windows自带的颜色编辑器居中

void xxx::SetOSDColor(CLabelUI * pLabel)
{
    COLORREF color = RGB(1*255, 1*255, 1*255);
    CColorDialog cdlg(color, CC_ENABLEHOOK|CC_FULLOPEN); // 设置默认颜色

    CRect* pRect =  new CRect(0,0,800,500);

    //    cdlg.m_cc.Flags |= CC_ENABLEHOOK|CC_FULLOPEN | CC_RGBINIT;
    cdlg.m_cc.lpfnHook = CdlgHook;
    cdlg.m_cc.lCustData = (LONG_PTR)pRect;

    if(cdlg.DoModal() == IDOK)
    {

        color = cdlg.GetColor();
        int dColorRed = GetRValue(color);
        int dColorGreen = GetGValue(color);
        int dColorBlue = GetBValue(color);



        COLORREF getColor = dColorBlue + dColorGreen * 256 + dColorRed * 256 * 256;
        getColor |= 0xFF000000;
        pLabel->SetBkColor(getColor);

    }
}

UINT_PTR CALLBACK CdlgHook(  HWND hdlg,UINT uiMsg,WPARAM /*wParam*/, LPARAM lParam)
{
    if(uiMsg == WM_INITDIALOG)
    {
        CHOOSECOLOR *pcc = (CHOOSECOLOR*)lParam;
        CRect *rc = (CRect*)pcc->lCustData;
        if(rc)
        {
            SetWindowPos(hdlg,HWND_TOP,rc->right,rc->bottom,
                0,0,SWP_NOZORDER|SWP_NOSIZE);
        }
        SetWindowText(hdlg, _T("请选择一种颜色"));
        delete rc;
    }
    return 0;
}

通过重写回调函数，使用SetWindowsPos设置弹出的对话框所显示的位置！！