Public Function BeginGetDefaultLayerDrawingDescriptions( _
   ByVal MapName As String, _
   ByVal LayerIDs() As Integer, _
   ByVal SymbolOutputOptions As ServerSymbolOutputOptions, _
   ByVal callback As AsyncCallback, _
   ByVal asyncState As Object _
) As IAsyncResult

Dim instance As MapServerProxy
Dim MapName As String
Dim LayerIDs() As Integer
Dim SymbolOutputOptions As ServerSymbolOutputOptions
Dim callback As AsyncCallback
Dim asyncState As Object
Dim value As IAsyncResult
 
value = instance.BeginGetDefaultLayerDrawingDescriptions(MapName, LayerIDs, SymbolOutputOptions, callback, asyncState)

public IAsyncResult BeginGetDefaultLayerDrawingDescriptions( 
   string MapName,
   int[] LayerIDs,
   ServerSymbolOutputOptions SymbolOutputOptions,
   AsyncCallback callback,
   object asyncState
)