/// <summary>
       /// Initializes a new instance of this class, which provides basic graphics device initialization, game logic, rendering code, and a game loop.  Reference page contains code sample.
       /// </summary>
       public Game()
       {
         FrameworkDispatcher.Update();
         this.EnsureHost();
         this.launchParameters = new LaunchParameters();
         this.gameComponents = new GameComponentCollection();
         this.gameComponents.ComponentAdded += new EventHandler<GameComponentCollectionEventArgs>(this.GameComponentAdded);
         this.gameComponents.ComponentRemoved += new EventHandler<GameComponentCollectionEventArgs>(this.GameComponentRemoved);
         this.content = new ContentManager((IServiceProvider) this.gameServices);
         this.host.Window.Paint += new EventHandler<EventArgs>(this.Paint);
         this.clock = new GameClock();
         this.totalGameTime = TimeSpan.Zero;
         this.accumulatedElapsedGameTime = TimeSpan.Zero;
         this.lastFrameElapsedGameTime = TimeSpan.Zero;
         this.targetElapsedTime = TimeSpan.FromTicks(166667L);
         this.inactiveSleepTime = TimeSpan.FromMilliseconds(20.0);
       }

protected virtual void Initialize()
       {
         this.HookDeviceEvents();
         while (this.notYetInitialized.Count != 0)
         {
           this.notYetInitialized[0].Initialize();
           this.notYetInitialized.RemoveAt(0);
         }
         if (this.graphicsDeviceService == null || this.graphicsDeviceService.GraphicsDevice == null)
           return;
         this.LoadContent();
       }

using WinForms = System.Windows.Forms;
using System.IO;
...
         protected override void Initialize()
         {
             WinForms.Control mainWindow = WinForms.Control.FromHandle(Window.Handle);
             mainWindow.Left = 40;
             mainWindow.Top = 20;

             base.Initialize();
         }