[Visual Basic 6.0]
' Use the SetEmpty to release memory for geometries. 

Private Function EmptyGeometry(pGeo As IGeometry) As Boolean 
  pGeo.SetEmpty 
  EmptyGeometry = pGeo.IsEmpty 
End Function 

[C#]
private bool EmptyGeometry(IGeometry geometry)
{
  geometry.SetEmpty();
  return geometry.IsEmpty;
}

[Visual Basic .NET, C++]
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