播放视频黑色矩形

Question

我必须播放视频演示时，用户不触摸鼠标几秒钟。

<Window x:Class="IHM.Animation" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" ResizeMode="NoResize" WindowState="Maximized" WindowStyle="None" WindowStartupLocation="CenterScreen" > 
    <Grid> 
     <MediaElement HorizontalAlignment="Left" Name="video" Height="221" Margin="160,255,0,0" VerticalAlignment="Top" Width="436" /> 
    </Grid> 
</Window> 

对于CSHARP类，我有这样的：

public partial class Animation : Window 
{ 
    public Animation() 
    { 
     InitializeComponent(); 

     MediaPlayer player = new MediaPlayer(); 
     player.Open(new Uri(@"airplane.mpg", UriKind.Relative)); 
     VideoDrawing drawing = new VideoDrawing {Rect = new Rect(0, 0, System.Windows.SystemParameters.PrimaryScreenHeight, System.Windows.SystemParameters.PrimaryScreenWidth)}; 
     player.Play(); 
     DrawingBrush brush = new DrawingBrush(drawing); 
     Background = brush; 
     MouseMove += (sender, args) => 
     { 
      player.Stop(); 
      Close(); 
     }; 
    player.MediaEnded += (sender, args) => Close(); 
    } 
} 

但是，我有没有视频的儿子或形象。URI一个黑色矩形是正确的，但它不工作。

为什么视频无法正常工作，我该如何解决它？

Answer 1

我没有看到你实际上将视觉添加到UI。它只是在代码隐藏中创建和运行。

更新答：

MediaPlayer player = new MediaPlayer(); 

public Window1() { 
    InitializeComponent(); 
    player.Open(new Uri("airplane.mpg", UriKind.Relative)); 
    VideoDrawing drawing = new VideoDrawing {Rect = new Rect(0, 0, 800, 600), Player = player}; 
    player.Play(); 
    DrawingBrush brush = new DrawingBrush(drawing); 
    Background = brush; 
    player.MediaOpened += (sender, args) => MouseMove += OnMouseMove; 
    player.MediaEnded += (sender, args) => { 
    MouseMove -= OnMouseMove; 
    Close(); 
    }; 
} 

private void OnMouseMove(object sender, MouseEventArgs mouseEventArgs) { 
    player.Stop(); 
    Close(); 
} 

更新：

Sample Download Link

另一个更新：

所以这个问题也与具有MouseMove事件触发太快。在MediaOpened事件对此问题进行排序后，将其切换为仅捕获MouseEvents。