Overloads Public Sub Combine( _
   ByVal rect As LeadRect, _
   ByVal combineMode As RasterRegionCombineMode _
) 

Dim instance As RasterRegion
Dim rect As LeadRect
Dim combineMode As RasterRegionCombineMode
 
instance.Combine(rect, combineMode)

public void Combine( 
   LeadRect rect,
   RasterRegionCombineMode combineMode
)

public:
void Combine( 
   LeadRect rect,
   RasterRegionCombineMode combineMode
) 

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

      Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
      Dim destFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_CombineRect.bmp")

      ' Load the source image
      Using image As RasterImage = codecs.Load(srcFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1)
         ' Add a small elliptical region
         image.AddEllipseToRegion(Nothing, New LeadRect(0, 0, image.ImageWidth \ 3, image.ImageHeight \ 3), RasterRegionCombineMode.Set)

         ' Get this region
         Dim region As RasterRegion = image.GetRegion(Nothing)
         image.MakeRegionEmpty()

         ' Create a rectangle that fits in this region area
         Dim rc As New LeadRect(0, 0, image.ImageWidth \ 4, image.ImageHeight \ 4)

         ' Combine the region to contain only the difference between the it and the rectangle
         region.Combine(rc, RasterRegionCombineMode.Xor)

         ' Set this region to the image and fill it with yellow
         image.SetRegion(Nothing, region, RasterRegionCombineMode.Set)

         Dim cmd As New FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow))
         cmd.Run(image)

         codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24)
      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 RasterRegionCombineRectExample()
   {
      RasterCodecs codecs = new RasterCodecs();

      string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
      string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_CombineRect.bmp");

      // Load the source image
      using(RasterImage image = codecs.Load(srcFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1))
      {
         // Add a small elliptical region
         image.AddEllipseToRegion(null, new LeadRect(0, 0, image.ImageWidth / 3, image.ImageHeight / 3), RasterRegionCombineMode.Set);

         // Get this region
         RasterRegion region = image.GetRegion(null);
         image.MakeRegionEmpty();

         // Create a rectangle that fits in this region area
         LeadRect rc = new LeadRect(0, 0, image.ImageWidth / 4, image.ImageHeight / 4);

         // Combine the region to contain only the difference between the it and the rectangle
         region.Combine(rc, RasterRegionCombineMode.Xor);

         // Set this region to the image and fill it with yellow
         image.SetRegion(null, region, RasterRegionCombineMode.Set);

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

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

      codecs.Dispose();
   }

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