void CGroupFormatBar::OnLvnItemchangedList(NMHDR *pNMHDR, LRESULT *pResult)

{

LPNMLISTVIEW pNMLV = reinterpret_cast<LPNMLISTVIEW>(pNMHDR);

if ((pNMLV->uChanged & LVIF_STATE) && (pNMLV->uNewState & LVIS_SELECTED)) 

{

// select changed

}

*pResult = 0;

}