Microsoft.Xna.Framework.Graphics.GraphicsExtensions.GetFrameLatency C# (CSharp) Method

        public static int GetFrameLatency(this PresentInterval interval)
        {
            switch (interval)
            {
                case PresentInterval.Immediate:
                    return 0;

                case PresentInterval.Two:
                    return 2;

                default:
                    return 1;
            }
        }