Begin Method

using Leadtools.Windows.Media.Transitions; 
using Leadtools.Windows.Controls; 
 
 
public void PushTransition_PushTransition(ImageViewer viewer) 
{ 
   PushTransition pushTransition = new PushTransition(); 
   pushTransition.TransitionType = PushTransitionType.TopToBottom; 
 
   pushTransition.AutoReverse = true; 
   pushTransition.Fill = new ImageBrush(new BitmapImage(new Uri(System.IO.Path.Combine(LEAD_VARS.ImagesDir, "image2.jpg")))); 
   pushTransition.Duration = new Duration(TimeSpan.FromSeconds(1)); 
   pushTransition.FillBehavior = System.Windows.Media.Animation.FillBehavior.HoldEnd; 
   pushTransition.Grain = 10; 
   pushTransition.Push = new DrawingBrush(new ImageDrawing(new BitmapImage(new Uri(System.IO.Path.Combine(LEAD_VARS.ImagesDir, "image1.jpg"))), new Rect(0, 0, viewer.Source.Width, viewer.Source.Height))); 
 
   viewer.Transition = pushTransition; 
 
   // Begin the transition 
   pushTransition.Begin(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}