深入浅出 CPropertySheet

为了最大限度的发挥属性页的效用，首先让我们先从 CPropertySheet 继承一个新类，取名为 CMyPropSheet.

接着便可以进行下面的各种操作:

一、隐藏属性页默认按钮

隐藏掉Apply应用按钮:

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1.propsheet.m_psh.dwFlags |= PSH_NOAPPLYNOW;

或隐藏掉Cancel取消按钮:

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1.CWnd *pWnd = GetDlgItem( IDCANCEL ); 
2.pWnd->ShowWindow( FALSE );

二、移动属性页按钮

首先，要获取按钮的句柄，然后就可以象对待窗体一样处理它们了. 下面代码先隐藏掉Apply和Help铵钮，再把OK和Cancel按移动到右侧。

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BOOL CMyPropSheet::OnInitDialog ()  
{ 
    BOOL bResult = CPropertySheet::OnInitDialog(); 
  
    int ids [] = {IDOK, IDCANCEL};//, ID_APPLY_NOW, IDHELP }; 
      
    // Hide Apply and Help buttons 
    CWnd *pWnd = GetDlgItem (ID_APPLY_NOW); 
    pWnd->ShowWindow (FALSE); 
    pWnd = GetDlgItem (IDHELP); 
    pWnd->ShowWindow (FALSE); 
      
    CRect rectBtn; 
    int nSpacing = 6;        // space between two buttons... 
  
    for( int i =0; i <  sizeof(ids)/sizeof(int); i++) 
    { 
        GetDlgItem (ids [i])->GetWindowRect (rectBtn); 
          
        ScreenToClient (&rectBtn); 
        int btnWidth = rectBtn.Width(); 
        rectBtn.left = rectBtn.left + (btnWidth + nSpacing)* 2; 
        rectBtn.right = rectBtn.right + (btnWidth + nSpacing)* 2; 
  
        GetDlgItem (ids [i])->MoveWindow(rectBtn); 
    } 
  
      
    return bResult; 
}

下面代码移动所有按钮到右侧，并且重新置属性页为合适的大小.

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BOOL CMyPropSheet::OnInitDialog ()  
{ 
    BOOL bResult = CPropertySheet::OnInitDialog(); 
  
      
    int ids[] = { IDOK, IDCANCEL, ID_APPLY_NOW }; 
      
    CRect rectWnd; 
    CRect rectBtn; 
      
    GetWindowRect (rectWnd); 
    GetDlgItem (IDOK)->GetWindowRect (rectBtn); 
      
    int btnWidth = rectBtn.Width(); 
    int btnHeight = rectBtn.Height(); 
    int btnOffset = rectWnd.bottom - rectBtn.bottom; 
    int btnLeft = rectWnd.right - rectWnd.left; 
  
    rectWnd.bottom = rectBtn.top; 
    rectWnd.right = rectWnd.right + btnWidth + btnOffset; 
    MoveWindow(rectWnd); 
      
    rectBtn.left = btnLeft; 
    rectBtn.right = btnLeft + btnWidth; 
  
    for (int  i = 0; i < sizeof (ids) / sizeof (int); i++) 
    { 
        rectBtn.top = (i + 1) * btnOffset + btnHeight * i; 
        rectBtn.bottom = rectBtn.top + btnHeight; 
        GetDlgItem (ids [i])->MoveWindow (rectBtn); 
    } 
      
    return bResult; 
}

三、改变属性页上的标签文字

首先修改TC_ITEM结构，然后用 SetItem 来修改标签文字，如下代码:

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TC_ITEM item; 
item.mask = TCIF_TEXT; 
item.pszText = "New Label"; 
  
//Change the label of the first tab (0 is the index of the first tab)... 
GetTabControl ()->SetItem (0, &item);

四、改变属性页标签文字的字体属性

代码如下

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1.m_NewFont.CreateFont (14, 0, 0, 0, 800, TRUE, 0, 0, 1, 0, 0, 0, 0, _T("Arial") ); 
2.    GetTabControl()->SetFont (&m_NewFont);

五、在属性页标签上显示位图

可以用 CImageList 建立图像. 用 SetItem 来设置，如下代码所示:

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BOOL CMyPropSheet::OnInitDialog () 
{ 
    BOOL bResult = CPropertySheet::OnInitDialog(); 
  
    m_imageList.Create (IDB_MYIMAGES, 13, 1, RGB(255,255,255)); 
    CTabCtrl *pTabCtrl = GetTabControl (); 
    pTabCtrl->SetImageList (&m_imageList); 
      
    TC_ITEM item; 
    item.mask = TCIF_IMAGE; 
    for (int  i = 0; i < NUMBER_OF_TABS; i++) 
    { 
        item.iImage = i; 
        pTabCtrl->SetItem (i, &item ); 
    } 
  
    return bResult; 
}

六、在属性页左下角显示位图

如下代码所示：

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void CMyPropSheet::OnPaint ()  
{ 
    CPaintDC dc(this); // device context for painting 
      
    int nOffset = 6; 
    // load IDB_BITMAP1 from our resources 
    CBitmap bmp; 
    if (bmp.LoadBitmap (IDB_BITMAP1)) 
    { 
        // Get the size of the bitmap 
        BITMAP bmpInfo; 
        bmp.GetBitmap (&bmpInfo); 
          
        // Create an in-memory DC compatible with the 
        // display DC we''re using to paint 
        CDC dcMemory; 
        dcMemory.CreateCompatibleDC (&dc); 
          
        // Select the bitmap into the in-memory DC 
        CBitmap* pOldBitmap = dcMemory.SelectObject (&bmp); 
          
        // Find a bottom-left point for the bitmap in the client area 
        CRect rect; 
        GetClientRect (&rect); 
        int nX = rect.left + nOffset; 
        int nY = rect.top + (rect.Height () - bmpInfo.bmHeight) - nOffset; 
          
        // Copy the bits from the in-memory DC into the on- 
        // screen DC to actually do the painting. Use the centerpoint 
        // we computed for the target offset. 
        dc.BitBlt (nX, nY, bmpInfo.bmWidth, bmpInfo.bmHeight, &dcMemory,  
            0, 0, SRCCOPY); 
          
        dcMemory.SelectObject (pOldBitmap); 
    } 
  
    // Do not call CPropertySheet::OnPaint() for painting messages 
}

七、在属性页右下角显示3D文字Logo

代码如下:

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void CMyPropSheet::OnPaint ()  
{ 
    / 
    //在TAB按钮旁边显示3D文字提示,jingzhou xu 
    Cstring m_LogoName = “属性页”; 
//  if(m_LogoName == "") 
//      return; 
  
    GetWindowRect(rect); 
    ScreenToClient(rect); 
      
    LOGFONT logFont; 
    ZeroMemory((void*)&logFont,sizeof(logFont)); 
    strcpy(logFont.lfFaceName,"宋体"); 
    logFont.lfHeight = -12; 
    logFont.lfWeight = 400; 
    logFont.lfCharSet = GB2312_CHARSET; 
    logFont.lfOutPrecision = 3; 
    logFont.lfClipPrecision = 2;  
    logFont.lfQuality = 1; 
    logFont.lfPitchAndFamily = 2; 
    m_font.CreateFontIndirect(&logFont); 
    SetFont(&m_font); 
    CFont   *pOldFont = pDC->SelectObject(&m_font); 
  
        rect.left += 6; 
        rect.right -= 6; 
        rect.bottom -= 1; 
        rect.top = rect.bottom - ITEMBUTTON_HEIGHT + 1; 
      
  
    CFont m_LogoFont; 
    CString sLogoString; 
          
    m_LogoFont.CreateFont(rect.Height()*4/5, 0, 0, 0, FW_BOLD, 1, FALSE, FALSE, 
            DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, 
            FIXED_PITCH | FF_ROMAN, "楷体_GB2312"); 
          
    sLogoString = m_LogoName; 
          
    RECT m_rDataBox; 
    CopyRect(&m_rDataBox,&rect); 
          
    TEXTMETRIC tm; 
    pDC->GetTextMetrics(&tm); 
    CFont* oldFont = pDC->SelectObject(&m_LogoFont); 
    CSize sz = pDC->GetTextExtent(sLogoString, sLogoString.GetLength()); 
    //用GetTextExtent来计算字体logo大小，依靠于设备环境，使用logo位于右下角 
    m_rDataBox.left = m_rDataBox.right  - sz.cx - tm.tmAveCharWidth/2;  
    m_rDataBox.top  = m_rDataBox.bottom - sz.cy - tm.tmHeight/5;  
    pDC->SetBkMode(TRANSPARENT); 
    //用3D字体显示，先黑后白，最后再用默认色 
    COLORREF oldColor = pDC->SetTextColor(GetSysColor(COLOR_3DDKSHADOW));  
    pDC->DrawText(sLogoString, sLogoString.GetLength(), &m_rDataBox, DT_VCENTER | DT_SINGLELINE | DT_CENTER); 
    m_rDataBox.left -= tm.tmAveCharWidth;  
    pDC->SetTextColor(GetSysColor(COLOR_3DHILIGHT)); 
    pDC->DrawText(sLogoString, sLogoString.GetLength(), &m_rDataBox, DT_VCENTER | DT_SINGLELINE | DT_CENTER); 
    m_rDataBox.left += 3*tm.tmAveCharWidth/5; 
    pDC->SetTextColor(RGB(0,0,255)); 
    pDC->DrawText(sLogoString, sLogoString.GetLength(), &m_rDataBox, DT_VCENTER | DT_SINGLELINE | DT_CENTER); 
          
    //释放资源 
    pDC->SelectObject(oldFont); 
    pDC->SetTextColor(oldColor);    
    m_LogoFont.DeleteObject(); 
    // 
}

八、在属性页中动态加入其它控件

下面演示如何在左下角加入一Edit控件:

MyPropSheet.h中:

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1.public: 
2.    CEdit m_edit;

MyPropSheet.cpp中:

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BOOL CMyPropSheet::OnInitDialog () 
{ 
    BOOL bResult = CPropertySheet::OnInitDialog (); 
  
      
    CRect rect; 
      
    int nHeight = 24; 
    int nWidth = 120; 
    int nOffset = 6; 
      
    GetClientRect (&rect); 
  
    // Find a bottom-left point for the edit control in the client area 
    int nX = rect.left + nOffset; 
    int nY = rect.top + (rect.Height() - nHeight) - nOffset; 
      
    // finally create the edit control 
    m_Edit.CreateEx (WS_EX_CLIENTEDGE, _T("EDIT"), NULL, 
                     WS_CHILD | WS_VISIBLE | WS_TABSTOP | WS_BORDER,  
        nX, nY, nWidth, nHeight, m_hWnd, 0, 0 ); 
  
    return bResult; 
}