// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
#nullable enable
 
using Windows.Win32.System.Com;
 
namespace System.Windows.Forms.Tests;
 
/// <summary>
///  Custom <see cref="AxHost"/> that directly uses a <see cref="ComClassFactory"/>.
/// </summary>
public unsafe class DynamicAxHost : AxHost
{
    private readonly ComClassFactory _factory;
 
    internal DynamicAxHost(ComClassFactory factory) : base(factory.ClassId.ToString("D"), 0)
    {
        _factory = factory;
    }
 
    protected override object CreateInstanceCore(Guid clsid)
    {
        Debug.Assert(clsid == _factory.ClassId);
        _factory.CreateInstance(out object unknown).ThrowOnFailure();
        return unknown;
    }
}