Bmp, 24);
         }
      }

      codecs.Dispose();
   }

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