HRESULT ID2D1PathGeometry1::ComputePointAndSegmentAtLength([In] float length,[In] unsigned int startSegment,[In, Optional] const D2D_MATRIX_3X2_F* worldTransform,[In] float flatteningTolerance,[Out] D2D1_POINT_DESCRIPTION* pointDescription)

'宣言
 
Public Sub ComputePointAndSegmentAtLength( _
   ByVal length As System.Single, _
   ByVal startSegment As System.Integer, _
   ByVal worldTransform As System.Nullable(Of Matrix3x2), _
   ByVal flatteningTolerance As System.Single, _
   ByRef pointDescriptionRef As PointDescription _
) 

public void ComputePointAndSegmentAtLength( 
   System.float length,
   System.int startSegment,
   System.Nullable<Matrix3x2> worldTransform,
   System.float flatteningTolerance,
   out PointDescription pointDescriptionRef
)