Leadtools.WinForms Namespace > RasterImageViewer Class : InteractiveMagnifyGlass Event |
public event EventHandler<RasterViewerLineEventArgs> InteractiveMagnifyGlass
'Declaration Public Event InteractiveMagnifyGlass As EventHandler(Of RasterViewerLineEventArgs)
'Usage Dim instance As RasterImageViewer Dim handler As EventHandler(Of RasterViewerLineEventArgs) AddHandler instance.InteractiveMagnifyGlass, handler
public event EventHandler<RasterViewerLineEventArgs> InteractiveMagnifyGlass
add_InteractiveMagnifyGlass(function(sender, e)) remove_InteractiveMagnifyGlass(function(sender, e))
public: event EventHandler<RasterViewerLineEventArgs^>^ InteractiveMagnifyGlass
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_InteractiveMagnifyGlass(ByVal sender As Object, ByVal e As RasterViewerLineEventArgs) If e.Status = RasterViewerInteractiveStatus.Begin Then System.Windows.Forms.Cursor.Hide() ElseIf e.Status = RasterViewerInteractiveStatus.End Then System.Windows.Forms.Cursor.Show() End If Console.WriteLine("InteractiveMagnifyGlass: 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_InteractiveMagnifyGlass(ByVal viewer As RasterImageViewer) viewer.InteractiveMode = RasterViewerInteractiveMode.MagnifyGlass AddHandler viewer.InteractiveMagnifyGlass, AddressOf viewer_InteractiveMagnifyGlass ' Drag mouse across image to see the magnifying glass ' After you are done, you must remove the event handler as in below ' ' viewer.InteractiveMagnifyGlass -= new EventHandler<RasterViewerLineEventArgs>(viewer_InteractiveMagnifyGlass); End Sub
private void viewer_InteractiveMagnifyGlass(object sender, RasterViewerLineEventArgs e) { if (e.Status == RasterViewerInteractiveStatus.Begin) System.Windows.Forms.Cursor.Hide(); else if (e.Status == RasterViewerInteractiveStatus.End) System.Windows.Forms.Cursor.Show(); Console.WriteLine("InteractiveMagnifyGlass: e.Begin {0}, e.End{1}, e.Status {2}, e.Cancel {3}", e.Begin, e.End, e.Status, e.Cancel); } public void RasterImageViewer_InteractiveMagnifyGlass(RasterImageViewer viewer) { viewer.InteractiveMode = RasterViewerInteractiveMode.MagnifyGlass; viewer.InteractiveMagnifyGlass += new EventHandler<RasterViewerLineEventArgs>(viewer_InteractiveMagnifyGlass); // Drag mouse across image to see the magnifying glass // After you are done, you must remove the event handler as in below // // viewer.InteractiveMagnifyGlass -= new EventHandler<RasterViewerLineEventArgs>(viewer_InteractiveMagnifyGlass); }
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