如何更改CPropertySheet的背景色

如何更改CPropertySheet的背景色? 当然这里指的是包括改CPropertyPage和标签的背景颜色.

(1)改CPropertyPage的背景色:

1)创建一个CPropertyPage的子类: class COwnerDrawPropPage : public CPropertyPage;

2)处理它的WM_ERASEBKGND 和 WM_CTLCOLOR消息:

BOOL COwnerDrawPropPage::OnEraseBkgnd(CDC* pDC)

{

    CRect rectClient(0,0,0,0);

    GetClientRect(&rectClient);

    CBrush brush;

    brush.CreateSolidBrush(BACKCOLOR_BLUE);

    pDC->FillRect( &rectClient,& brush);

    return TRUE;

    //return CPropertyPage::OnEraseBkgnd(pDC);

}

HBRUSH COwnerDrawPropPage::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)

{

    //     HBRUSH hbr = CPropertyPage::OnCtlColor(pDC, pWnd, nCtlColor);

    //     return hbr;

    pDC->SetBkColor(BACKCOLOR_BLUE);

    pDC->SetBkMode(TRANSPARENT);

    HBRUSH hbrushBack = ::CreateSolidBrush(BACKCOLOR_BLUE);

    return hbrushBack;      

}

    3)把所有属性页的父类都改为COwnerDrawPropPage.这样就改了属性页的颜色.

(2)改CPropertySheet的背景色, 这里包括两方面: 客户区的颜色, 标签的颜色.

1)改客户区的颜色跟改属性页的一样:

HBRUSH CMyPropertySheet::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)

{

//     HBRUSH hbr = CPropertySheet::OnCtlColor(pDC, pWnd, nCtlColor);

//     return hbr;

    pDC->SetBkColor(BACKCOLOR_BLUE);

    pDC->SetBkMode(TRANSPARENT);

    HBRUSH hbrushBack = ::CreateSolidBrush(BACKCOLOR_BLUE);

    return hbrushBack;    

}

BOOL CMyPropertySheet::OnEraseBkgnd(CDC* pDC)

{

    CRect rectClient(0,0,0,0);

    GetClientRect(&rectClient);

    CBrush brush;

    brush.CreateSolidBrush(BACKCOLOR_BLUE);

    pDC->FillRect( &rectClient,& brush);

    return TRUE;

    //return CPropertySheet::OnEraseBkgnd(pDC);

}

2)改标签的就有一定难度了. 先从CTabCtrl派生一个COwnerDrawTabCtrl, 处理其WM_ERASEBKGND消息. 然后再实现其DrawItem方法,注意不是WM_DRAWITEM!! 而是 void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) .

BOOL COwnerDrawTabCtrl::OnEraseBkgnd(CDC* pDC)

{

    CRect rectClient(0,0,0,0);

    GetClientRect(&rectClient);

    pDC->FillRect( &rectClient,& m_brushBK);

    return TRUE;

    //return CTabCtrl::OnEraseBkgnd(pDC);

}

void COwnerDrawTabCtrl::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)

{

    TCHAR szTabText[64]={0};

    TC_ITEM     tci;

    tci.mask         = TCIF_TEXT;

    tci.pszText     = szTabText;

    tci.cchTextMax   = sizeof(szTabText)-1;

    GetItem( lpDrawItemStruct->itemID,& tci);

    CDC *pDC = CDC::FromHandle(lpDrawItemStruct->hDC);    

    pDC->FillRect(& lpDrawItemStruct->rcItem,& m_brushBK);

    pDC->SetBkColor( BACKCOLOR_BLUE);

    if ((lpDrawItemStruct->itemState & ODS_SELECTED)&&  

        (lpDrawItemStruct->itemAction& (ODA_SELECT | ODA_DRAWENTIRE)))

    {

        //Make the color of text of the selected tab to be BLUE.

        pDC->SetTextColor(RGB( 17, 139, 1));

    }

    //! 文字的位置可能的偏移

    pDC->TextOut(lpDrawItemStruct->rcItem.left+4,

        lpDrawItemStruct->rcItem.top+4,

        tci.pszText,

        lstrlen(tci.pszText));      

}

现在, 万里长征就已经完成了一大截了,最后一步是为CMyPropertySheet 加入一个  COwnerDrawTabCtrl 成员变量, 然后在OnInitDialog() 加入子类化代码:

BOOL CMyPropertySheet::OnInitDialog() 

{

    BOOL bResult = CPropertySheet::OnInitDialog();

    //! 省略原有代码

    //! Jasmine 2011-11-08

    m_tabOwnerDraw.SubclassWindow( GetTabControl()->m_hWnd);

    m_tabOwnerDraw.ModifyStyle(0,TCS_OWNERDRAWFIXED);

    return bResult;

}

这样就把用CPropertySheet和CPropertyPage实现的属性框的背景颜色改好. 

Have a good time!