I have the following C++ function exported.  The returned type is a typedef
enum and the 2nd parm passed in is a class type that I defined.
How do I declare the marshalas for the parm and how do I deal with the
return type?  Thanks.

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extern "C" DE_ERRORS __declspec(dllexport)DecodeAsnUser(Blob* pBlob,
CUserContextData *userData)
{
   My Code;
}
---------------------------------------------------------
typedef enum
{
    DE_SUCCESS,
    DE_CONNECTION_LOST,
    DE_UNKNOWN_REQUEST,
    DE_UNKNOWN_LIBRARY,
    DE_UNKNOWN_MSG_VERSION,
    DE_MSG_SEQ_ERROR,
    DE_MEMORY_ALLOCATION_FAILURE,
    DE_ENCODE_MESSAGE_PACKET_FAILURE,
    DE_EXTRACT_MESSAGE_FAILURE,
    DE_SELECT_FAILURE,
    DE_SEND_PACKET_FAILURE,
    DE_BAD_SOCKET,
    DE_RECEIVE_PACKET_FAILURE,
    DE_TRUNCATED_LENGTH_RECEIVED,
    DE_SOCKET_FAILURE,
    DE_FIFO_EMPTY,
    DE_RESPONSE_TIMEOUT,
    DE_LOAD_LIBRARY_FAILURE,
    DE_THREAD_CREATION_FAILURE,
    DE_NULL_SERVER_FUNCTION_TABLE,
    DE_NULL_CLIENT_FUNCTION_TABLE,
    DE_REASSIGNING_CLIENT_FUNCTION_TABLE,
    DE_FIFO_CONDITION_WAIT_FAILURE,
    DE_FIFO_TAIL_IS_NULL_ON_FETCH,
    DE_SIGNAL_THREAD_FAILURE,
    DE_BAD_ARGUMENTS,
    DE_BUFFER_EXHAUSTED,
    DE_RWLOCK_INITIALIZATION_FAILURE,
    DE_WRITE_LOCK_FAILURE,
    DE_READ_LOCK_FAILURE,
    DE_RELEASE_LOCK_FAILURE,
    DE_MUTEX_INITIALIZATION_FAILURE,
    DE_INDEX_INSERT_FAILURE,
    DE_INVALID_ENTRY_TYPE,
    DE_WAITING_CONDITION_FAILURE,
    DE_UNABLE_TO_ACQUIRE_ADS_CONNECTION,
    DE_ROW_INSERT_FAILURE,
    DE_UPDATE_MESSAGE_POST_FAILURE,
    DE_MUTEX_LOCK_FAILURE,
    DE_MUTEX_UNLOCK_FAILURE,
    DE_UNABLE_TO_CREATE_TEMPORARY_ROW,
    DE_UNABLE_TO_GET_USER_LIST_FROM_AD,
    DE_UNABLE_TO_GET_GROUP_LIST_FROM_AD,
    DE_UNABLE_TO_OPEN_CONFIGURATION_FILE
} DE_ERRORS;
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class CUserContextData
{
public:
       
   bool newObject, bWinLogOn, bUnifiedID, symarkEnabled, UIDChanged,
newSyUserContext, NoChanged,
        saved;
    std::wstring SID, shell, homeDir, primaryGroup, symarkUserRef, LoginName,
contextName, groupCN;
   int symarkUID, //Unified User ID
        IID,       //Independant ID
        listViewIndex, groupIndex;

//operator= Overload function
    CUserContextData& CUserContextData::operator=(const CUserContextData&
newUserData)
    {
        if(this != &newUserData)
        {
        newObject = newUserData.newObject;
        bWinLogOn = newUserData.bWinLogOn;
        bUnifiedID = newUserData.bUnifiedID;
        symarkEnabled = newUserData.symarkEnabled;
        UIDChanged = newUserData.UIDChanged;
        newSyUserContext = newUserData.newSyUserContext;
        NoChanged = newUserData.NoChanged;
        saved = newUserData.saved;
        symarkUID = newUserData.symarkUID;
        listViewIndex = newUserData.listViewIndex;
        IID = newUserData.IID;
        groupIndex = newUserData.groupIndex;
           
        contextName = newUserData.contextName;
        groupCN = newUserData.groupCN;
           
        LoginName = newUserData.LoginName;

        shell = newUserData.shell;

        homeDir = newUserData.homeDir;

        primaryGroup = newUserData.primaryGroup;

        symarkUserRef = newUserData.symarkUserRef;
        SID = newUserData.SID;
        }
        return *this;
}//End operator= Overload

//Copy Constructor
CUserContextData::CUserContextData(const CUserContextData &nud)
  :  newObject(nud.newObject), bWinLogOn(nud.bWinLogOn),  
bUnifiedID(nud.bUnifiedID),
  symarkEnabled(nud.symarkEnabled),
UIDChanged(nud.UIDChanged),shell(nud.shell),
 
newSyUserContext(nud.newSyUserContext),NoChanged(nud.NoChanged),saved(nud.saved),
  SID(nud.SID), homeDir(nud.homeDir), primaryGroup(nud.primaryGroup),
  symarkUserRef(nud.symarkUserRef), LoginName(nud.LoginName),
  contextName(nud.contextName), groupCN(nud.groupCN),
symarkUID(nud.symarkUID),
  listViewIndex(nud.UIDChanged), IID(nud.IID), groupIndex(nud.groupIndex)

{
}

//Default Constructor
CUserContextData::CUserContextData(void) :  newObject(false),
bWinLogOn(false),  bUnifiedID(false),
    symarkEnabled(false), UIDChanged(false), newSyUserContext(false),
NoChanged(false),
    saved(false), symarkUID(0), listViewIndex(0), IID(0), groupIndex(-1)

{
}

~CUserContextData(void)
{
}

};
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