如何阻止 Grid 控件中的 VideoView 控件使用 LibVLCSharp 库打开新的 window？

Question

I'm using the LibVLCSharp.WPF to play a video using the VideoView control. I've binded MediaPlayer and Visibility in my ViewModel . I can get it to play the video but rather than be embedded inside the Grid control it creates and opens a new window and plays the video there. I've searched and saw there is an airspace issue but maybe there is something I'm doing wrong to keep the video from playing inside the grid like when you place an image in an image control.

The player is inside a UserControl that is inside the MainWindow.

XAML

<Grid>    
    <media:VideoView x:Name="MediaPlayer"
        VerticalAlignment="Center"
        HorizontalAlignment="Center"
        MediaPlayer="{Binding MyMediaPlayer}"
        Visibility="{Binding IsMediaPlayerVisible, Converter={StaticResource VisConverter}}"/>
</Grid>

ViewModel

void StartVideo()
{
    IsMediaPlayerVisible = true;

    Core.Initialize();
    using (_libVLC = new LibVLC())
    {
        MyMediaPlayer = new MediaPlayer(_libVLC);
        MyMediaPlayer.Media = new Media(_libVLC, new Uri(@"path\to\media\file"));
        MyMediaPlayer.Play();
    }
}

Can I embed the VideoView like a Image control inside a Grid?

Answer 1

Please always share a full minimal sample. Your Q is missing most of the code.

LibVLC will create a new Windows when the Window provided (eg the VideoView here) isn't ready or fully initialized.

As a rule of thumb, always start with the official libvlcsharp samples. https://code.videolan.org/videolan/LibVLCSharp/-/blob/3.x/samples/LibVLCSharp.WPF.Sample/Controls.xaml.cs

public Controls(Example1 Parent)
{
    parent = Parent;

    InitializeComponent();

    // we need the VideoView to be fully loaded before setting a MediaPlayer on it.
    parent.VideoView.Loaded += VideoView_Loaded;
    PlayButton.Click += PlayButton_Click;
    StopButton.Click += StopButton_Click;
    Unloaded += Controls_Unloaded;
}

private void VideoView_Loaded(object sender, RoutedEventArgs e)
{
    _libVLC = new LibVLC(enableDebugLogs: true);
    _mediaPlayer = new MediaPlayer(_libVLC);

    parent.VideoView.MediaPlayer = _mediaPlayer;
}