История изменений

typedef union SDL_Event
{
    Uint32 type;                            /**< Event type, shared with all events */
    SDL_MouseMotionEvent motion;
    SDL_MouseButtonEvent button;
    SDL_QuitEvent quit;                     /**< Quit request event data */
} SDL_Event;

...
SDL_Event event;
...
event.type = SDL_EVENT_MOUSE_MOTION;
event.motion.x = LOWORD(lParam);

typedef union SDL_Event
{
    Uint32 type;                            /**< Event type, shared with all events */
    SDL_MouseMotionEvent motion;
    SDL_MouseButtonEvent button;
    SDL_QuitEvent quit;                     /**< Quit request event data */
} SDL_Event;

event.type = SDL_EVENT_MOUSE_MOTION;
event.motion.x = LOWORD(lParam);

typedef union SDL_Event
{
    Uint32 type;                            /**< Event type, shared with all events */
    SDL_MouseMotionEvent motion;
    SDL_MouseButtonEvent button;
    SDL_QuitEvent quit;                     /**< Quit request event data */
} SDL_Event;

typedef union SDL_Event
{
    Uint32 type;                            /**< Event type, shared with all events */
    SDL_MouseMotionEvent motion;
    SDL_MouseButtonEvent button;
    SDL_QuitEvent quit;                     /**< Quit request event data */
} SDL_Event;