File: System\Runtime\InteropServices\Marshalling\ComExposedClassAttribute.cs
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Project: src\src\libraries\System.Runtime.InteropServices\src\System.Runtime.InteropServices.csproj (System.Runtime.InteropServices)
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
namespace System.Runtime.InteropServices.Marshalling
{
    /// <summary>
    /// An attribute to mark this class as a type whose instances should be exposed to COM.
    /// </summary>
    /// <typeparam name="T">The type that provides information about how to expose the attributed type to COM.</typeparam>
    [AttributeUsage(AttributeTargets.Class, Inherited = false)]
    [CLSCompliant(false)]
    public sealed class ComExposedClassAttribute<T> : Attribute, IComExposedDetails
        where T : IComExposedClass
    {
        /// <inheritdoc cref="IComExposedDetails.GetComInterfaceEntries(out int)" />
        public unsafe ComWrappers.ComInterfaceEntry* GetComInterfaceEntries(out int count) => T.GetComInterfaceEntries(out count);
    }
}