Avalonia/samples/interop/NativeEmbedSample/MainWindow.axaml

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:nativeEmbedSample="clr-namespace:NativeEmbedSample"
        x:Class="NativeEmbedSample.MainWindow"
        MinWidth="500" MinHeight="300"
        Width="1024" Height="800"
        Title="Native embedding sample">
  <nativeEmbedSample:MainView />
</Window>