gtk:entry-completion-set-match-func (completion func)

completion -- a gtk:entry-completion object
func -- a gtk:entry-completion-match-func callback function to use

Sets the match function for the entry completion to be func. The match function is used to determine if a row should or should not be in the completion list. The gtk:entry-completion implementation is deprecated since 4.10. This object will be removed in GTK 5.