class ITChartControl : public CXTPChartControl
{
protected :
 DECLARE_MESSAGE_MAP()
 afx_msg void OnLButtonDblClk(UINT nFlags, CPoint point);
 afx_msg void OnRButtonUp(UINT nFlags, CPoint point);
 afx_msg BOOL OnMouseWheel(UINT nFlags, short zDelta, CPoint pt);
};

typedef struct
{
 NMHDR   hdr;            // NMHDR structure that contains additional information about this notification.
 ITChartControl* pControl;  // Pointer to control that caused the event.
 UINT   nFlags;
 CPoint   point;
}
NMHDRCHARTCONTROL, FAR* LPNMHDRCHARTCONTROL;

BEGIN_MESSAGE_MAP(ITChartControl, CXTPChartControl)
 ON_WM_LBUTTONDBLCLK()
 ON_WM_RBUTTONUP()
 ON_WM_MOUSEWHEEL()
END_MESSAGE_MAP()

BOOL ITChartControl::OnMouseWheel(UINT nFlags, short zDelta, CPoint pt)
{
 return CXTPChartControl::OnMouseWheel(nFlags, -zDelta, pt);  // Inverse Zoom !
}

void ITChartControl::OnLButtonDblClk(UINT nFlags, CPoint point)
{
 CXTPChartControl::OnLButtonDblClk(nFlags, point);

 NMHDRCHARTCONTROL notify;
 notify.hdr.hwndFrom = m_hWnd;
 notify.hdr.code = NM_DBLCLK;
 notify.hdr.idFrom = GetDlgCtrlID();
 notify.nFlags = nFlags;
 notify.point = point;
 notify.pControl = this;

 GetOwner()->SendMessage(WM_NOTIFY, (WPARAM)notify.hdr.idFrom, (LPARAM)&notify);
}

void ITChartControl::OnRButtonUp(UINT nFlags, CPoint point)
{
 CXTPChartControl::OnRButtonUp(nFlags, point);

 NMHDRCHARTCONTROL notify;
 notify.hdr.hwndFrom = m_hWnd;
 notify.hdr.code = NM_RCLICK;
 notify.hdr.idFrom = GetDlgCtrlID();
 notify.nFlags = nFlags;
 notify.point = point;
 notify.pControl = this;

 GetOwner()->SendMessage(WM_NOTIFY, (WPARAM)notify.hdr.idFrom, (LPARAM)&notify);
}