Public Function BeginBufferGeodesic( _
   ByVal InSpatialReference As SpatialReference, _
   ByVal OutSpatialReference As SpatialReference, _
   ByVal Distances() As Double, _
   ByVal MaxDeviation As Double, _
   ByVal LinearUnit As LinearUnit, _
   ByVal UnionResults As Boolean, _
   ByVal InGeometryArray() As Geometry, _
   ByVal callback As AsyncCallback, _
   ByVal asyncState As Object _
) As IAsyncResult

Dim instance As GeometryServerProxy
Dim InSpatialReference As SpatialReference
Dim OutSpatialReference As SpatialReference
Dim Distances() As Double
Dim MaxDeviation As Double
Dim LinearUnit As LinearUnit
Dim UnionResults As Boolean
Dim InGeometryArray() As Geometry
Dim callback As AsyncCallback
Dim asyncState As Object
Dim value As IAsyncResult
 
value = instance.BeginBufferGeodesic(InSpatialReference, OutSpatialReference, Distances, MaxDeviation, LinearUnit, UnionResults, InGeometryArray, callback, asyncState)

public IAsyncResult BeginBufferGeodesic( 
   SpatialReference InSpatialReference,
   SpatialReference OutSpatialReference,
   double[] Distances,
   double MaxDeviation,
   LinearUnit LinearUnit,
   bool UnionResults,
   Geometry[] InGeometryArray,
   AsyncCallback callback,
   object asyncState
)