Creates a GtkSearchBar.
You will need to tell it about which widget is going to be your text entry using [method@Gtk.SearchBar.connect_entry].
a new GtkSearchBar
ConstructionException GTK+ fails to create the object.
See Implementation
Creates a GtkSearchBar.
You will need to tell it about which widget is going to be your text entry using [method@Gtk.SearchBar.connect_entry].