Public Overloads Sub BufferAsync( _
   ByVal InSpatialReference As SpatialReference, _
   ByVal BufferSpatialReference As SpatialReference, _
   ByVal OutSpatialReference As SpatialReference, _
   ByVal Distances() As Double, _
   ByVal Unit As Unit, _
   ByVal UnionResults As Boolean, _
   ByVal InGeometryArray() As Geometry, _
   ByVal userState As Object _
) 

Dim instance As GeometryServerProxy
Dim InSpatialReference As SpatialReference
Dim BufferSpatialReference As SpatialReference
Dim OutSpatialReference As SpatialReference
Dim Distances() As Double
Dim Unit As Unit
Dim UnionResults As Boolean
Dim InGeometryArray() As Geometry
Dim userState As Object
 
instance.BufferAsync(InSpatialReference, BufferSpatialReference, OutSpatialReference, Distances, Unit, UnionResults, InGeometryArray, userState)

public void BufferAsync( 
   SpatialReference InSpatialReference,
   SpatialReference BufferSpatialReference,
   SpatialReference OutSpatialReference,
   double[] Distances,
   Unit Unit,
   bool UnionResults,
   Geometry[] InGeometryArray,
   object userState
)