public void ShutDown()
        {
            ShutdownWindows();
            DPerfLogger.ShutDown();

            // Release the Timer object
            Timer = null;

            // Release graphics and related objects.
            Graphics?.Shutdown();
            Graphics = null;
            // Release DriectInput related object.
            Input?.Shutdown();
            Input         = null;
            Configuration = null;
        }
        // Methods
        public virtual bool Initialize(string title, int width, int height, bool vSync, bool fullScreen, int testTimeSeconds)
        {
            bool result = false;

            if (Configuration == null)
            {
                Configuration = new DSystemConfiguration(title, width, height, fullScreen, vSync);
            }

            // Initialize Window.
            InitializeWindows(title);

            if (Input == null)
            {
                Input = new DInput();
                if (!Input.Initialize(Configuration, RenderForm.Handle))
                {
                    return(false);
                }
            }
            if (Graphics == null)
            {
                Graphics = new DGraphics();
                result   = Graphics.Initialize(Configuration, RenderForm.Handle);
            }

            DPerfLogger.Initialize("RenderForm C# SharpDX: " + Configuration.Width + "x" + Configuration.Height + " VSync:" + DSystemConfiguration.VerticalSyncEnabled + " FullScreen:" + DSystemConfiguration.FullScreen + "   " + RenderForm.Text, testTimeSeconds, Configuration.Width, Configuration.Height);;

            // Create and initialize Timer.
            Timer = new DTimer();
            if (!Timer.Initialize())
            {
                MessageBox.Show("Could not initialize Timer object", "Error", MessageBoxButtons.OK);
                return(false);
            }

            return(result);
        }