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Namespace WindowsApplication1
	Public Partial Class Form1
		Inherits Form
		Implements IMessageFilter
		Public Sub New()
			InitializeComponent()
			Application.AddMessageFilter(Me)
			AddHandler Me.FormClosed, New FormClosedEventHandler(AddressOf Me.Form1_FormClosed)
		End Sub
		Private Sub Form1_FormClosed(sender As Object, e As FormClosedEventArgs)
			Application.RemoveMessageFilter(Me)
		End Sub
		Public Function PreFilterMessage(ByRef m As Message) As Boolean Implements IMessageFilter.PreFilterMessage
			' Filter out WM_NCRBUTTONDOWN/UP/DBLCLK
			If m.Msg = &Ha4 OrElse m.Msg = &Ha5 OrElse m.Msg = &Ha6 Then
				Return True
			End If
			' Filter out WM_RBUTTONDOWN/UP/DBLCLK
			If m.Msg = &H204 OrElse m.Msg = &H205 OrElse m.Msg = &H206 Then
				Return True
			End If
			Return False
		End Function
	End Class
End Namespace