gtk/gtk.go
func (v *Entry) SetInputPurpose(purpose InputPurpose) {
	C.gtk_entry_set_input_purpose(v.native(), C.GtkInputPurpose(purpose))
}
func (v *Entry) SetInputPurpose(purpose InputPurpose) {
	C.gtk_entry_set_input_purpose(v.native(), C.GtkInputPurpose(purpose))
}
// TODO(jrick) GdkRectangle
/*
func (v *Entry) GetIconArea() {
}
*/
// SetInputPurpose() is a wrapper around gtk_entry_set_input_purpose().