XNAGameStudio/Samples/UISample_4_0/UISample/SampleGame.cs

//-----------------------------------------------------------------------------
// SampleGame.cs
//
// Microsoft XNA Community Game Platform
// Copyright (C) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------

using System;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.GamerServices;
using Microsoft.Xna.Framework.Graphics;


namespace UserInterfaceSample
{
    public class SampleGame : Microsoft.Xna.Framework.Game
    {
        GraphicsDeviceManager graphics;
        ScreenManager screenManager;

        public SampleGame()
        {
            graphics = new GraphicsDeviceManager(this);
            Content.RootDirectory = "Content";

            // Frame rate is 30 fps by default for Windows Phone.
            TargetElapsedTime = TimeSpan.FromTicks(333333);

            // Disable the status bar
            graphics.IsFullScreen = true;

            screenManager = new ScreenManager(this);
            Components.Add(screenManager);

            // attempt to deserialize the screen manager from disk. if that fails, we add our default screens.
            if (!screenManager.DeserializeState())
            {
                // Activate the first screens.
                screenManager.AddScreen(new BackgroundScreen(), null);
                screenManager.AddScreen(new MainMenuScreen(), null);
            }
        }

        protected override void Draw(GameTime gameTime)
        {
            GraphicsDevice.Clear(Color.Black);
            base.Draw(gameTime);
        }
    }
}