PK_ERROR_code_t   PK_PART_ask_construction_surfs
(
--- received arguments ---
PK_PART_t         part,             --- a part

--- returned arguments ---
int        *const n_con_surfs,      --- number of construction surfaces (>=0)
PK_SURF_t **const con_surfs         --- construction surfaces (optional)
)


This function returns the set of construction surfaces connected to the
given part.


The output array con_surfs is optional. If it is set to NULL, the function
will only compute the number of construction surfaces in the part.