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Leadtools.WinForms Namespace > RasterImageViewer Class : InteractiveCenterAt Event |
public event EventHandler<RasterViewerPointEventArgs> InteractiveCenterAt
'Declaration Public Event InteractiveCenterAt As EventHandler(Of RasterViewerPointEventArgs)
'Usage Dim instance As RasterImageViewer Dim handler As EventHandler(Of RasterViewerPointEventArgs) AddHandler instance.InteractiveCenterAt, handler
public: event EventHandler<RasterViewerPointEventArgs^>^ InteractiveCenterAt
The event handler receives an argument of type RasterViewerPointEventArgs containing data related to this event. The following RasterViewerPointEventArgs properties provide information specific to this event.
Property | Description |
---|---|
Cancel (Inherited from Leadtools.WinForms.RasterViewerInteractiveEventArgs) | Gets or sets a value indicating whether the interactive mode should be canceled. |
Point | Gets the interactive mode event data. |
Status (Inherited from Leadtools.WinForms.RasterViewerInteractiveEventArgs) | Gets the current status of the interactive mode. |
This sample lets center the image in the window by clicking the mouse. Also, it displays the contents of the InteractiveCenterAt event in the console
Imports Leadtools.WinForms Imports Leadtools Imports Leadtools.Codecs Imports Leadtools.ImageProcessing.Color Imports Leadtools.Drawing Private Sub viewer_InteractiveCenterAt(ByVal sender As Object, ByVal e As RasterViewerPointEventArgs) Console.WriteLine("InteractiveCenterAt: e.Status {0}, e.Cancel {1}", e.Status, e.Cancel) End Sub Public Sub RasterImageViewer_InteractiveCenterAt(ByVal viewer As RasterImageViewer) viewer.InteractiveMode = RasterViewerInteractiveMode.CenterAt AddHandler viewer.InteractiveCenterAt, AddressOf viewer_InteractiveCenterAt ' Click mouse on image to see the center the image ' After you are done, you must remove the event handler as in below ' ' viewer.InteractiveCenterAt -= new EventHandler<RasterViewerPointEventArgs>(viewer_InteractiveCenterAt); End Sub
using Leadtools.WinForms; using Leadtools; using Leadtools.Codecs; using Leadtools.ImageProcessing.Color; using Leadtools.Drawing; private void viewer_InteractiveCenterAt(object sender, RasterViewerPointEventArgs e) { Console.WriteLine("InteractiveCenterAt: e.Status {0}, e.Cancel {1}", e.Status, e.Cancel); } public void RasterImageViewer_InteractiveCenterAt(RasterImageViewer viewer) { viewer.InteractiveMode = RasterViewerInteractiveMode.CenterAt; viewer.InteractiveCenterAt += new EventHandler<RasterViewerPointEventArgs>(viewer_InteractiveCenterAt); // Click mouse on image to see the center the image // After you are done, you must remove the event handler as in below // // viewer.InteractiveCenterAt -= new EventHandler<RasterViewerPointEventArgs>(viewer_InteractiveCenterAt); }