Sets completion to be the auxiliary completion object to use with entry. All further configuration of the completion mechanism is done on completion using the #GtkEntryCompletion API. Completion is disabled if completion is set to null.
The #GtkEntryCompletion or null
Sets completion to be the auxiliary completion object to use with entry. All further configuration of the completion mechanism is done on completion using the #GtkEntryCompletion API. Completion is disabled if completion is set to null.