/// <summary>
 /// Removes a previously attached event handler from the orientation change events.
 ///
 /// The passed parameters must match those used for registration with {@link #.attachHandler} beforehand.
 /// </summary>
 /// <param name="fnFunction">The handler function to detach from the event</param>
 public extern void detachHandler(OrientationChangeDelegate fnFunction);
 /// <summary>
 /// Removes a previously attached event handler from the orientation change events.
 ///
 /// The passed parameters must match those used for registration with {@link #.attachHandler} beforehand.
 /// </summary>
 /// <param name="fnFunction">The handler function to detach from the event</param>
 /// <param name="oListener">The object that wanted to be notified when the event occurred</param>
 public extern void detachHandler(OrientationChangeDelegate fnFunction, object oListener);