add_to_group_async

Description:

[ Version ( since = "0.15.5" ) ]
public async bool add_to_group_async (string group, Contact[] contacts) throws Error

Add the given contacts to the given group, creating it if necessary.

For this to work properly this must have interface IFACE_CONNECTION_INTERFACE_CONTACT_GROUPS.

this	a Connection
group	the group to alter.
contacts	An array of Contact objects to include in the group.
callback	a callback to call when the operation finishes
n_contacts	The number of contacts in `contacts` (must be at least 1)
user_data	data to pass to `callback`