Public Sub SetLayerVisibility( _
   ByVal mapFunctionalityName As String, _
   ByVal layerID As Object, _
   ByVal visible As Boolean _
) 

Dim instance As MapTocFunctionality
Dim mapFunctionalityName As String
Dim layerID As Object
Dim visible As Boolean
 
instance.SetLayerVisibility(mapFunctionalityName, layerID, visible)

public void SetLayerVisibility( 
   string mapFunctionalityName,
   object layerID,
   bool visible
)