<Window x:Class="_360Timer.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Concentric Rings" Width="910" Height="512"> <Canvas Name="MainCanvas" Background="#FFE0E0E0"/> </Window> //File:Window.xaml.cs using System; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Media; using System.Windows.Shapes; using System.Windows.Media.Animation; namespace _360Timer { public partial class Window1 : Window { System.Windows.Threading.DispatcherTimer frameTimer; private int lastTick; private Random rand; public Window1() { InitializeComponent(); this.WindowState = WindowState.Maximized; this.WindowStyle = WindowStyle.None; this.ResizeMode = ResizeMode.NoResize; } void Window1_KeyDown(object sender, System.Windows.Input.KeyEventArgs e) { if (e.Key == System.Windows.Input.Key.Escape) this.Close(); } } }