Touch Move events not working for child when Touch Move event of parent is working

When Moving touch on Window Touch Move of Window is called but when touch move reaches Child (Ellipse)

Touch Move event is not fired But I atleast I want to identify if the Touch is on Ellipse or not. as it it works on mouse move

This is my Xaml code

<Window x:Class="TouchEvent.MainWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         Title="MainWindow" Height="350" Width="525" IsManipulationEnabled="True" TouchMove="Window_TouchMove"><Canvas Name="MainCanvas" Height="350" Width="525" Background="Gray" ><!-- 
        The ellipse that will be dragged around. 
         The Top and Left attributes must be set 
         or Canvas.GetTop and Canvas.GetLeft will return NaN. 
         --><Ellipse IsManipulationEnabled="True" 
             Name="DragEllipse" 
             Canvas.Top="0" Canvas.Left="0" 
             Fill="Red" 
             Width="100" Height="100" 
             TouchDown="DragEllipse_TouchDown"
             TouchMove="DragEllipse_TouchMove"
             TouchLeave="DragEllipse_TouchLeave"></Ellipse></Canvas></Window>

This is my .CS Code

// Declare the global variables.
TouchDevice ellipseControlTouchDevice;
Point lastPoint;

private void DragEllipse_TouchDown(object sender, TouchEventArgs e)
{
             // Capture to the ellipse.  
             e.TouchDevice.Capture(this.DragEllipse);

             // Remember this contact if a contact has not been remembered already.  
             // This contact is then used to move the ellipse around.
             if (ellipseControlTouchDevice == null)
             {
                 ellipseControlTouchDevice = e.TouchDevice;

                 // Remember where this contact took place.  
                 lastPoint = ellipseControlTouchDevice.GetTouchPoint(this.MainCanvas).Position;
             }

             // Mark this event as handled.  
             e.Handled = true;
}

private void DragEllipse_TouchMove(object sender, TouchEventArgs e)
{
             if (e.TouchDevice == ellipseControlTouchDevice)
             {
                 // Get the current position of the contact.  
                 Point currentTouchPoint = ellipseControlTouchDevice.GetTouchPoint(this.MainCanvas).Position;

                 // Get the change between the controlling contact point and
                 // the changed contact point.  
                 double deltaX = currentTouchPoint.X - lastPoint.X;
                 double deltaY = currentTouchPoint.Y - lastPoint.Y;

                 // Get and then set a new top position and a new left position for the ellipse.  
                 double newTop = Canvas.GetTop(this.DragEllipse) + deltaY;
                 double newLeft = Canvas.GetLeft(this.DragEllipse) + deltaX;

                 Canvas.SetTop(this.DragEllipse, newTop);
                 Canvas.SetLeft(this.DragEllipse, newLeft);

                 // Forget the old contact point, and remember the new contact point.  
                 lastPoint = currentTouchPoint;

                 // Mark this event as handled.  
                 e.Handled = true;
             }
}

private void DragEllipse_TouchLeave(object sender, TouchEventArgs e)
{
             // If this contact is the one that was remembered  
             if (e.TouchDevice == ellipseControlTouchDevice)
             {
                 // Forget about this contact.
                 ellipseControlTouchDevice = null;
             }

             // Mark this event as handled.  
             e.Handled = true;
}

private void Window_TouchMove(object sender, TouchEventArgs e)
{
             if (e.Source.GetType() != typeof(TouchEvent.MainWindow))
             {

             }
         }


     }
}