AlphaTab.Rendering.ScoreRenderer.OnPreRender C# (CSharp) Метод

        protected virtual void OnPreRender()
        {
            var result = Canvas.OnPreRender();
            var handler = PreRender;
            if (handler != null) handler(new RenderFinishedEventArgs
            {
                TotalWidth = 0,
                TotalHeight = 0,
                Width = 0,
                Height = 0,
                RenderResult = result
            });
        }