public static extern SDL2SubSystem WasInit(SDL2SubSystem flags);
 public static extern void QuitSubSystem(SDL2SubSystem flags);
 public static extern int InitSubSystem(SDL2SubSystem flags);
 public static extern SDL2SubSystem WasInit(SDL2SubSystem flags);
 public static extern void QuitSubSystem(SDL2SubSystem flags);
 public static extern int InitSubSystem(SDL2SubSystem flags);