func (v *Stack) AddTitled(child IWidget, name, title string) {
	cName := C.CString(name)
	defer C.free(unsafe.Pointer(cName))
	cTitle := C.CString(title)
	defer C.free(unsafe.Pointer(cTitle))
	C.gtk_stack_add_titled(v.native(), child.toWidget(), (*C.gchar)(cName),
		(*C.gchar)(cTitle))
}
func (v *Stack) AddTitled(child IWidget, name, title string) {
	cName := C.CString(name)
	defer C.free(unsafe.Pointer(cName))
	cTitle := C.CString(title)
	defer C.free(unsafe.Pointer(cTitle))
	C.gtk_stack_add_titled(v.native(), child.toWidget(), (*C.gchar)(cName),
		(*C.gchar)(cTitle))
}
// AddTitled is a wrapper around gtk_stack_add_titled().