The standard structure for all the Information Catalog Manager API calls is:
rc = FLGxxx (parameter, parameter, parameter, . . &ExtCode);
These parameters are typically assigned values or addresses in the code preceding the API call.
rc is the variable for the reason code returned by the API call; a reason code of zero (0) means that the API call completed without errors or warnings. &ExtCode is the address for the extended code sometimes returned by the API call.