Method handleMessageBox

src/interfaces/node.cpp:238–241

        return MakeHandler(::uiInterface.InitMessage.connect(fn));
    }
    std::unique_ptr<Handler> handleMessageBox(MessageBoxFn fn) override
    {
        return MakeHandler(::uiInterface.ThreadSafeMessageBox.connect(fn));
    }
    std::unique_ptr<Handler> handleQuestion(QuestionFn fn) override
    {
        return MakeHandler(::uiInterface.ThreadSafeQuestion.connect(fn));