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LEADTOOLS WPF and Silverlight (Leadtools.Windows.Controls assembly)
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InteractiveMagnifyGlass Event






Leadtools.Windows.Controls Namespace > ImageViewer Class : InteractiveMagnifyGlass Event
Occurs when the user is using the MagnifyGlass on this control.
Syntax
public event EventHandler<LineInteractiveEventArgs> InteractiveMagnifyGlass
'Declaration
 
Public Event InteractiveMagnifyGlass As EventHandler(Of LineInteractiveEventArgs)
'Usage
 
Dim instance As ImageViewer
Dim handler As EventHandler(Of LineInteractiveEventArgs)
 
AddHandler instance.InteractiveMagnifyGlass, handler

            

        

            

            

            

        

            

            
public:
event EventHandler<LineInteractiveEventArgs^>^ InteractiveMagnifyGlass

            

        

            

        

            
Event Data
The event handler receives an argument of type LineInteractiveEventArgs containing data related to this event. The following LineInteractiveEventArgs properties provide information specific to this event.
PropertyDescription
Begin Gets the begin location for the current interactive line mode. 
Cancel (Inherited from Leadtools.Windows.Controls.InteractiveEventArgs)Gets or sets a value indicating whether the interactive mode should be canceled. 
End Gets the end location for the current interactive line mode. 
Handled (Inherited from System.Windows.RoutedEventArgs) 
OriginalSource (Inherited from System.Windows.RoutedEventArgs) 
RoutedEvent (Inherited from System.Windows.RoutedEventArgs) 
Source (Inherited from System.Windows.RoutedEventArgs) 
Status (Inherited from Leadtools.Windows.Controls.InteractiveEventArgs)Gets the current status of the interactive mode. 

            
Remarks
Only occurs when the InteractiveMode property is set to InteractiveMode.MagnifyGlass.

      
            
Example



This sample lets you drag the mouse to magnify parts of the image. Also, it displays the contents of the InteractiveMagnifyGlass event in the console.



             
    

            
            

            Copy Code
                
            

            

    

     

            
Imports Leadtools.Windows.Controls

Private Sub viewer_InteractiveMagnifyGlass(ByVal sender As Object, ByVal e As LineInteractiveEventArgs)
    Dim ImageViewer As ImageViewer = TryCast(sender, ImageViewer)
    Console.WriteLine("InteractiveMagnifyGlass: e.Begin {0}, e.End{1}, e.Status {2}, e.Cancel {3}", e.Begin, e.End, e.Status, e.Cancel)
End Sub

Public Sub BitmapSourceViewer_InteractiveMagnifyGlass(ByVal viewer As ImageViewer)
    viewer.SetInteractiveModeCursor(InteractiveMode.MagnifyGlass, Cursors.Arrow, Cursors.None)
    viewer.InteractiveMode = InteractiveMode.MagnifyGlass
    AddHandler viewer.InteractiveMagnifyGlass, AddressOf viewer_InteractiveMagnifyGlass

    ' Drag mouse across image to see the magnifying glass
    ' After you are done, you must remove the event handler as in below
    '
    ' viewer.InteractiveMagnifyGlass -= new ImageViewer.InteractiveMagnifyGlassEventHandler(viewer_InteractiveMagnifyGlass);
End Sub

            

   

     

            
using Leadtools.Help;
using Leadtools.Windows.Controls;

private void viewer_InteractiveMagnifyGlass(object sender, LineInteractiveEventArgs e)
{
   ImageViewer ImageViewer = sender as ImageViewer;
   Console.WriteLine("InteractiveMagnifyGlass: e.Begin {0}, e.End{1}, e.Status {2}, e.Cancel {3}", e.Begin, e.End, e.Status, e.Cancel);
}

public void BitmapSourceViewer_InteractiveMagnifyGlass(ImageViewer viewer)
{
   viewer.SetInteractiveModeCursor(InteractiveMode.MagnifyGlass, Cursors.Arrow, Cursors.None);
   viewer.InteractiveMode = InteractiveMode.MagnifyGlass;
   viewer.InteractiveMagnifyGlass +=new EventHandler<LineInteractiveEventArgs>(viewer_InteractiveMagnifyGlass);

   // Drag mouse across image to see the magnifying glass
   // After you are done, you must remove the event handler as in below
   //
   // viewer.InteractiveMagnifyGlass -= new ImageViewer.InteractiveMagnifyGlassEventHandler(viewer_InteractiveMagnifyGlass);
}

            

   

     

            
using Leadtools.Help;
using Leadtools.Windows.Controls;

private void viewer_InteractiveMagnifyGlass(object sender, LineInteractiveEventArgs e)
{
   ImageViewer ImageViewer = sender as ImageViewer;
   Console.WriteLine("InteractiveMagnifyGlass: e.Begin {0}, e.End{1}, e.Status {2}, e.Cancel {3}", e.Begin, e.End, e.Status, e.Cancel);
}

public void BitmapSourceViewer_InteractiveMagnifyGlass(ImageViewer viewer)
{
   viewer.SetInteractiveModeCursor(InteractiveMode.MagnifyGlass, Cursors.Arrow, Cursors.None);
   viewer.InteractiveMode = InteractiveMode.MagnifyGlass;
   viewer.InteractiveMagnifyGlass +=new EventHandler<LineInteractiveEventArgs>(viewer_InteractiveMagnifyGlass);

   // Drag mouse across image to see the magnifying glass
   // After you are done, you must remove the event handler as in below
   //
   // viewer.InteractiveMagnifyGlass -= new ImageViewer.InteractiveMagnifyGlassEventHandler(viewer_InteractiveMagnifyGlass);
}

            

   

     

            
Imports Leadtools
Imports Leadtools.Windows.Controls

Private Sub viewer_InteractiveMagnifyGlass(ByVal sender As Object, ByVal e As LineInteractiveEventArgs)
   Dim ImageViewer As ImageViewer = TryCast(sender, ImageViewer)
   Console.WriteLine("InteractiveMagnifyGlass: e.Begin {0}, e.End{1}, e.Status {2}, e.Cancel {3}", e.Begin, e.End, e.Status, e.Cancel)
End Sub

Public Sub BitmapSourceViewer_InteractiveMagnifyGlass(ByVal viewer As ImageViewer)
   viewer.SetInteractiveModeCursor(InteractiveMode.MagnifyGlass, Cursors.Arrow, Cursors.None)
   viewer.InteractiveMode = InteractiveMode.MagnifyGlass
   AddHandler viewer.InteractiveMagnifyGlass, AddressOf viewer_InteractiveMagnifyGlass

   ' Drag mouse across image to see the magnifying glass
   ' After you are done, you must remove the event handler as in below
   '
   ' viewer.InteractiveMagnifyGlass -= new ImageViewer.InteractiveMagnifyGlassEventHandler(viewer_InteractiveMagnifyGlass);
End Sub

            

   

      
	
      
	
    

            
            
Requirements
Target Platforms

            
            
See Also
Reference
ImageViewer Class

ImageViewer Members




        
    

	
    

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