//File:Window.xaml.cs using System; using System.Collections.Generic; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Shapes; using System.Windows.Threading; using System.Threading; namespace DispatcherExamples { public partial class MyWindow : System.Windows.Window { public MyWindow() { InitializeComponent(); useBeginInvokeButton.Click += new RoutedEventHandler(useBeginInvokeButton_Click); } void useBeginInvokeButton_Click(object sender, RoutedEventArgs e) { ThreadPool.QueueUserWorkItem(delegate { MyDelegateType methodForUiThread = delegate { this.Background = new SolidColorBrush(Color.FromRgb(3,2, 1)); }; this.Dispatcher.BeginInvoke(DispatcherPriority.Normal, methodForUiThread); }); } public delegate void MyDelegateType(); } }