Gets the value of a single-valued VCardAttribute, this .
For example, for a FN
(full name) attribute, this will return the contact’s full name as a single string.
This will print a warning if called on an VCardAttribute which is not single-valued
(i.e. for which is_single_valued returns false
). Use
get_values in such cases instead.
this |
A newly allocated string representing the value, or |