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InteractiveMode Property
See Also  Example
Leadtools.Windows.Controls Namespace > BitmapSourceViewer Class : InteractiveMode Property





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

Syntax

Visual Basic (Declaration) 
Public Property InteractiveMode As BitmapSourceViewerInteractiveMode
Visual Basic (Usage)Copy Code
Dim instance As BitmapSourceViewer
Dim value As BitmapSourceViewerInteractiveMode
 
instance.InteractiveMode = value
 
value = instance.InteractiveMode
C# 
public BitmapSourceViewerInteractiveMode InteractiveMode {get; set;}
C++/CLI 
public:
property BitmapSourceViewerInteractiveMode InteractiveMode {
   BitmapSourceViewerInteractiveMode get();
   void set (BitmapSourceViewerInteractiveMode value);
}
XAML Attributes Usage 

<object InteractiveMode=Leadtools.Windows.Controls.BitmapSourceViewerInteractiveMode .../>

Dependencies Property Information 

Identifier field

InteractiveModeProperty

Metadata properties set to true

None

XAML Attributes Usage 

<object InteractiveMode=Leadtools.Windows.Controls.BitmapSourceViewerInteractiveMode .../>

Dependencies Property Information 

Identifier field

InteractiveModeProperty

Metadata properties set to true

None

Return Value

Value which controls the user interaction with the control's display.

Example

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

Visual BasicCopy Code
Private Sub viewer_InteractiveModeChanged(ByVal sender As Object, ByVal e As RoutedPropertyChangedEventArgs(Of BitmapSourceViewerInteractiveMode))
    Dim viewer As BitmapSourceViewer = CType(IIf(TypeOf sender Is BitmapSourceViewer, sender, Nothing), BitmapSourceViewer)
    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 BitmapSourceViewer)
    AddHandler viewer.InteractiveModeChanged, AddressOf viewer_InteractiveModeChanged
    AddHandler viewer.InteractivePan, AddressOf viewer_InteractivePan

    Select Case viewer.InteractiveMode
        Case BitmapSourceViewerInteractiveMode.None
            viewer.InteractiveMode = BitmapSourceViewerInteractiveMode.Pan

        Case BitmapSourceViewerInteractiveMode.Pan
            viewer.InteractiveMode = BitmapSourceViewerInteractiveMode.MagnifyGlass

        Case BitmapSourceViewerInteractiveMode.MagnifyGlass
            viewer.InteractiveMode = BitmapSourceViewerInteractiveMode.Geometry

        Case BitmapSourceViewerInteractiveMode.Geometry
            viewer.InteractiveMode = BitmapSourceViewerInteractiveMode.ZoomTo

        Case BitmapSourceViewerInteractiveMode.ZoomTo
            viewer.InteractiveMode = BitmapSourceViewerInteractiveMode.None

    End Select

    RemoveHandler viewer.InteractiveModeChanged, AddressOf viewer_InteractiveModeChanged
End Sub
C#Copy Code
private void viewer_InteractiveModeChanged(object sender, RoutedEventArgs e) 
{ 
   BitmapSourceViewer viewer = sender as BitmapSourceViewer; 
   string s = string.Format("InteractiveMode changed to: {0}", viewer.InteractiveMode.ToString()); 
   MessageBox.Show(s); 
} 
public void BitmapSourceViewer_InteractiveMode(BitmapSourceViewer viewer) 
{ 
   viewer.InteractiveModeChanged+=new RoutedPropertyChangedEventHandler<BitmapSourceViewerInteractiveMode>(viewer_InteractiveModeChanged); 
   viewer.InteractivePan += new InteractivePanEventHandler(viewer_InteractivePan); 
 
   switch(viewer.InteractiveMode) 
   { 
      case BitmapSourceViewerInteractiveMode.None: 
         viewer.InteractiveMode = BitmapSourceViewerInteractiveMode.Pan; 
         break; 
 
      case BitmapSourceViewerInteractiveMode.Pan: 
         viewer.InteractiveMode = BitmapSourceViewerInteractiveMode.MagnifyGlass; 
         break; 
 
      case BitmapSourceViewerInteractiveMode.MagnifyGlass: 
         viewer.InteractiveMode = BitmapSourceViewerInteractiveMode.Geometry; 
         break; 
 
      case BitmapSourceViewerInteractiveMode.Geometry: 
         viewer.InteractiveMode = BitmapSourceViewerInteractiveMode.ZoomTo; 
         break; 
 
      case BitmapSourceViewerInteractiveMode.ZoomTo: 
         viewer.InteractiveMode = BitmapSourceViewerInteractiveMode.None; 
         break; 
   } 
 
   viewer.InteractiveModeChanged -= new RoutedPropertyChangedEventHandler<BitmapSourceViewerInteractiveMode>(viewer_InteractiveModeChanged); 
}
XAMLCopy Code
<Window x:Class="WPFSamples.BitmapSourceViewer" Height="600" Width="800" Title="InteractiveMode Sample" 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"> 
  <DockPanel> 
    <Leadtools_Windows_Controls:BitmapSourceViewer Name="theViewer" Source="file:///C:\Program Files\LEAD Technologies\LEADTOOLS 16\Images\slave.jpg" DockPanel.Dock="Bottom" HorizontalAlignment="Center" VerticalAlignment="Center" InteractiveMode="Scale" InteractiveModeChanged="viewer_InteractiveModeChanged" /> 
  </DockPanel> 
</Window>

Requirements

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Vista, and Windows Server 2003 family

See Also