// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
#nullable disable
 
using System.Runtime.InteropServices;
 
namespace Microsoft.VisualStudio.LanguageServices.Implementation.CodeModel.Interop;
 
internal static class CodeModelInterop
{
    [DllImport("oleaut32.dll")]
    private static extern int VariantChangeType(
        [MarshalAs(UnmanagedType.Struct)] out object pvargDest,
        [In, MarshalAs(UnmanagedType.Struct)] ref object pvargSrc,
        ushort wFlags,
        VarEnum vt);
 
    public static bool CanChangedVariantType(object source, VarEnum variantType)
        => ErrorHandler.Succeeded(VariantChangeType(out _, ref source, 0, variantType));
}