How do I open a window on a new thread?

Question

I have a options window and a window that displays color based on these options and Kinect data. So far everything\'s on one thread (as far as I know; I haven\'t done any thread

Answer 1

You need to call Show() on the same thread that the window is created on - that's why you are getting the error. Then you also need to start a new Dispatcher instance to get the runtime to manage the window.

private void launchViewerThread_Click(object sender, RoutedEventArgs e)
{
    Thread viewerThread = new Thread(delegate()
    {
        viewer = new SkeletalViewer.MainWindow();
        viewer.Show();
        System.Windows.Threading.Dispatcher.Run();
    });

    viewerThread.SetApartmentState(ApartmentState.STA); // needs to be STA or throws exception
    viewerThread.Start();
}

See the Multiple Windows/Multiple Threads example at: http://msdn.microsoft.com/en-us/library/ms741870.aspx