SDL_MouseButtonEvent - Mouse button event structure

SDL_MouseButtonEvent   is  a  member  of  the  SDL_Event  union  and  is  used  when  an  event  of  type
       SDL_MOUSEBUTTONDOWN or SDL_MOUSEBUTTONUP is reported.

       When a mouse button press or release is detected then number of the button pressed (from 1 to 255, with 1
       usually being the left button and 2 the right) is placed into button, the position of the mouse when this
       event occured is stored in the x and the y fields. Like SDL_KeyboardEvent,  information  on  whether  the
       event  was  a  press  or  a release event is stored in both the type and state fields, but this should be
       obvious.

       SDL_MouseButtonEvent - Mouse button event structure

SDL_Event, SDL_MouseMotionEvent

SDL                                          Tue 11 Sep 2001, 22:59                      SDL_MouseButtonEvent(3)

typeSDL_MOUSEBUTTONDOWN or SDL_MOUSEBUTTONUPbutton              The mouse button index (SDL_BUTTON_LEFT, SDL_BUTTON_MIDDLE, SDL_BUTTON_RIGHT)

       stateSDL_PRESSED or SDL_RELEASEDx, y                The X/Y coordinates of the mouse at press/release time

       typedef struct{
         Uint8 type;
         Uint8 button;
         Uint8 state;
         Uint16 x, y;
       } SDL_MouseButtonEvent;