using System.Runtime.InteropServices; namespace Interop.Lmx; [StructLayout(LayoutKind.Sequential, Pack = 8)] [Guid("E671ED95-A301-4761-97F9-103D15CBCDF7")] public struct ItemActiveResponse { public ulong ItemId; public ulong userData; [MarshalAs(UnmanagedType.Error)] public int status; }