public interface IEnumIDList {

        uint Clone(out IEnumIDList ppenum);

Public Interface IEnumIDList

     Function Clone(ByRef ppenum As IEnumIDList) As Integer

    ///Allows a client to determine the contents of a folder by creating an item identifier enumeration object and returning its IEnumIDList interface.

    /// <param name="ppenumIDList">Address that receives a pointer to the IEnumIDList interface of the enumeration object created by this method. </param>

        '  . Validation can be postponed until the first call to IEnumIDList::Next  

        '  . Use this flag when a user interface might be displayed prior to the first IEnumIDList::Next call