Hacktastic detection of full screen video playing

gistfile1.cs

/* 
 * surely there must be a better way?
 * 
 * PresentedViewController.ToString() == "UIViewController"
 * PresentedViewController.GetType() == typeof(UIViewController)
 * new MonoTouch.ObjCRuntime.Class(PresentedViewController.GetType()).Name == "UIViewController"
 */
public override UIInterfaceOrientationMask GetSupportedInterfaceOrientations(UIApplication application, UIWindow forWindow)
{
	bool isFullScreenVideoPlaying = forWindow != null && forWindow.RootViewController != null
	                      && forWindow.RootViewController.PresentedViewController != null
	                      && forWindow.RootViewController.PresentedViewController.ToString().StartsWith("<MPInlineVideoFullscreenViewController");

	return isFullScreenVideoPlaying
			? UIInterfaceOrientationMask.All 
			: UIInterfaceOrientationMask.Portrait;
}