PK_ERROR_code_t      PK_ERROR_ask_last
(
--- returned arguments ---
PK_LOGICAL_t  *const was_error,     --- whether there was an error
PK_ERROR_sf_t *const error_sf       --- description of the error
)


This function returns the standard form of the most recent PK error.


If there have been no errors, or the last error has been cleared,
was_error will be PK_LOGICAL_false, and the contents of error_sf will
be undefined.

This function may be called at any time.