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InteractivePan Event
See Also 
Leadtools.Windows.Controls Namespace > ImageViewer Class : InteractivePan Event



Occurs when the user performs interactive panning of the image display. Supported in Silverlight, Windows Phone 7

Syntax

Visual Basic (Declaration) 
Public Event InteractivePan As EventHandler(Of LineInteractiveEventArgs)
Visual Basic (Usage)Copy Code
Dim instance As ImageViewer
Dim handler As EventHandler(Of LineInteractiveEventArgs)
 
AddHandler instance.InteractivePan, handler
C# 
public event EventHandler<LineInteractiveEventArgs> InteractivePan
C++/CLI 
public:
event EventHandler<LineInteractiveEventArgs^>^ InteractivePan

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. Supported in Silverlight, Windows Phone 7
Cancel (Inherited from Leadtools.Windows.Controls.InteractiveEventArgs)Gets or sets a value indicating whether the interactive mode should be canceled. Supported in Silverlight, Windows Phone 7
End Gets the end location for the current interactive line mode. Supported in Silverlight, Windows Phone 7
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. Supported in Silverlight, Windows Phone 7

Example

This example will change the cursors used in InteractiveMode.Pan to be a cross when idle and an cursor when working.

Visual BasicCopy Code
Private Sub viewer_InteractivePan(ByVal sender As Object, ByVal e As LineInteractiveEventArgs)
    Dim viewer As ImageViewer = TryCast(sender, ImageViewer)
    Console.WriteLine("InteractivePan: 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_InteractivePan(ByVal viewer As ImageViewer)
    AddHandler viewer.InteractivePan, AddressOf viewer_InteractivePan
    AddHandler viewer.InteractiveModeEnded, AddressOf viewer_InteractiveModeEnded
    viewer.SetInteractiveModeCursor(InteractiveMode.Pan, Cursors.Cross, Cursors.None)
    viewer.InteractiveMode = InteractiveMode.Pan

    ' Do the panning

    ' After you are done, you must remove the event handler as in below
    ' RemoveHandler viewer.InteractiveModeEnded, AddressOf viewer_InteractiveModeEnded
End Sub

Private Sub viewer_InteractiveModeEnded(ByVal sender As Object, ByVal e As EventArgs)
    MessageBox.Show("Panning Done")
End Sub
C#Copy Code
private void viewer_InteractivePan(object sender, LineInteractiveEventArgs e)
{
   ImageViewer viewer = sender as ImageViewer;
   Console.WriteLine("InteractivePan: e.Begin {0}, e.End{1}, e.Status {2}, e.Cancel {3}", e.Begin, e.End, e.Status, e.Cancel);
}

public void BitmapSourceViewer_InteractivePan(ImageViewer viewer)
{
   viewer.InteractivePan +=new EventHandler<LineInteractiveEventArgs>(viewer_InteractivePan);
   viewer.InteractiveModeEnded += new EventHandler<EventArgs>(viewer_InteractiveModeEnded);
   viewer.SetInteractiveModeCursor(InteractiveMode.Pan, Cursors.Cross, Cursors.None);
   viewer.InteractiveMode = InteractiveMode.Pan;

   // Do the panning

   // After you are done, you must remove the event handler as in below
   // viewer.InteractivePan -= new EventHandler<LineInteractiveEventArgs>(viewer_InteractivePan);
}

void viewer_InteractiveModeEnded(object sender, EventArgs e)
{
   MessageBox.Show("Panning Done");
}
SilverlightCSharpCopy Code
private void viewer_InteractivePan(object sender, LineInteractiveEventArgs e)
{
   ImageViewer viewer = sender as ImageViewer;
   Console.WriteLine("InteractivePan: e.Begin {0}, e.End{1}, e.Status {2}, e.Cancel {3}", e.Begin, e.End, e.Status, e.Cancel);
}

public void BitmapSourceViewer_InteractivePan(ImageViewer viewer)
{
   viewer.InteractivePan +=new EventHandler<LineInteractiveEventArgs>(viewer_InteractivePan);
   viewer.InteractiveModeEnded += new EventHandler<EventArgs>(viewer_InteractiveModeEnded);
   viewer.SetInteractiveModeCursor(InteractiveMode.Pan, Cursors.Hand, Cursors.None);
   viewer.InteractiveMode = InteractiveMode.Pan;

   // Do the panning

   // After you are done, you must remove the event handler as in below
   // viewer.InteractivePan -= new EventHandler<LineInteractiveEventArgs>(viewer_InteractivePan);
}

void viewer_InteractiveModeEnded(object sender, EventArgs e)
{
   MessageBox.Show("Panning Done");
}
SilverlightVBCopy Code
Private Sub viewer_InteractivePan(ByVal sender As Object, ByVal e As LineInteractiveEventArgs)
   Dim viewer As ImageViewer = TryCast(sender, ImageViewer)
   Console.WriteLine("InteractivePan: 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_InteractivePan(ByVal viewer As ImageViewer)
   AddHandler viewer.InteractivePan, AddressOf viewer_InteractivePan
   AddHandler viewer.InteractiveModeEnded, AddressOf viewer_InteractiveModeEnded
   viewer.SetInteractiveModeCursor(InteractiveMode.Pan, Cursors.Hand, Cursors.None)
   viewer.InteractiveMode = InteractiveMode.Pan

   ' Do the panning

   ' After you are done, you must remove the event handler as in below
   ' viewer.InteractivePan -= new EventHandler<LineInteractiveEventArgs>(viewer_InteractivePan);
End Sub

Private Sub viewer_InteractiveModeEnded(ByVal sender As Object, ByVal e As EventArgs)
   MessageBox.Show("Panning Done")
End Sub

Remarks

Requirements

Target Platforms: Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family

See Also