// get game window as a win form Form class
Form frm = Control.FromHandle(this.Window.Handle) as Form;

    public class Game1 : Microsoft.Xna.Framework.Game

    {

        GraphicsDeviceManager graphics;

        SpriteBatch spriteBatch;

        private Texture2D img;

        Panel pnl = new Panel();   

        Label lbl = new Label();

        public Game1()

        {

            graphics = new GraphicsDeviceManager(this);

            Content.RootDirectory = "Content";

            // allow the mouse to remain visible and allow user resizing ofthe window

            this.IsMouseVisible = true;

            this.Window.AllowUserResizing = true;

            // create and setup the winform controls on the game window

            this.CreateControls();

            // hook into the client size change event so we can update the win form

            // controls and update the viewport on the graphics device

            this.Window.ClientSizeChanged += this.Window_ClientSizeChanged;

        }

        private void CreateControls()

        {

            // get game window as a win form Form class

            Form frm = Control.FromHandle(this.Window.Handle) as Form;

            // setup the panel control

            this.pnl.Dock = DockStyle.Right;

            this.pnl.Width = 250;

            // createa exit button and add it to the panel

            Button btn = new Button();

            btn.Location = new System.Drawing.Point(10, 10);

            btn.Text = "Exit";

            btn.Click += (sender, e) => { this.Exit(); };

            // add the button to the panel and add the panel to the game window form

            this.pnl.Controls.Add(btn);

            frm.Controls.Add(this.pnl);

            // setup the lable control and add it to the panel control

            this.lbl.Text = "";

            this.lbl.Location = new Point(10, btn.Top + btn.Height + 10);

            this.lbl.AutoSize = true;

            this.pnl.Controls.Add(this.lbl);

        }

        void Window_ClientSizeChanged(object sender, EventArgs e)

        {

            // get the viewport from the graphics device

            var vp = this.GraphicsDevice.Viewport;

            // change the viewport dimensions so that it is not drawn under any of our winform controls

            vp.Width = this.Window.ClientBounds.Width - pnl.Width;

            vp.Height = this.Window.ClientBounds.Height;

            // set the viewport back onto the graphics device

            this.GraphicsDevice.Viewport = vp;

            // update the label to display the rectangle info

            Rectangle rect = new Rectangle(vp.X, vp.Y, vp.Width, vp.Height);

            lbl.Text = "Client: " + this.Window.ClientBounds.ToString() +

                       "\r\n" +

                       "Viewport: " + rect.ToString();

        }

        /// <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()

        {

            this.Window_ClientSizeChanged(this, EventArgs.Empty);

            base.Initialize();

        }

        /// <summary>

        /// LoadContent will be called once per game and is the place to load

        /// all of your content.

        /// </summary>

        protected override void LoadContent()

        {

            // Create a new SpriteBatch, which can be used to draw textures.

            spriteBatch = new SpriteBatch(GraphicsDevice);

             // load a sample image that will be drawn the size of the viewport

            this.img = this.Content.Load<Texture2D>("Map2");

        }

        /// <summary>

        /// UnloadContent will be called once per game and is the place to unload

        /// all content.

        /// </summary>

        protected override void UnloadContent()

        {

            // TODO: Unload any non ContentManager content here

        }

        /// <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();

            // TODO: Add your update logic here

            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)

        {

            GraphicsDevice.Clear(Color.CornflowerBlue);

            // draw the image the same size of the viewport

            this.spriteBatch.Begin();

            var vp = this.GraphicsDevice.Viewport;

            Rectangle rect = new Rectangle(vp.X, vp.Y, vp.Width, vp.Height);

            Rectangle srcrect =new Rectangle(0,0,this.img.Width,this.img.Height);

            this.spriteBatch.Draw(this.img, rect, srcrect, Color.White);

            this.spriteBatch.End();

            base.Draw(gameTime);

        }

    }