Method start

src/input.cpp:933–940

        return m_active;
    }
    void start(std::function<void(Window *)> callback)
    {
        Q_ASSERT(!m_active);
        m_active = true;
        m_callback = callback;
        input()->keyboard()->update();
        input()->touch()->cancel();
    }
    void start(std::function<void(const QPoint &)> callback)
    {
        Q_ASSERT(!m_active);