C# - DirectX-Form

public class DXObject
    {
        public DXObject() { }
        public DXObject(Mesh model, Vector3 position, Material meshMaterial)
        {
            Model = model;
            Position = position;
            MeshMaterial = meshMaterial;
        }
        public Mesh Model { get; set; }
        public Vector3 Position { get; set; }
        public Material MeshMaterial { get; set; }
    }

    public class DirectXForm : System.Windows.Forms.Form
    {
        #region Private members

        private Vector3 cameraPosition = new Vector3(0, 0, -25);
        private Vector3 lookAtPoint = new Vector3(0, 0, 0);
        private Vector3 upVector = new Vector3(0, 1, 0);
        Microsoft.DirectX.DirectInput.Device keyboard = null;
        private Color backgroundColor = Color.Blue;

        #endregion


        #region Public members

        public event EventHandler Rendered;

        public Microsoft.DirectX.Direct3D.Device D3DDevice = null;

        public List<DXObject> Meshes = new List<DXObject>();

        public Vector3 CameraPostition
        {
            get { return cameraPosition; }
            set { cameraPosition = value; }
        }

        public Vector3 LookAtPoint
        {
            get { return lookAtPoint; }
            set { lookAtPoint = value; }
        }

        public Microsoft.DirectX.DirectInput.Device DXKeyboard
        {
            get { return keyboard; }
        }

        public Color BackgroundColor
        {
            get { return backgroundColor; }
            set { backgroundColor = value; }
        }

        #endregion


        #region Constructors

        public DirectXForm() : this(new Size(640, 480)) { }

        public DirectXForm(Size size)
        {
            this.ClientSize = size;
            this.Text = "";
            this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.Opaque, true);
            this.FormBorderStyle = FormBorderStyle.FixedDialog;
            Caps caps = Microsoft.DirectX.Direct3D.Manager.GetDeviceCaps(Microsoft.DirectX.Direct3D.Manager.Adapters.Default.Adapter, Microsoft.DirectX.Direct3D.DeviceType.Hardware);
            CreateFlags flags;
            if (caps.DeviceCaps.SupportsHardwareTransformAndLight)
                flags = CreateFlags.HardwareVertexProcessing;
            else
                flags = CreateFlags.SoftwareVertexProcessing;
            PresentParameters presParams = new PresentParameters();
            presParams.BackBufferFormat = Format.Unknown;
            presParams.SwapEffect = SwapEffect.Discard;
            presParams.Windowed = true;
            presParams.EnableAutoDepthStencil = true;
            presParams.AutoDepthStencilFormat = DepthFormat.D16;
            D3DDevice = new Microsoft.DirectX.Direct3D.Device(0, Microsoft.DirectX.Direct3D.DeviceType.Hardware, this, flags, presParams);
            D3DDevice.DeviceReset += new System.EventHandler(this.OnResetDevice);
            OnResetDevice(D3DDevice, null);
            D3DDevice.RenderState.Lighting = true;
            D3DDevice.Lights[0].Type = LightType.Directional;
            D3DDevice.Lights[0].Direction = new Vector3(0, 0, 1f);
            D3DDevice.Lights[0].Diffuse = Color.White;
            D3DDevice.Lights[0].Enabled = true;
            D3DDevice.RenderState.FillMode = FillMode.Solid;
            keyboard = new Microsoft.DirectX.DirectInput.Device(SystemGuid.Keyboard);
            keyboard.SetCooperativeLevel(this, CooperativeLevelFlags.Background | CooperativeLevelFlags.NonExclusive);
            keyboard.Acquire();
        }

        #endregion


        #region Methods

        protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
        {
            this.Render();
            this.Invalidate();
        }

        protected void OnResetDevice(object sender, EventArgs e)
        {
            Microsoft.DirectX.Direct3D.Device device = (Microsoft.DirectX.Direct3D.Device)sender;
            device.Transform.Projection =
                Matrix.PerspectiveFovLH(Geometry.DegreeToRadian(45.0f),
                (float)this.ClientSize.Width / this.ClientSize.Height,
                0.1f, 100.0f);
            device.RenderState.CullMode = Cull.None;
        }

        private void Render()
        {
            D3DDevice.Clear(ClearFlags.Target | ClearFlags.ZBuffer, Color.DarkBlue, 1.0f, 0);

            D3DDevice.BeginScene();

            D3DDevice.Transform.View = Matrix.LookAtLH(cameraPosition, lookAtPoint, new Vector3(0.0f, 1.0f, 0.0f));
            foreach (DXObject dxo in this.Meshes)
            {
                D3DDevice.Transform.World = Matrix.Translation(dxo.Position);
                D3DDevice.Material = dxo.MeshMaterial;
                dxo.Model.DrawSubset(0);
            }
            D3DDevice.EndScene();
            D3DDevice.Present();
            if (this.Rendered != null)
                Rendered(this, new EventArgs());
        }
        #endregion
    }