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int es_mbc_getmbu( struct es_mbc *cls, unsigned fldid, struct es_mbu *cb );


struct es_mbc *cls A database class.
unsigned fldid Field-id.
struct es_mbu *cb Save, load and delete callbacks for user-defined field.

Return Codes

ES_ERROR_NONE Success. No errors.
ES_ERROR_UNKNOWNFIELD Field-id does not exist in class definition or does not correspond to a user-defined type (ES_FLDTYPE_MBU).


Retrieves static user-data, save, load and delete callback functions associated with the user-defined field identified by field-id fldid.

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