public InputHandler(Game game, bool allowsExiting) : base(game) { this.allowsExiting = allowsExiting; //Add IInputHandler as Game Service the constructor of this class added the class as a service game.Services.AddService(typeof(IInputHandler), this); //initialize our local member fields keyboard = new KeyboardHandler(); #if !XBOX360 Game.IsMouseVisible = true; prevMouseState = Mouse.GetState(); #endif }