Event subtype for display events
Defined in [SDL_video.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_video.h), but apps should _only_ `#include "SDL.h"`!
typedef enum SDL_DisplayEventID
{/**< Never used */
SDL_DISPLAYEVENT_NONE, /**< Display orientation has changed to data1 */
SDL_DISPLAYEVENT_ORIENTATION, /**< Display has been added to the system */
SDL_DISPLAYEVENT_CONNECTED, /**< Display has been removed from the system */
SDL_DISPLAYEVENT_DISCONNECTED, /**< Display has changed position */
SDL_DISPLAYEVENT_MOVED } SDL_DisplayEventID;
CategoryAPI, CategoryAPIEnum, CategoryEnum, CategoryEvents