Protected Function ScrollControl( _
   ByVal xAmount As Integer, _
   ByVal yAmount As Integer, _
   ByVal scrollRect As Rectangle, _
   ByVal clipRect As Rectangle, _
   ByRef updateRect As Rectangle, _
   ByVal eraseBackground As Boolean, _
   ByVal invalidate As Boolean, _
   ByVal scrollChildren As Boolean, _
   ByVal smoothScrollAmount As Short _
) As Integer

protected int ScrollControl( 
   int xAmount,
   int yAmount,
   Rectangle scrollRect,
   Rectangle clipRect,
   ref Rectangle updateRect,
   bool eraseBackground,
   bool invalidate,
   bool scrollChildren,
   short smoothScrollAmount
)