# UDA Meta-dictionary

Following is the definition of the `mco_metadict_header_t` structure that is used for UDA access as defined in `mcouda.h`:

n_maxentries | Maximum number of dictionary entries
n_allocated | Number of entries allocated .
entries | An array of `mco_metadict_entry_t` structures defining the dictionaries (see below).

The UDA dictionary entries are defined by the `mco_metadict_entry_t` struct that is also defined in `mcouda.h`:

dict_no | The number of the dictionary
flags |
name |
dict |
user_data |