gtk/gtk.go
func (v *Layout) Put(w IWidget, x, y int) {
	C.gtk_layout_put(v.native(), w.toWidget(), C.gint(x), C.gint(y))
}
func (v *Layout) Put(w IWidget, x, y int) {
	C.gtk_layout_put(v.native(), w.toWidget(), C.gint(x), C.gint(y))
}
// Layout.Put is a wrapper around gtk_layout_put().