main()
{
    ...
    ...

    while(1)
    {
        if(MTOUCH_Service_Mainloop())
        {
             if(MTOUCH_Surface_Status_Get() & TOUCH_ACTIVE)
             {
                 printf("The surface touch position is (%d,%d).\r\n" ,
                 MTOUCH_Surface_Position_Get(HORIZONTAL),MTOUCH_Surface_Position_Get(VERTICAL));
             }
        }
    }
}