要让窗口控件背景透明只需响应CtlColor消息并返回透明画刷就行。

HBRUSH CXXXDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor){    HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);        // TODO: Change any attributes of the DC here    if(pWnd->GetDlgCtrlID() == IDC_LIST1 )    {        pDC->SetTextColor(RGB(255, 0, 0));        pDC->SetBkMode( TRANSPARENT ) ;           return (HBRUSH)GetStockObject(NULL_BRUSH);    }    // TODO: Return a different brush if the default is not desired    return hbr;}