using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

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.Navigation;

using System.Windows.Shapes;

namespace WpfApplication1

{

    /// <summary>

    /// MainWindow.xaml 的交互逻辑

    /// </summary>

    public partial class MainWindow : Window

    {

        MediaElement myPlayer = new MediaElement();

        public MainWindow()

        {

            InitializeComponent();

            myPlayer.Margin = new Thickness(, , , );

            myPlayer.Width = ActualWidth;

            myPlayer.Height = ActualHeight;

            myPlayer.LoadedBehavior = MediaState.Manual;

            var mp4_path = AppDomain.CurrentDomain.BaseDirectory + "video.mp4";

            myPlayer.Source = new Uri(mp4_path, UriKind.RelativeOrAbsolute);

            (Content as Grid).Children.Add(myPlayer);

        }

        void myContent_MouseDoubleClick(object sender, MouseButtonEventArgs e)

        {

            if (FullScreenHelper.IsFullscreen(this))

                FullScreenHelper.ExitFullscreen(this);

            else

                FullScreenHelper.GoFullscreen(this);

        }

        private void Button_Click(object sender, RoutedEventArgs e)

        {

            myPlayer.Play();

        }

        private void Window_SizeChanged(object sender, SizeChangedEventArgs e)

        {

            myPlayer.Width = ActualWidth;

            myPlayer.Height = ActualHeight;

        }

    }

}