Public Sub IncidentDirectionVecPosPartials( _
    ByVal Frame As AgEUtFrame, _
    ByRef DirXwrtX As Double, _
    ByRef DirXwrtY As Double, _
    ByRef DirXwrtZ As Double, _
    ByRef DirYwrtX As Double, _
    ByRef DirYwrtY As Double, _
    ByRef DirYwrtZ As Double, _
    ByRef DirZwrtX As Double, _
    ByRef DirZwrtY As Double, _
    ByRef DirZwrtZ As Double _
)

public void IncidentDirectionVecPosPartials(
    AgEUtFrame Frame,
    ref double DirXwrtX,
    ref double DirXwrtY,
    ref double DirXwrtZ,
    ref double DirYwrtX,
    ref double DirYwrtY,
    ref double DirYwrtZ,
    ref double DirZwrtX,
    ref double DirZwrtY,
    ref double DirZwrtZ
);

public: void IncidentDirectionVecPosPartials(
    AgEUtFrame Frame,
    double ^ DirXwrtX,
    double ^ DirXwrtY,
    double ^ DirXwrtZ,
    double ^ DirYwrtX,
    double ^ DirYwrtY,
    double ^ DirYwrtZ,
    double ^ DirZwrtX,
    double ^ DirZwrtY,
    double ^ DirZwrtZ
);

public: HRESULT IncidentDirectionVecPosPartials(
    AgEUtFrame Frame,
    double * DirXwrtX,
    double * DirXwrtY,
    double * DirXwrtZ,
    double * DirYwrtX,
    double * DirYwrtY,
    double * DirYwrtZ,
    double * DirZwrtX,
    double * DirZwrtY,
    double * DirZwrtZ
);