set_data_full
Description:
Like g_object_set_data except it adds notification for when the association is destroyed, either by setting it to a different
value or when the object is destroyed.
Note that the destroy callback is not called if data is null.
Parameters:
| this |
Object containing the associations |
| key |
name of the key |
| data |
data to associate with that key |
| destroy |
function to call when the association is destroyed |