/// <param name="lcid">Identifies the requested locale for any return szDescription of the enumerated CATEGORYINFOs.</param>

        IEnumCATEGORYINFO EnumCategories(uint lcid);

        /// <param name="rgCategoryInfo">

        /// The array of cCategories CATEGORYINFO structures. By providing the same

        /// CATID for multiple CATEGORYINFO structures, multiple locales can be

        void RegisterCategories(uint cCategories, [In, MarshalAs(UnmanagedType.LPArray)] CATEGORYINFO[] rgCategoryInfo);

    public interface IEnumCATEGORYINFO

        int Next(int celt, [Out, In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex=0)]CATEGORYINFO[] rgelt);

        IEnumCATEGORYINFO Clone();

Interface IEnumCATEGORYINFO

    public struct CATEGORYINFO

Structure CATEGORYINFO