Main.cs

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using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;

namespace Test
{
    internal class Main : Game
    {
        public const int MIN_SCREEN_RESOLUTION_WIDTH = 1024;
        public const int MIN_SCREEN_RESOLUTION_HEIGHT = 768;

        public GraphicsDeviceManager GraphicsDeviceManager;

        public Main()
        {
            Content.RootDirectory = "Content";

            GraphicsDeviceManager = new GraphicsDeviceManager(this);
            GraphicsDeviceManager.PreferredBackBufferWidth = MIN_SCREEN_RESOLUTION_WIDTH;
            GraphicsDeviceManager.PreferredBackBufferHeight = MIN_SCREEN_RESOLUTION_HEIGHT;
            GraphicsDeviceManager.IsFullScreen = false;
            GraphicsDeviceManager.PreparingDeviceSettings += PrepareDeviceSettings;

            Window.AllowUserResizing = true;
            IsMouseVisible = true;
        }

        void PrepareDeviceSettings(object sender, PreparingDeviceSettingsEventArgs e)
        {
            e.GraphicsDeviceInformation.GraphicsProfile = GraphicsProfile.Reach;
        }

        protected override void Initialize()
        {
            DrawableGrid grid = new DrawableGrid(this, new SpriteBatch(GraphicsDevice), 700, 700, 40, 40);
            Components.Add(grid);
            grid.Initialize();
        }

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