Windows CE开发EVC简单功能代码，高手看看,谢谢

kumelon

Windows CE开发EVC简单功能代码，高手看看,谢谢 [复制链接]

下面代码主要实现滑动条设置RGB颜色功能，（窗口就三个滑动条：RED,GREEN,BLUE）为什么我的窗口看不到显示的颜色。
BOOL CSliderUseDlg::OnInitDialog()
{
        CSliderCtrl *pSliderRed=(CSliderCtrl*)GetDlgItem(IDC_SLIDER_RED);
        ASSERT(pSliderRed!=NULL);
        pSliderRed->SetRange(0,255);
        pSliderRed->SetPos(128);


        CSliderCtrl *pSliderGreen=(CSliderCtrl*)GetDlgItem(IDC_SLIDER_GREEN);
        ASSERT(pSliderGreen!=NULL);
        pSliderGreen->SetRange(0,255);
        pSliderGreen->SetPos(128);

        CSliderCtrl *pSliderBlue=(CSliderCtrl*)GetDlgItem(IDC_SLIDER_BLUE);
        ASSERT(pSliderBlue!=NULL);
        pSliderBlue->SetRange(0,255);
        pSliderBlue->SetPos(128);

        CDialog::OnInitDialog();


   
        // Set the icon for this dialog.  The framework does this automatically
        //  when the application's main window is not a dialog
        SetIcon(m_hIcon, TRUE);                        // Set big icon
        SetIcon(m_hIcon, FALSE);                // Set small icon
       
        CenterWindow(GetDesktopWindow());        // center to the hpc screen

        // TODO: Add extra initialization here
       
        return TRUE;  // return TRUE  unless you set the focus to a control

       
}



void CSliderUseDlg::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar *pScrollBar)
{
int iRed,iGreen,iBlue;
if((pScrollBar->GetDlgCtrlID()==IDC_SLIDER_RED)||(pScrollBar->GetDlgCtrlID()==IDC_SLIDER_GREEN)||(pScrollBar->GetDlgCtrlID()==IDC_SLIDER_BLUE))
{
        CSliderCtrl *pSliderRed=(CSliderCtrl*)GetDlgItem(IDC_SLIDER_RED);
        CSliderCtrl *pSliderGreen=(CSliderCtrl*)GetDlgItem(IDC_SLIDER_GREEN);
        CSliderCtrl *pSliderBlue=(CSliderCtrl*)GetDlgItem(IDC_SLIDER_BLUE);
        iRed=pSliderRed->GetPos();
        iGreen=pSliderGreen->GetPos();
        iBlue=pSliderBlue->GetPos();
}
   
        UpdateData(TRUE);
        CBrush colorBrush;
        COLORREF clRGB;
       
        clRGB =RGB(iRed,iGreen,iBlue);
        CClientDC * pClientDC;
        pClientDC= new CClientDC(this);
        colorBrush.CreateSolidBrush(clRGB);
        CRect rect(80,120,160,200);
        pClientDC->FillRect(rect,&colorBrush);
        delete pClientDC;
        CDialog::OnHScroll(nSBCode,nPos,pScrollBar);
}