ImageViewer Property

using Leadtools; 
using Leadtools.Controls; 
using Leadtools.Document; 
using Leadtools.Document.Viewer; 
using Leadtools.Codecs; 
using Leadtools.Caching; 
using Leadtools.Annotations.Engine; 
using Leadtools.Ocr; 
 
 
// Disable the example button, this should only run once 
exampleButton.Enabled = false; 
 
// Get the view 
var view = _documentViewer.View; 
// Get its image viewer 
var imageViewer = view.ImageViewer; 
// Hook to the PostRender 
imageViewer.PostRenderItem += (sender, e) => 
{ 
   // Get the image viewer item for the page 
   var item = e.Item; 
 
   // Get the current rectangle for the image 
   var bounds = imageViewer.GetItemViewBounds(item, ImageViewerItemPart.Image, false); 
 
   // Build the text we want. The page number is the item index + 1 
   var pageNumber = imageViewer.Items.IndexOf(item) + 1; 
   var text = "Page " + pageNumber.ToString(); 
 
   // Get the image transformation for this item 
   var transform = imageViewer.GetItemImageTransform(e.Item); 
 
   // Apply it to the context 
   var gstate = e.Context.Save(); 
   using (var matrix = new System.Drawing.Drawing2D.Matrix( 
      (float)transform.M11, 
      (float)transform.M12, 
      (float)transform.M21, 
      (float)transform.M22, 
      (float)transform.OffsetX, 
      (float)transform.OffsetY)) 
   { 
      e.Context.MultiplyTransform(matrix); 
   } 
 
   // Render the text at the bottom of the bounds 
   var flags = TextFormatFlags.HorizontalCenter | TextFormatFlags.Bottom; 
   var rc = new Rectangle((int)bounds.X, (int)bounds.Y, (int)bounds.Width, (int)bounds.Height); 
   TextRenderer.DrawText(e.Context, text, imageViewer.Font, rc, Color.White, Color.Black, flags); 
 
   e.Context.Restore(gstate); 
}; 
 
// Invalidate so our changes take effect the first time 
view.Invalidate();