public static extern int GetWindowDisplayMode(SDL_Window window, out SDL2DisplayMode mode);
 public static extern int SetWindowDisplayMode(SDL_Window window, ref SDL2DisplayMode mode);
 public static extern int GetCurrentDisplayMode(int DisplayIndex, ref SDL2DisplayMode mode);
 public static extern SDL2DisplayMode GetClosestDisplayMode(int DisplayIndex, ref SDL2DisplayMode mode, out SDL2DisplayMode closest);
 public static extern int GetDesktopDisplayMode(int DisplayIndex, ref SDL2DisplayMode mode);