文本框控件字体，背景色都可以单独设置。

HBRUSH CUDPDlg::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_STATIC_TITLE)
    {
        //设置绘图dc的背景模式为透明模式.
        pDC->SetBkMode(TRANSPARENT);//设置透明窗口.
        
        pDC->SetTextColor(RGB(255,255, 0));//设置文本颜色
        //pWnd->SetFont(cFont);//设置字体
        
        HBRUSH B = CreateSolidBrush(RGB(125,125,255));
        return (HBRUSH) B;//作为约定，返回背景色对应的刷子句柄
        
        //return (HBRUSH)::GetStockObject(RGB(125,125,255)); // 设置背景色
        
        GetDlgItem(IDC_STATIC_TITLE)->GetParent()->RedrawWindow();//不重叠
    }
    if (pWnd->GetDlgCtrlID()==IDC_RECV_LEN1)
    {
        //设置绘图dc的背景模式为透明模式.
    
        pDC->SetTextColor(RGB(255,0, 0));//设置文本颜色
        //pWnd->SetFont(cFont);//设置字体
        HBRUSH B = CreateSolidBrush(RGB(255,255,255));
        return (HBRUSH) B;//作为约定，返回背景色对应的刷子句柄
        GetDlgItem(IDC_RECV_LEN1)->GetParent()->RedrawWindow();//不重叠
    }
    // TODO: Return a different brush if the default is not desired
    return hbr;
}