Creates a surface by extruding a curve along a path curve.
Rhino.ExtrudeCurve (strCurve, strPath)
| strCurve | Required. String. The identifier of the curve object to extrude. | 
| strPath | Required. String. The identifier of the path curve. | 
| String | The identifier of the new object if successful. | 
| Null | If not successful, or on error. | 
Dim strCurve, strPath
strCurve = Rhino.AddCircle(Rhino.WorldXYPlane, 5)
strPath = Rhino.AddLine(Array(5,0,0), Array(10,0,10))
Rhino.ExtrudeCurve strCurve, strPath