Leadtools.WinForms Namespace > RasterImageViewer Class : InteractiveScale Event |
public event EventHandler<RasterViewerLineEventArgs> InteractiveScale
'Declaration Public Event InteractiveScale As EventHandler(Of RasterViewerLineEventArgs)
'Usage Dim instance As RasterImageViewer Dim handler As EventHandler(Of RasterViewerLineEventArgs) AddHandler instance.InteractiveScale, handler
public event EventHandler<RasterViewerLineEventArgs> InteractiveScale
add_InteractiveScale(function(sender, e)) remove_InteractiveScale(function(sender, e))
public: event EventHandler<RasterViewerLineEventArgs^>^ InteractiveScale
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. |
Private Sub viewer_InteractiveScale(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.SizeAll ElseIf e.Status = RasterViewerInteractiveStatus.End Then viewer.Cursor = Cursors.Default End If Console.WriteLine("InteractiveScale: 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_InteractiveScale(ByVal viewer As RasterImageViewer) viewer.InteractiveMode = RasterViewerInteractiveMode.Scale AddHandler viewer.InteractiveScale, AddressOf viewer_InteractiveScale ' Drag mouse across image to scale the image ' After you are done, you must remove the event handler as in below ' ' viewer.InteractiveScale -= new EventHandler<RasterViewerLineEventArgs>(viewer_InteractiveScale); End Sub
private void viewer_InteractiveScale(object sender, RasterViewerLineEventArgs e) { RasterImageViewer viewer = sender as RasterImageViewer; if (e.Status == RasterViewerInteractiveStatus.Begin) viewer.Cursor = Cursors.SizeAll; else if (e.Status == RasterViewerInteractiveStatus.End) viewer.Cursor = Cursors.Default; Console.WriteLine("InteractiveScale: e.Begin {0}, e.End{1}, e.Status {2}, e.Cancel {3}", e.Begin, e.End, e.Status, e.Cancel); } public void RasterImageViewer_InteractiveScale(RasterImageViewer viewer) { viewer.InteractiveMode = RasterViewerInteractiveMode.Scale; viewer.InteractiveScale += new EventHandler<RasterViewerLineEventArgs>(viewer_InteractiveScale); // Drag mouse across image to scale the image // After you are done, you must remove the event handler as in below // // viewer.InteractiveScale -= new EventHandler<RasterViewerLineEventArgs>(viewer_InteractiveScale); }
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