Cheesebaron.ParallaxScrollView.ObservableScrollView.OnScrollChanged C# (CSharp) Method

        protected override void OnScrollChanged(int l, int t, int oldl, int oldt)
        {
            base.OnScrollChanged(l, t, oldl, oldt);

            if (null != ScrollChanged)
                ScrollChanged(this, new ObservableScrollViewEventArgs
                    {
                        Left = l, Top = t, OldLeft = oldl, OldTop = oldt
                    });
        }