让CListCtrl的SubItem也具有编辑功能

要重载一个文本框，然后在LVN_BEGINLABELEDIT时改变文本框位置。
CInEdit m_InEdit;

    if( ( GetStyle() & LVS_TYPEMASK ) == LVS_REPORT && ( m_nEditSubItem != 0 ) )
    {
        HWND    hwndEdit;
        CRect    rtBound;
        CString strText;

        hwndEdit = (HWND)SendMessage( LVM_GETEDITCONTROL );
        GetSubItemRect( pDispInfo->item.iItem, m_nEditSubItem, LVIR_LABEL, rtBound );
        m_InEdit.SubclassWindow( hwndEdit );
        m_InEdit.m_left = rtBound.left;
        strText = GetItemText( pDispInfo->item.iItem, m_nEditSubItem );
        m_InEdit.SetWindowText( strText );
    }

void CInEdit::OnWindowPosChanging(WINDOWPOS FAR* lpwndpos)
{
    CRect rtClient;

    lpwndpos->x = m_left;  // m_left在LVN_BEGINLABELEDIT中设置

    CEdit::OnWindowPosChanging(lpwndpos);
   
    // TODO: Add your message handler code here
}