appkit/include/rnr/appkit/Win.h
void unregisterButtonClickCallback()
    {
      m_funcBttnCb = NULL;
      m_dataBttnCb = NULL;
    }
/*!
     * \brief Unregister application button click event callback.
     */
\brief Unregister application button click event callback.
\ brief Unregister application button click event callback .
void unregisterButtonClickCallback()
    {
      m_funcBttnCb = NULL;
      m_dataBttnCb = NULL;
    }
void unregisterButtonClickCallback ( ) { m_funcBttnCb = NULL ; m_dataBttnCb = NULL ; }
\brief Unregister application button click event callback.
\ brief Unregister application button click event callback .