美化VC界面(用户登录界面)

VC开发程序单调的界面相信大家都是深有感触，提到界面美化编程，人们都会说做界面不要用VC写，太难了。
一句俗语：难者不会，会者不难。VC的美化界面编程并没有人们想像的那么难。这篇文章是我写的一个用户登录界面，但界面被我美化了，我将一步一步的来讲解它的美化界面的实现步骤。相信有了这篇文章，你的VC界面从此也能绚丽多彩。

实现步骤：

第一步：美化界面的非客户区(重绘标题栏和界面边框)。
关键代码如下：
// 函 数 名：DrawTitleBar
// 功能描述：绘制标题栏、边框颜色，绘制标题内容、图标和按钮
// 输入参数：pDC：设备指针
// 输出参数：void
// 创建日期：2006-2-20
// 修改日期：2006-2-20
// 作 者：joinclear
// 附加说明：无
void CTitleBarColorDlg::DrawTitleBar(CDC *pDC)
{
    if (m_hWnd)
    {
        CBrush Brush(RGB(187,200,143));
        CBrush* pOldBrush = pDC->SelectObject(&Brush);

        CRect rtWnd, rtTitle, rtButtons;
        GetWindowRect(&rtWnd);
        
        //取得标题栏的位置
         //SM_CXFRAME 窗口边框的边缘宽度
         //SM_CYFRAME 窗口边框的边缘高度
         //SM_CXSIZE 窗口标题栏宽度
          //SM_CYSIZE 窗口标题栏高度
        rtTitle.left = GetSystemMetrics(SM_CXFRAME);
        rtTitle.top = GetSystemMetrics(SM_CYFRAME);
        rtTitle.right = rtWnd.right - rtWnd.left - GetSystemMetrics(SM_CXFRAME);
        rtTitle.bottom = rtTitle.top + GetSystemMetrics(SM_CYSIZE);

        CPoint point;
        //填充顶部框架
        point.x = rtWnd.Width();                        
        point.y = GetSystemMetrics(SM_CYSIZE) + GetSystemMetrics(SM_CYFRAME) + 0;
        pDC->PatBlt(0, 0, point.x, point.y, PATCOPY);
        //填充左侧框架
        point.x = GetSystemMetrics(SM_CXFRAME) -1;
        point.y = rtWnd.Height()- 1;
        pDC->PatBlt(0, 0, point.x, point.y, PATCOPY);
        //填充底部框架
        point.x = rtWnd.Width();
        point.y = GetSystemMetrics(SM_CYFRAME);
        pDC->PatBlt(0, rtWnd.Height()-point.y, point.x, point.y, PATCOPY);
        //填充右侧框架
        point.x = GetSystemMetrics(SM_CXFRAME);
        point.y = rtWnd.Height();
        pDC->PatBlt(rtWnd.Width()-point.x, 0, point.x, point.y, PATCOPY);        
        
        //重画标题栏图标
        m_rtIcon.left = rtTitle.left ;
        m_rtIcon.top = rtTitle.top;
        m_rtIcon.right = m_rtIcon.left + 16;
        m_rtIcon.bottom = m_rtIcon.top + 15;
        ::DrawIconEx(pDC->m_hDC, m_rtIcon.left, m_rtIcon.top, AfxGetApp()->LoadIcon(IDR_MAINFRAME),
            m_rtIcon.Width(), m_rtIcon.Height(), 0, NULL, DI_NORMAL);
        m_rtIcon.OffsetRect(rtWnd.TopLeft());
    
        CBitmap* pBitmap = new CBitmap;
        CBitmap* pOldBitmap;
        CDC* pDisplayMemDC=new CDC;
        pDisplayMemDC->CreateCompatibleDC(pDC);
        
        //重画关闭button
        rtButtons.left = rtTitle.right - 16;
        rtButtons.top = rtTitle.top - 1;
        rtButtons.right = rtButtons.left + 16;
        rtButtons.bottom = rtButtons.top + 15;
        pBitmap->LoadBitmap(IDB_EXIT_FOCUS);
        pOldBitmap=(CBitmap*)pDisplayMemDC->SelectObject(pBitmap);
        pDC->BitBlt(rtButtons.left, rtButtons.top, rtButtons.Width(), rtButtons.Height(), pDisplayMemDC, 0,

0, SRCCOPY);
        pDisplayMemDC->SelectObject(pOldBitmap);
        m_rtButtExit = rtButtons;
        m_rtButtExit.OffsetRect(rtWnd.TopLeft());
        pBitmap->DeleteObject();
        
        //重画最大化/恢复button
        rtButtons.right = rtButtons.left - 3;
        rtButtons.left = rtButtons.right - 16;
        if (IsZoomed())
            pBitmap->LoadBitmap(IDB_RESTORE_NORMAL);
        else
            pBitmap->LoadBitmap(IDB_MAX_NORMAL);
        pOldBitmap=(CBitmap*)pDisplayMemDC->SelectObject(pBitmap);
        pDC->BitBlt(rtButtons.left, rtButtons.top, rtButtons.Width(), rtButtons.Height(), pDisplayMemDC, 0,

0, SRCCOPY);
        pDisplayMemDC->SelectObject(pOldBitmap);
        m_rtButtMax = rtButtons;
        m_rtButtMax.OffsetRect(rtWnd.TopLeft());
        pBitmap->DeleteObject();
        
        //重画最小化button
        rtButtons.right = rtButtons.left - 3;
        rtButtons.left = rtButtons.right - 16;
        pBitmap->LoadBitmap(IDB_MIN_NORMAL);
        pOldBitmap=(CBitmap*)pDisplayMemDC->SelectObject(pBitmap);
        pDC->BitBlt(rtButtons.left, rtButtons.top, rtButtons.Width(), rtButtons.Height(), pDisplayMemDC, 0,

0, SRCCOPY);
        pDisplayMemDC->SelectObject(pOldBitmap);
        m_rtButtMin = rtButtons;
        m_rtButtMin.OffsetRect(rtWnd.TopLeft());
        pBitmap->DeleteObject();

        //重画caption
        int nOldMode = pDC->SetBkMode(TRANSPARENT);
        COLORREF clOldText=pDC->SetTextColor(RGB(255, 255, 255));
        
        CFont m_captionFont;
        m_captionFont.CreateFont(
            18, // 字体的高度            
            0, // 字体的宽度
            0, // 字体显示的角度
            0, // 字体的角度
            FW_BOLD, // 字体的磅数
            FALSE, // 斜体字体
            FALSE, // 带下划线的字体
            0, // 带删除线的字体
            ANSI_CHARSET, // 所需的字符集
            OUT_DEFAULT_PRECIS, // 输出的精度
            CLIP_DEFAULT_PRECIS, // 裁减的精度
            DEFAULT_QUALITY, // 逻辑字体与输出设备的实际字体之间的精度
            DEFAULT_PITCH | FF_SWISS, // 字体间距和字体集
            _T("Arial")); // 字体名称
            
        CFont* pOldFont = NULL;            
        pOldFont = pDC->SelectObject(&m_captionFont);
        
        rtTitle.left += m_rtIcon.Width ()+3;
        rtTitle.top = rtTitle.top;
        rtTitle.bottom = rtTitle.top + 30;
        CString m_strTitle;
        GetWindowText(m_strTitle);
        pDC->DrawText(m_strTitle, &rtTitle, DT_LEFT);
        pDC->SetBkMode(nOldMode);
        pDC->SetTextColor(clOldText);
        
        ReleaseDC(pDisplayMemDC);
        delete pDisplayMemDC;
        delete pBitmap;
    }
}

还有在非客户区 绘制鼠标的消息。分别为：
void CTitleBarColorDlg::OnNcLButtonDown(UINT nHitTest, CPoint point)
{
    if (m_rtButtExit.PtInRect(point)) //关闭
        SendMessage(WM_CLOSE);
    else if (m_rtButtMin.PtInRect(point)) //最小化
        SendMessage(WM_SYSCOMMAND, SC_MINIMIZE, MAKELPARAM(point.x, point.y));
    else if (m_rtButtMax.PtInRect(point))
    {
        if (IsZoomed()) //最大化
        {
            SendMessage(WM_SYSCOMMAND, SC_RESTORE, MAKELPARAM(point.x, point.y));
            CRect rtWnd;
            GetWindowRect(&rtWnd);
            CRgn rgn;
            rgn.CreateRoundRectRgn(0,0,rtWnd.Width(),rtWnd.Height(),5,5);
            SetWindowRgn((HRGN)rgn,true);
            Invalidate();
        }
        else
        {
            SendMessage(WM_SYSCOMMAND, SC_MAXIMIZE, MAKELPARAM(point.x, point.y));
            
            CRect rtWnd;
            GetWindowRect(&rtWnd);
            CRgn rgn;
            rgn.CreateRoundRectRgn(0,0,rtWnd.Width(),rtWnd.Height(),5,5);
            SetWindowRgn((HRGN)rgn,true);
            Invalidate();
        }
    }
    else if (!IsZoomed())
        Default();
}
void CTitleBarColorDlg::OnNcMouseMove(UINT nHitTest, CPoint point)
{
    CWindowDC dc(this);
    CWindowDC* pDC = &dc;
    CDC* pDisplayMemDC=new CDC;
    pDisplayMemDC->CreateCompatibleDC(pDC);
    CBitmap* pBitmap = new CBitmap;
    CBitmap* pOldBitmap;
    CRect rtWnd, rtButton;
    
    if (pDC)
    {
        GetWindowRect(&rtWnd);
        
        //关闭button
        if (m_rtButtExit.PtInRect(point))
            pBitmap->LoadBitmap(IDB_EXIT_NORMAL);
        else
            pBitmap->LoadBitmap(IDB_EXIT_FOCUS);
        rtButton = m_rtButtExit;
        rtButton.OffsetRect(-rtWnd.left, -rtWnd.top);
        pOldBitmap=(CBitmap*)pDisplayMemDC->SelectObject(pBitmap);
        pDC->BitBlt(rtButton.left, rtButton.top, rtButton.Width(), rtButton.Height(), pDisplayMemDC, 0, 0,

SRCCOPY);
        pDisplayMemDC->SelectObject(pOldBitmap);
        pBitmap->DeleteObject();
        
        //最大化/恢复button
        if (m_rtButtMax.PtInRect(point))
        {
            if (IsZoomed())
                pBitmap->LoadBitmap(IDB_RESTORE_FOCUS);
            else
                pBitmap->LoadBitmap(IDB_MAX_FOCUS);
        }
        else
        {
            if (IsZoomed())
                pBitmap->LoadBitmap(IDB_RESTORE_NORMAL);
            else
                pBitmap->LoadBitmap(IDB_MAX_NORMAL);
        }
        rtButton = m_rtButtMax;
        rtButton.OffsetRect(-rtWnd.left, -rtWnd.top);
        pOldBitmap=(CBitmap*)pDisplayMemDC->SelectObject(pBitmap);
        pDC->BitBlt(rtButton.left, rtButton.top, rtButton.Width(), rtButton.Height(), pDisplayMemDC, 0, 0,

SRCCOPY);
        pDisplayMemDC->SelectObject(pOldBitmap);
        pBitmap->DeleteObject();
        
        //最小化button
        if (m_rtButtMin.PtInRect(point))
            pBitmap->LoadBitmap(IDB_MIN_FOCUS);
        else
            pBitmap->LoadBitmap(IDB_MIN_NORMAL);
        rtButton = m_rtButtMin;
        rtButton.OffsetRect(-rtWnd.left, -rtWnd.top);
        pOldBitmap=(CBitmap*)pDisplayMemDC->SelectObject(pBitmap);
        pDC->BitBlt(rtButton.left, rtButton.top, rtButton.Width(), rtButton.Height(), pDisplayMemDC, 0, 0,

SRCCOPY);
        pDisplayMemDC->SelectObject(pOldBitmap);
        pBitmap->DeleteObject();
        
    }
    
    pDisplayMemDC->DeleteDC();
    
    delete pDisplayMemDC;
    delete pBitmap;

    CDialog::OnNcMouseMove(nHitTest, point);
}
大部分实现如上代码所示具体实现请参照程序附带的源代码。

第二步：改变窗口边框为圆角。
关键代码如下：
int CTitleBarColorDlg::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
    if (CDialog::OnCreate(lpCreateStruct) == -1)
        return -1;

    CRect rtWnd;
    GetWindowRect(&rtWnd);
    
    CRgn rgn;
    rgn.CreateRoundRectRgn(0,0,rtWnd.Width(),rtWnd.Height(),5,5);
    SetWindowRgn((HRGN)rgn,true);

    return 0;
}

第三步：填充背景。
关键代码如下：
BOOL CTitleBarColorDlg::OnEraseBkgnd(CDC* pDC)
{
    BOOL retValue= CDialog::OnEraseBkgnd(pDC);

    CRect rc;
    GetClientRect(&rc);
    pDC->FillSolidRect(&rc,RGB(236,233,216));
    
    return retValue;
}

第四步：绘制按钮。
具体请参考源代码中类CXPButton.h、CXPButton.cpp

第五步：绘制编辑框。
具体请参考源代码中类COwnerEdit.h、COwnerEdit.cpp

第六步：绘制静态字体和颜色。
这一步本来也写了一个类的，但想想用OnCtlColor()还是能很好的实现的，就没写。具体实现请看OnCtlColor()中的实现。