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InteractiveCenterAt Event
See Also 
Leadtools.WinForms Namespace > RasterImageViewer Class : InteractiveCenterAt Event



Occurs when the user performs interactive center of the image display.

Syntax

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

Event Data

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.

PropertyDescription
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.

Example

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

Visual BasicCopy Code
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
C#Copy Code
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);
}

Remarks

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7

See Also