How to implement functions from ResearchMode.h

[EliasMosco]

Hello, i love this product but im trying to access 2 specific functions that im not sure how to.
can you helpe me acces these?

DECLARE_INTERFACE_IID_(IResearchModeCameraSensor, IUnknown, "3BDB4977-960B-4F5D-8CA3-D21E68F26E76")
{
STDMETHOD(MapImagePointToCameraUnitPlane(
float (&uv) [2],
float (&xy) [2])) = 0;
STDMETHOD(MapCameraSpaceToImagePoint(
float(&xy)[2],
float(&uv)[2])) = 0;
STDMETHOD(GetCameraExtrinsicsMatrix(DirectX::XMFLOAT4X4 *pCameraViewMatrix)) = 0;
};

[EliasMosco]

i only need MapImagePointToCameraUnitPlane and MapCameraSpaceToImagePoint