AddRegionToRegion(RasterImage,RasterRegionXForm,Region,RasterRegionCombineMode) Method

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Drawing; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
 
public void AddRegionToRegionGdip_Example() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); 
   string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_ConvertToRegion.bmp"); 
   string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_AddRegionToRegion.bmp"); 
 
   // Load the image 
   RasterImage image = codecs.Load(srcFileName); 
 
   // Add an ellipse inside a rectangle region to the image 
 
   LeadRect rc = new LeadRect(image.Width / 3, image.Height / 3, image.Width / 3, image.Height / 3); 
   image.AddEllipseToRegion(null, rc, RasterRegionCombineMode.Set); 
 
   // Create a GDI+ image from this raster image, then obtain a Graphics 
   // object to the GDI+ image, apply the region to it then fill it with red color 
   Region region; 
 
   using (Image gdiPlusImage = RasterImageConverter.ConvertToImage(image, ConvertToImageOptions.None)) 
   { 
      using (Graphics graphics = Graphics.FromImage(gdiPlusImage)) 
      { 
         using (RasterRegion rasterRegion = image.GetRegion(null)) 
         { 
            region = RasterRegionConverter.ConvertToRegion(rasterRegion, null); 
            graphics.Clip = region; 
 
            // This call should only fill the ellipse 
            graphics.FillRectangle(Brushes.Red, 0, 0, image.Width, image.Height); 
         } 
      } 
 
      gdiPlusImage.Save(destFileName1, ImageFormat.Bmp); 
   } 
 
   // Empty the region in the raster image and re-add it through the 
   // region object we got with AddRegionToRegion 
   image.MakeRegionEmpty(); 
 
   RasterRegionConverter.AddRegionToRegion(image, null, region, RasterRegionCombineMode.Set); 
   FillCommand command = new FillCommand(); 
   command.Color = RasterColor.FromKnownColor(RasterKnownColor.Red); 
   command.Run(image); 
   codecs.Save(image, destFileName2, RasterImageFormat.Bmp, 24); 
 
   region.Dispose(); 
   image.Dispose(); 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
}