[ Version ( since = "3.50" ) ]
public bool dup_summary_field (ContactField summary_field, string uid, out string out_value, Cancellable? cancellable = null) throws Error
Queries the this for a summary_field value for contact with UID uid.
Note the field value may not correspond precisely to the value stored in the vCard (it can be in lower case).
Free the out_value with g_free, when no longer needed.
| this |
an BookCache |
| summary_field |
a field to query, which should be in the summary |
| uid |
a contact UID to query the |
| out_value |
|
| cancellable |
|
Whether succeeded. |