void CObjFieldCombox::InitObj
{
......
//DWORD dwStyle = CBS_AUTOHSCROLL|CBS_DROPDOWNLIST|WS_VSCROLL|WS_CHILD|WS_CLIPCHILDREN|WS_CLIPSIBLINGS|WS_TABSTOP|WS_VISIBLE|WS_BORDER;
DWORD dwStyle = CBS_AUTOHSCROLL|CBS_DROPDOWN|WS_VSCROLL|WS_CHILD|WS_CLIPCHILDREN|WS_CLIPSIBLINGS|WS_TABSTOP|WS_VISIBLE|WS_BORDER;
GetWnd()->Create(dwStyle, rc, m_pPage->m_pWnd, ID_OBJINIT + nTabIndex);
GetWnd()->GetWindowRect(&m_rcOrgSite);
m_pPage->m_pWnd->ScreenToClient(&m_rcOrgSite);
......
}