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InteractiveCenterAt Event
See Also  Example
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()
Managed Extensions for C++ 
public: __event EventHandler<RasterViewerPointEventArgs>* InteractiveCenterAt();
C++/CLI 
public:
event EventHandler<RasterViewerPointEventArgs>^ InteractiveCenterAt();

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

Only occurs when the InteractiveMode property is set to RasterViewerInteractiveMode.CenterAt.

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also