Leadtools.WinForms Namespace > RasterImageViewer Class : InteractivePan Event |
public event EventHandler<RasterViewerLineEventArgs> InteractivePan
'Declaration Public Event InteractivePan As EventHandler(Of RasterViewerLineEventArgs)
'Usage Dim instance As RasterImageViewer Dim handler As EventHandler(Of RasterViewerLineEventArgs) AddHandler instance.InteractivePan, handler
public event EventHandler<RasterViewerLineEventArgs> InteractivePan
add_InteractivePan(function(sender, e)) remove_InteractivePan(function(sender, e))
public: event EventHandler<RasterViewerLineEventArgs^>^ InteractivePan
The event handler receives an argument of type RasterViewerLineEventArgs containing data related to this event. The following RasterViewerLineEventArgs properties provide information specific to this event.
Property | Description |
---|---|
Begin | Returns the beginning point for the current interactive mode line. |
Cancel (Inherited from Leadtools.WinForms.RasterViewerInteractiveEventArgs) | Gets or sets a value indicating whether the interactive mode should be canceled. |
End | Returns the end point for the current interactive mode line. |
Status (Inherited from Leadtools.WinForms.RasterViewerInteractiveEventArgs) | Gets the current status of the interactive mode. |
Occurs when the InteractiveMode property is set to RasterViewerInteractiveMode.Pan or RasterViewerInteractiveMode.Scale.
Private Sub viewer_InteractivePan(ByVal sender As Object, ByVal e As RasterViewerLineEventArgs) Dim viewer As RasterImageViewer = CType(IIf(TypeOf sender Is RasterImageViewer, sender, Nothing), RasterImageViewer) If e.Status = RasterViewerInteractiveStatus.Begin Then viewer.Cursor = Cursors.Hand ElseIf e.Status = RasterViewerInteractiveStatus.End Then viewer.Cursor = Cursors.Default End If 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 RasterImageViewer_InteractivePan(ByVal viewer As RasterImageViewer) AddHandler viewer.InteractivePan, AddressOf viewer_InteractivePan viewer.InteractiveMode = RasterViewerInteractiveMode.Pan ' Do the panning ' After you are done, you must remove the event handler as in below ' viewer.InteractivePan -= new EventHandler<RasterViewerLineEventArgs>(viewer_InteractivePan); End Sub
private void viewer_InteractivePan(object sender, RasterViewerLineEventArgs e) { RasterImageViewer viewer = sender as RasterImageViewer; if (e.Status == RasterViewerInteractiveStatus.Begin) viewer.Cursor = Cursors.Hand; else if (e.Status == RasterViewerInteractiveStatus.End) viewer.Cursor = Cursors.Default; 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 RasterImageViewer_InteractivePan(RasterImageViewer viewer) { viewer.InteractivePan += new EventHandler<RasterViewerLineEventArgs>(viewer_InteractivePan); viewer.InteractiveMode = RasterViewerInteractiveMode.Pan; // Do the panning // After you are done, you must remove the event handler as in below // viewer.InteractivePan -= new EventHandler<RasterViewerLineEventArgs>(viewer_InteractivePan); }
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2