[.net] XNA questions

#region Using Statementsusing System;using System.Collections.Generic;using Microsoft.Xna.Framework;using Microsoft.Xna.Framework.Audio;using Microsoft.Xna.Framework.Content;using Microsoft.Xna.Framework.Graphics;using Microsoft.Xna.Framework.Input;using Microsoft.Xna.Framework.Storage;#endregionnamespace deneme{    /// <summary>    /// This is the main type for your game    /// </summary>    public class Game1 : Microsoft.Xna.Framework.Game    {        GraphicsDeviceManager graphics;        ContentManager content;        GraphicsDevice m_Device;        Effect effect;        VertexPositionColor[] vertices;                private VertexBuffer vb;        private IndexBuffer ib;        private float angle = 0.0f;        public Game1()        {            graphics = new GraphicsDeviceManager(this);            content = new ContentManager(Services);            Window.AllowUserResizing = true;	        Window.ClientSizeChanged += new System.EventHandler(Window_ClientSizeChanged);                    }        /// <summary>        /// Allows the game to perform any initialization it needs to before starting to run.        /// This is where it can query for any required services and load any non-graphic        /// related content.  Calling base.Initialize will enumerate through any components        /// and initialize them as well.        /// </summary>        protected override void Initialize()        {            // TODO: Add your initialization logic here            base.Initialize();                        SetupXNADevice();            SetupVertices();                        SetUpIndices();                        SetUpCamera();        }        private void SetupXNADevice()        {            m_Device = graphics.GraphicsDevice;            CompiledEffect compiledEffect = Effect.CompileEffectFromFile("@/../../../../effects.fx", null, null, CompilerOptions.None, TargetPlatform.Windows);            effect = new Effect(graphics.GraphicsDevice, compiledEffect.GetEffectCode(), CompilerOptions.None, null);            graphics.PreferredBackBufferWidth = 800;            graphics.PreferredBackBufferHeight = 600;            graphics.IsFullScreen = false;            graphics.ApplyChanges();            Window.Title = "My First XNA Game :)";            //Disable back face culling            m_Device.RenderState.CullMode = CullMode.None;        }        private void SetupVertices()        {            vertices = new VertexPositionColor[5];             vertices[0].Position = new Vector3(0f, 0f, 0f);            vertices[0].Color = Color.White;            vertices[1].Position = new Vector3(5f, 0f, 0f);            vertices[1].Color = Color.White;            vertices[2].Position = new Vector3(10f, 0f, 0f);            vertices[2].Color = Color.White;            vertices[3].Position = new Vector3(5f, 5f, 0f);            vertices[3].Color = Color.White;            vertices[4].Position = new Vector3(10f, 5f, 0f);            vertices[4].Color = Color.White;                 vb = new VertexBuffer(m_Device, sizeof(float) * 4 * 5, ResourceUsage.WriteOnly, ResourceManagementMode.Automatic);            vb.SetData(vertices);        }        private void SetUpIndices()         {             short[] indices = new short[6];                      indices[0] = 3;             indices[1] = 1;             indices[2] = 0;             indices[3] = 4;             indices[4] = 2;             indices[5] = 1;                      ib = new IndexBuffer(m_Device, typeof(short), 6, ResourceUsage.WriteOnly, ResourceManagementMode.Automatic);             ib.SetData(indices);         }        private void SetUpCamera()        {            Matrix viewMatrix = Matrix.CreateLookAt(new Vector3(0, 0, 40), new Vector3(0, 0, 0), new Vector3(0, 1, 0));            Matrix projectionMatrix = Matrix.CreatePerspectiveFieldOfView(MathHelper.PiOver4, this.Window.ClientBounds.Width / this.Window.ClientBounds.Height, 1.0f, 50.0f);                            }               protected void Window_ClientSizeChanged(object sender, System.EventArgs e)         {                     graphics.PreferredBackBufferWidth = Window.ClientBounds.Width;	        graphics.PreferredBackBufferHeight = Window.ClientBounds.Height;                                                        }        /// <summary>        /// Load your graphics content.  If loadAllContent is true, you should        /// load content from both ResourceManagementMode pools.  Otherwise, just        /// load ResourceManagementMode.Manual content.        /// </summary>        /// <param name="loadAllContent">Which type of content to load.</param>        protected override void LoadGraphicsContent(bool loadAllContent)        {            if (loadAllContent)            {                // TODO: Load any ResourceManagementMode.Automatic content            }                        CompiledEffect compiledEffect = Effect.CompileEffectFromFile("@/../../../../effects.fx", null, null, CompilerOptions.None, TargetPlatform.Windows);            effect = new Effect(graphics.GraphicsDevice, compiledEffect.GetEffectCode(), CompilerOptions.None, null);                                    if(this.Window.ClientBounds.Height>0){                Matrix viewMatrix = Matrix.CreateLookAt(new Vector3(0, 0, 40), new Vector3(0, 0, 0), new Vector3(0, 1, 0));                Matrix projectionMatrix = Matrix.CreatePerspectiveFieldOfView(MathHelper.PiOver4, this.Window.ClientBounds.Width / this.Window.ClientBounds.Height, 1.0f, 50.0f);                effect.Parameters["xView"].SetValue(viewMatrix);                effect.Parameters["xProjection"].SetValue(projectionMatrix);                effect.Parameters["xWorld"].SetValue(Matrix.Identity);            }                        // TODO: Load any ResourceManagementMode.Manual content        }        /// <summary>        /// Unload your graphics content.  If unloadAllContent is true, you should        /// unload content from both ResourceManagementMode pools.  Otherwise, just        /// unload ResourceManagementMode.Manual content.  Manual content will get        /// Disposed by the GraphicsDevice during a Reset.        /// </summary>        /// <param name="unloadAllContent">Which type of content to unload.</param>        protected override void UnloadGraphicsContent(bool unloadAllContent)        {            if (unloadAllContent)            {                // TODO: Unload any ResourceManagementMode.Automatic content                content.Unload();            }            effect.Dispose();                        // TODO: Unload any ResourceManagementMode.Manual content        }        /// <summary>        /// Allows the game to run logic such as updating the world,        /// checking for collisions, gathering input and playing audio.        /// </summary>        /// <param name="gameTime">Provides a snapshot of timing values.</param>        protected override void Update(GameTime gameTime)        {            // Allows the game to exit            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)                this.Exit();            	        KeyboardState kState = Keyboard.GetState();	        if(kState.IsKeyDown(Keys.F)) {		        graphics.ToggleFullScreen();	        }            // TODO: Add your update logic here            angle += 0.05f;            base.Update(gameTime);        }        /// <summary>        /// This is called when the game should draw itself.        /// </summary>        /// <param name="gameTime">Provides a snapshot of timing values.</param>        protected override void Draw(GameTime gameTime)        {            m_Device.Clear(Color.BurlyWood);                        effect.CurrentTechnique = effect.Techniques["Colored"];                        Vector3 rotAxis = new Vector3(3*angle, angle, 2*angle);            rotAxis.Normalize();                        Matrix worldMatrix = Matrix.CreateTranslation(-5, -10 * 1 / 3, 0) * Matrix.CreateFromAxisAngle(rotAxis, angle);            worldMatrix = Matrix.Identity;            effect.Parameters["xWorld"].SetValue(worldMatrix);            m_Device.RenderState.FillMode = FillMode.WireFrame;                        effect.Begin();            foreach (EffectPass pass in effect.CurrentTechnique.Passes)            {                pass.Begin();                               m_Device.Vertices[0].SetSource(vb, 0, VertexPositionColor.SizeInBytes);                m_Device.Indices = ib;                m_Device.VertexDeclaration = new VertexDeclaration(m_Device, VertexPositionColor.VertexElements);                m_Device.DrawIndexedPrimitives(PrimitiveType.TriangleList, 0, 0, 5, 0, 2);                pass.End();            }            effect.End();                       base.Draw(gameTime);        }    }}

ControlForm form;

form = new ControlForm();form.Show();

Color backColour = Color.PaleTurquoise;public Color GetBackColor { get { return backColour; } }//Access the textboxpublic String CameraTarget { set { CamTextBox.Text = value; } }

System.Threading.Thread.CurrentThread.SetApartmentState(System.Threading.ApartmentState.STA);

    class GraphicsDeviceService        : IGraphicsDeviceService, IServiceProvider    {        public GraphicsDeviceService(GraphicsDevice graphicsDevice)        {            mGraphicsDevice = graphicsDevice;        }        private GraphicsDevice mGraphicsDevice = null;        public GraphicsDevice GraphicsDevice        {            get { return mGraphicsDevice; }        }        public event EventHandler DeviceCreated;        public event EventHandler DeviceDisposing;        public event EventHandler DeviceReset;        public event EventHandler DeviceResetting;        public Object GetService(System.Type serviceType)        {            if (serviceType == typeof(IGraphicsDeviceService))                return this;            else                throw new ArgumentException();;        }    }