PFNGLMULTITEXGENFVEXTPROC typedef
        PFNGLMULTITEXGENFVEXTPROC =
     Void Function(Uint32 texunit, Uint32 coord, Uint32 pname, Pointer<Float>  params)
    
    
    
Implementation
typedef PFNGLMULTITEXGENFVEXTPROC =
    Void Function(
      Uint32 texunit,
      Uint32 coord,
      Uint32 pname,
      Pointer<Float> params,
    );