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InteractiveMagnifyGlass Event

Summary

Occurs when the user is using the MagnifyGlass on this control.

Syntax

C++

public event EventHandler<LineInteractiveEventArgs> InteractiveMagnifyGlass

  
Public Event InteractiveMagnifyGlass As EventHandler(Of LineInteractiveEventArgs)

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.

Property	Description
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.

Silverlight C#

Silverlight VB

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.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); 
}

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

Reference

ImageViewer Class

ImageViewer Members

Help Version 19.0.2017.10.27

Leadtools.Windows.Controls Assembly

Introduction

Getting Started

Namespaces

Leadtools.Windows.Controls Namespace

Assemblies