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InteractiveMode Property

Summary

Gets or sets a value that indicates the current user interaction mode with the control's display. This is a dependency property.

Syntax

C++

public Leadtools.Windows.Controls.InteractiveMode InteractiveMode {get; set;}

Public Property InteractiveMode As Leadtools.Windows.Controls.InteractiveMode

public: 
property Leadtools.Windows.Controls.InteractiveMode InteractiveMode { 
   Leadtools.Windows.Controls.InteractiveMode get(); 
   void set (    Leadtools.Windows.Controls.InteractiveMode ); 
}

Property Value

An InteractiveMode enumeration member that indicates the current user interaction mode with the control's display. Default value is InteractiveMode.None.

Remarks

You can change the mouse cursor associated with a particular interactive mode with the SetInteractiveModeCursor method. For descriptions of the various interactive mode available, refer to InteractiveMode.

Example

This example changes between interactive modes -- from none, to pan, to magnifying glass and back to none.

Silverlight C#

Silverlight VB

Imports Leadtools.Windows.Controls 
 
Private Sub viewer_InteractiveModeChanged(ByVal sender As Object, ByVal e As RoutedEventArgs) 
    Dim viewer As ImageViewer = TryCast(sender, ImageViewer) 
    Dim s As String = String.Format("InteractiveMode changed to: {0}", viewer.InteractiveMode.ToString()) 
    MessageBox.Show(s) 
End Sub 
Public Sub BitmapSourceViewer_InteractiveMode(ByVal viewer As ImageViewer) 
    AddHandler viewer.InteractiveModeChanged, AddressOf viewer_InteractiveModeChanged 
    AddHandler viewer.InteractivePan, AddressOf viewer_InteractivePan 
 
    Select Case viewer.InteractiveMode 
        Case InteractiveMode.None 
            viewer.InteractiveMode = InteractiveMode.Pan 
 
        Case InteractiveMode.Pan 
            viewer.InteractiveMode = InteractiveMode.MagnifyGlass 
 
        Case InteractiveMode.MagnifyGlass 
            viewer.InteractiveMode = InteractiveMode.ZoomTo 
 
        Case InteractiveMode.ZoomTo 
            viewer.InteractiveMode = InteractiveMode.None 
    End Select 
 
    RemoveHandler viewer.InteractiveModeChanged, AddressOf viewer_InteractiveModeChanged 
End Sub

using Leadtools.Help; 
using Leadtools.Windows.Controls; 
 
private void viewer_InteractiveModeChanged(object sender, RoutedEventArgs e) 
{ 
   ImageViewer viewer = sender as ImageViewer; 
   string s = string.Format("InteractiveMode changed to: {0}", viewer.InteractiveMode.ToString()); 
   MessageBox.Show(s); 
} 
public void BitmapSourceViewer_InteractiveMode(ImageViewer viewer) 
{ 
   viewer.InteractiveModeChanged += new RoutedPropertyChangedEventHandler<InteractiveMode>(viewer_InteractiveModeChanged); 
   viewer.InteractivePan +=new EventHandler<LineInteractiveEventArgs>(viewer_InteractivePan); 
 
   switch(viewer.InteractiveMode) 
   { 
      case InteractiveMode.None: 
         viewer.InteractiveMode = InteractiveMode.Pan; 
         break; 
 
      case InteractiveMode.Pan: 
         viewer.InteractiveMode = InteractiveMode.MagnifyGlass; 
         break; 
 
      case InteractiveMode.MagnifyGlass: 
         viewer.InteractiveMode = InteractiveMode.ZoomTo; 
         break; 
 
      case InteractiveMode.ZoomTo: 
         viewer.InteractiveMode = InteractiveMode.None; 
         break; 
   } 
 
   viewer.InteractiveModeChanged -= new RoutedPropertyChangedEventHandler<InteractiveMode>(viewer_InteractiveModeChanged); 
}

using Leadtools.Help; 
using Leadtools.Windows.Controls; 
 
private void viewer_InteractiveModeChanged(object sender, RoutedEventArgs e) 
{ 
   ImageViewer viewer = sender as ImageViewer; 
   string s = string.Format("InteractiveMode changed to: {0}", viewer.InteractiveMode.ToString()); 
   MessageBox.Show(s); 
} 
public void BitmapSourceViewer_InteractiveMode(ImageViewer viewer) 
{ 
   viewer.InteractiveModeChanged += new RoutedPropertyChangedEventHandler<InteractiveMode>(viewer_InteractiveModeChanged); 
   viewer.InteractivePan +=new EventHandler<LineInteractiveEventArgs>(viewer_InteractivePan); 
 
   switch(viewer.InteractiveMode) 
   { 
      case InteractiveMode.None: 
         viewer.InteractiveMode = InteractiveMode.Pan; 
         break; 
 
      case InteractiveMode.Pan: 
         viewer.InteractiveMode = InteractiveMode.MagnifyGlass; 
         break; 
 
      case InteractiveMode.MagnifyGlass: 
         viewer.InteractiveMode = InteractiveMode.ZoomTo; 
         break; 
 
      case InteractiveMode.ZoomTo: 
         viewer.InteractiveMode = InteractiveMode.None; 
         break; 
   } 
 
   viewer.InteractiveModeChanged -= new RoutedPropertyChangedEventHandler<InteractiveMode>(viewer_InteractiveModeChanged); 
}

Imports Leadtools 
Imports Leadtools.Windows.Controls 
 
Private Sub viewer_InteractiveModeChanged(ByVal sender As Object, ByVal e As RoutedEventArgs) 
   Dim viewer As ImageViewer = TryCast(sender, ImageViewer) 
   Dim s As String = String.Format("InteractiveMode changed to: {0}", viewer.InteractiveMode.ToString()) 
   MessageBox.Show(s) 
End Sub 
Public Sub BitmapSourceViewer_InteractiveMode(ByVal viewer As ImageViewer) 
   AddHandler viewer.InteractiveModeChanged, AddressOf viewer_InteractiveModeChanged 
   AddHandler viewer.InteractivePan, AddressOf viewer_InteractivePan 
 
   Select Case viewer.InteractiveMode 
      Case InteractiveMode.None 
         viewer.InteractiveMode = InteractiveMode.Pan 
 
      Case InteractiveMode.Pan 
         viewer.InteractiveMode = InteractiveMode.MagnifyGlass 
 
      Case InteractiveMode.MagnifyGlass 
         viewer.InteractiveMode = InteractiveMode.ZoomTo 
 
      Case InteractiveMode.ZoomTo 
         viewer.InteractiveMode = InteractiveMode.None 
   End Select 
 
   RemoveHandler viewer.InteractiveModeChanged, AddressOf viewer_InteractiveModeChanged 
End Sub

<Window x:Class="WPFSamples.ImageViewer" 
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
  xmlns:Leadtools_Windows_Controls="clr-namespace:Leadtools.Windows.Controls;assembly=Leadtools.Windows.Controls" 
  Height="600" Width="800" Title="InteractiveMode Sample"> 
  <DockPanel> 
    <Leadtools_Windows_Controls:ImageViewer 
      Name="theViewer" 
      Source="file:///c:\users\Public\Documents\LEADTOOLS Images\cannon.jpg" 
      DockPanel.Dock= "Bottom" 
      HorizontalAlignment="Center" VerticalAlignment="Center" 
      InteractiveMode="Scale" 
      InteractiveModeChanged ="theViewer_InteractiveModeChanged"/> 
  </DockPanel> 
</Window>