ODBC : problem with bookmark

Hi,

I just begin to use PostGRE with ODBC on Win2000/VC++6

I arrive to this kind of things

void CODBCDlg::OnOpen()
{
    CString sql;
    CComptes cpt(&m_fBase);
    m_fBase.Open("ODBC;DSN=KEOPS");

    sql.Format("SELECT * FROM [Comptes] WHERE [Type]=1",
        cpt.GetDefaultSQL());

    cpt.Open(cpt.snapshot,sql,CRecordset::useBookmarks);
    cpt.AddNew();
    cpt.m_Type=4;
    cpt.m_Etat=2;
    cpt.m_Nom="DD";
    cpt.m_Date_ouverture=COleDateTime::GetCurrentTime();
    cpt.Update();
    CDBVariant mark;
    cpt.GetBookmark(mark);

    cpt.Close();
    m_fBase.Close();
}

The Update works, but i have an error on GetBookmark
Error 24000 : Invalid cursor state

What can I do ?

--
André THEVENIN
Hortus Technologies
<andre.thevenin@hortus.fr>
04 99 61 47 80
06 19 01 48 20

J'ai mis toute ma vie à savoir dessiner comme un enfant.

(Pablo Picasso)