wpf全屏播放视频示例源码(MediaElement)

双击之后可全屏播放

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(1, 1, 1, 1); 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; } }}