What message is posted when moving mouse over CEdit?

What message is posted when moving mouse over CEdit?

I would like to implament a tooltio which is displayed when the mouse
is moved over a control derived of CEdit. Therefore I would like to
ask you if someone know what message I have to capture in order to
call my finction displayinn the tooltip? Can someone help?

And perhaps someone knows what should be done to enable tooltips for
controls derived of CEdit? I have a dialog and implement the following
method:

BOOL COptionPricingFooterForm::OnToolTipNotify(UINT id, NMHDR *pNMHDR,
LRESULT *pResult)

everything works fine as long as my memebers are of type CEdit.
However, when I swich to CColourEdit, which is implemented in the
following way:

class CColourEdit : public CEdit
{
    DECLARE_DYNAMIC(CColourEdit)

public:
    static eRGBColour GoodColour;
    static eRGBColour WrongColour;

    CColourEdit();
    virtual ~CColourEdit();

    void SetBkColor(COLORREF crColor);
    void SetTextColor(COLORREF crColor);
    BOOL SetReadOnly(BOOL flag = TRUE);
    COLORREF GetBkColor() const;
    COLORREF GetTextColor() const;
    void MarkAsGood();
    void MarkAsWrong();
    void AdjustColor(double dval);
    BOOL OnToolTipNotify(UINT id, NMHDR *pNMHDR, LRESULT *pResult);

protected:
    CBrush m_brBkgnd; // Holds Brush Color for the Edit Box
    COLORREF m_crBkColor; // Holds the Background Color for the Text
    COLORREF m_crTextColor; // Holds the Color for the Text

public:
    virtual BOOL PreTranslateMessage(MSG* pMsg);
    afx_msg HBRUSH CtlColor(CDC* pDC, UINT nCtlColor);

    DECLARE_MESSAGE_MAP()
};

The tooltip no longer works.

Could someone help me with this???

Cheers