[ Version ( since = "0.3.6" ) ]
public bool add_for_id (string key_name, Value value)
Appends the value associated with key_name to this.
This key_name is used to create a new ParamSpec instance, which is further used to create and
register a key using register_metadata_key.
A property key_name consists of segments consisting of ASCII letters and digits, separated by either the '-' or '_' character. The first character of a property key_name must be a letter. Key_names which violate these rules lead to undefined behaviour.
| this |
data to change |
| key_name |
name of the key to change or add |
| value |
the new value |
|
TRUE if |