ComboBox = NULL;
m_nMaxCount = 8;
m_aInfo.SetSize(0,8);
m_nMousePos = -1;
m_nBeginShow = 0;
}

CWndForACComboBox::~CWndForACComboBox()
{

}


BEGIN_MESSAGE_MAP(CWndForACComboBox, CWnd)
file://{{AFX_MSG_MAP(CWndForACComboBox)
ON_WM_DESTROY()
ON_WM_PAINT()
ON_WM_KEYDOWN()
ON_WM_LBUTTONUP()
ON_WM_MOUSEWHEEL()
ON_WM_KILLFOCUS()
ON_WM_MOUSEMOVE()
ON_WM_VSCROLL()
file://}}AFX_MSG_MAP
END_MESSAGE_MAP()


/////////////////////////////////////////////////////////////////////////////
// CWndForACComboBox message handlers

BOOL CWndForACComboBox::Create(CComboBox * pWnd)
{
ASSERT(pWnd);

CRect rect;
CWnd * pParentWnd = pWnd->GetParent();

pWnd->GetWindowRect(&rect);
// pParentWnd->ScreenToClient(&rect);

BOOL bRet = CWnd::CreateEx( WS_EX_TOPMOST | WS_EX_TOOLWINDOW,\
  lpWndCls, NULL, WS_POPUP | WS_VSCROLL, rect.left, rect.top, rect.Width(), rect.Height(),
  pParentWnd->GetSafeHwnd(), NULL, NULL);

if(bRet)
  SetOwner(pParentWnd);

m_pComboBox = pWnd;
return bRet;
}

void CWndForACComboBox::OnDestroy()
{
CWnd::OnDestroy();

m_aInfo.RemoveAll();
}

void CWndForACComboBox::OnPaint()
{
CRect rect;
CFont * pFont;
LOGFONT logFont;

if(m_pComboBox)
{
  ASSERT(::IsWindow(m_pComboBox->GetSafeHwnd()));

  CWnd * pParentWnd = m_pComboBox->GetParent();
  m_pComboBox->GetWindowRect(&rect);
  pFont = pParentWnd->GetFont();
  ASSERT(pFont);
  pFont->GetLogFont(&logFont);

  if(logFont.lfHeight < 0) logFont.lfHeight = -logFont.lfHeight;
  if(m_aInfo.GetSize() > m_nMaxCount)
  {
   logFont.lfWidth = m_nMaxCount * logFont.lfHeight;
  }
  else
  {
   logFont.lfWidth = m_aInfo.GetSize() * logFont.lfHeight;
  }
  if(logFont.lfWidth + rect.bottom > ::GetSystemMetrics(SM_CYSCREEN))
  {
   rect.bottom = rect.top;
   rect.top = rect.bottom - logFont.lfWidth - 2;
   if(rect.top < 0)
    rect.top = 0;
  }
  else
  {
   rect.top = rect.bottom;
   rect.bottom = rect.top + logFont.lfWidth + 2;
  }
  rect.right = rect.left + m_pComboBox->GetDroppedWidth();
//  pParentWnd->ScreenToClient(&rect);
  MoveWindow(&rect);
  if(rect.Height() < m_aInfo.GetSize() * logFont.lfHeight)
  {
   TRACE("%d   %d\r\n",rect.Height(),m_aInfo.GetSize() * logFont.lfHeight);
   SCROLLINFO info;

   info.cbSize = sizeof(info);
   info.fMask = SIF_PAGE;
   info.nPage = rect.Height() / logFont.lfHeight;
   CWnd::SetScrollRange(SB_VERT,0,m_aInfo.GetSize() - 1,FALSE);
   CWnd::ShowScrollBar(SB_VERT,TRUE);
   CWnd::SetScrollInfo(SB_VER