VC制作具有声音效果的动画桌面精灵

  • 来源: 互联网 作者: rocket   2008-03-18/11:56
  •   你想制作出一个在桌面上透明显示,动态唱歌的桌面小精灵么?下面我来用我原来做的一个例子来教你如何来实现它。例子运行界面如下:



    基本思路: 采用透明位图方法在桌面上显示位图,定时更换位图以实现动画效果,再采用播放内部WAV资源文件方法来播放自带WAV文件既可(右键可关闭此程序)。

    具体实现步骤如下:

    1、 在新建的工程文件中(VC6.0)中导入一WAV文件,取名"WEST",再导入两幅位图取名"WEST1"和"WEST2"。

    2、 新建一.h文件,取名TransparentWnd.h

    代码内容如下:

    #if !defined(AFX_TRANSPARENTWND_H__6508F000_5685_11D3_9001_CBBD225E6BC4__INCLUDED_)
    #define AFX_TRANSPARENTWND_H__6508F000_5685_11D3_9001_CBBD225E6BC4__INCLUDED_

    #if _MSC_VER > 1000
    #pragma once
    #endif // _MSC_VER > 1000
    // TransparentWnd.h : header file
    //
    //////////////////////////////////////
    //作者: 徐景周. 2000.12
    //功能:透明位图及WAV资源播放
    //////////////////////////////////////
    // TransparentWnd window

    class TransparentWnd : public CWnd
    {
    // Construction
    public:
    TransparentWnd();

    void CreateTransparent(LPCTSTR pTitle, RECT &rect);
    void SetupRegion(CDC *pDC);
    void DoChange(void);
    void SoundPlay(void);

    CBitmap m_bmpDraw;
    int m_iAniSeq;

    // Attributes
    public:

    // Operations
    public:

    // Overrides
    // ClassWizard generated virtual function overrides
    //{{AFX_VIRTUAL(TransparentWnd)
    //}}AFX_VIRTUAL

    // Implementation
    public:
    virtual ~TransparentWnd();

    // Generated message map functions
    protected:
    //{{AFX_MSG(TransparentWnd)
    afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
    afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
    afx_msg BOOL OnEraseBkgnd(CDC* pDC);
    afx_msg void OnTimer(UINT nIDEvent);
    afx_msg void OnRButtonDown(UINT nFlags, CPoint point);
    //}}AFX_MSG
    DECLARE_MESSAGE_MAP()
    };

    /////////////////////////////////////////////////////////////////////////////

    //{{AFX_INSERT_LOCATION}}
    // Microsoft Visual C++ will insert additional declarations immediately before the previous line.

    #endif // !defined(AFX_TRANSPARENTWND_H__6508F000_5685_11D3_9001_CBBD225E6BC4__INCLUDED_)


    3、新建一.cpp文件,取名:TransparentWnd.cpp

    代码内容如下:

    // TransparentWnd.cpp : implementation file
    //////////////////////////////////////
    //作者: 徐景周. 2000.12
    //功能:透明位图及WAV资源播放
    //////////////////////////////////////
    #include "stdafx.h"
    #include "West.h"
    #include "TransparentWnd.h"
    #include "WestDlg.h"

    #ifdef _DEBUG
    #define new DEBUG_NEW
    #undef THIS_FILE
    static char THIS_FILE[] = __FILE__;
    #endif

    /////////////////////////////////////////////////////////////////////////////
    // TransparentWnd

    TransparentWnd::TransparentWnd()
    {
    m_iAniSeq=0; //图像变化初始值
    }

    TransparentWnd::~TransparentWnd()
    {
    }

    BEGIN_MESSAGE_MAP(TransparentWnd, CWnd)
    //{{AFX_MSG_MAP(TransparentWnd)
    ON_WM_LBUTTONDOWN()
    ON_WM_CREATE()
    ON_WM_ERASEBKGND()
    ON_WM_TIMER()
    ON_WM_RBUTTONDOWN()
    ON_COMMAND(IDR_HELP, OnHelp)
    ON_COMMAND(IDR_EXIT, OnExit)
    //}}AFX_MSG_MAP
    END_MESSAGE_MAP()

    //********************************************************************************
    //* CreateTransparent()
    //*
    //* Creates the main application window transparent
    //********************************************************************************
    void TransparentWnd::CreateTransparent(LPCTSTR pTitle, RECT &rect)
    {
    // 创建一个隐藏窗口
    CreateEx( 0,
    AfxRegisterWndClass(0,AfxGetApp()->LoadStandardCursor(IDC_ARROW)),
    pTitle,
    WS_POPUP ,
    rect,
    NULL,
    NULL,
    NULL);
    DoChange();
    }

    //********************************************************************************
    //* SetupRegion()
    //*
    //* Set the Window Region for transparancy outside the mask region
    //********************************************************************************
    void TransparentWnd::SetupRegion(CDC *pDC)
    {
    CDC memDC;
    CBitmap &cBitmap=m_bmpDraw;
    CBitmap* pOldMemBmp = NULL;
    COLORREF col,colMask;
    CRect cRect;
    int x, y;
    CRgn wndRgn, rgnTemp;

    GetWindowRect(&cRect);
    CPoint ptOrg=cRect.TopLeft();

    BITMAP bmInfo;
    cBitmap.GetObject(sizeof(bmInfo),&bmInfo);
    CRect rcNewWnd=CRect(ptOrg,CSize(bmInfo.bmWidth,bmInfo.bmHeight));

    memDC.CreateCompatibleDC(pDC);
    pOldMemBmp = memDC.SelectObject(&cBitmap);
    colMask=memDC.GetPixel(0,0);

    wndRgn.CreateRectRgn(0, 0, rcNewWnd.Width(), rcNewWnd.Height());
    for(x=0; x<=rcNewWnd.Width(); x++)
    {
    for(y=0; y<=rcNewWnd.Height(); y++)
    {
    col = memDC.GetPixel(x, y);
    if(col == colMask)
    {
    rgnTemp.CreateRectRgn(x, y, x+1, y+1);
    wndRgn.CombineRgn(&wndRgn, &rgnTemp, RGN_XOR);
    rgnTemp.DeleteObject();
    }
    }
    }
    if (pOldMemBmp) memDC.SelectObject(pOldMemBmp);
    SetWindowRgn((HRGN)wndRgn, TRUE);
    MoveWindow(rcNewWnd);
    }

    void TransparentWnd::DoChange(void)
    {
    char szBmp[20];

    //不断替换图像
    sprintf(szBmp,"WEST%d",m_iAniSeq%2+1);

    m_bmpDraw.DeleteObject();
    m_bmpDraw.LoadBitmap(szBmp);
    CWindowDC dc(this);
    SetupRegion(&dc);
    Invalidate();


    }

    void TransparentWnd::SoundPlay(void)
    {
    //先关闭原声音播放
    PlaySound("WEST",AfxGetResourceHandle(),SND_RESOURCE|SND_PURGE|SND_NODEFAULT );
    SetTimer(2,61080,NULL); //设置播放声音时间61.08秒
    //资源WAV文件的ID须加双引号,用下API函数播放
    PlaySound("WEST",AfxGetResourceHandle(),SND_RESOURCE|SND_ASYNC|SND_NODEFAULT );
    }

    void TransparentWnd::OnLButtonDown(UINT nFlags, CPoint point)
    {

    CWnd::OnLButtonDown(nFlags, point);

    //实现无标题拖动
    PostMessage(WM_NCLBUTTONDOWN, HTCAPTION, MAKELPARAM(point.x,point.y));
    }

    int TransparentWnd::OnCreate(LPCREATESTRUCT lpCreateStruct)
    {
    if (CWnd::OnCreate(lpCreateStruct) == -1)
    return -1;

    SetTimer(1,1000,NULL); //开始时的图像显示时间
    SetTimer(2,500,NULL); //启动声音播放计时器

    SetWindowPos(&wndTopMost,0,0,0,0,SWP_NOSIZE|SWP_NOMOVE); //窗体总在总前面
    return 0;
    }

    BOOL TransparentWnd::OnEraseBkgnd(CDC* pDC)
    {
    CRect rect;
    GetWindowRect(&rect);

    CDC memDC;
    CBitmap &cBitmap=m_bmpDraw;;
    CBitmap* pOldMemBmp = NULL;
    CFont* pOldMemFont=NULL;

    memDC.CreateCompatibleDC(pDC);
    pOldMemBmp = memDC.SelectObject(&cBitmap);
    pDC->BitBlt(0, 0, rect.Width(), rect.Height(), &memDC, 0, 0, SRCCOPY);

    if (pOldMemBmp) memDC.SelectObject( pOldMemBmp );

    return TRUE;
    // return CWnd::OnEraseBkgnd(pDC);
    }

    void TransparentWnd::OnTimer(UINT nIDEvent)
    {
    switch(nIDEvent)
    {
    case(1)://变换图像
    DoChange();
    break;
    case(2): //播放声音
    SoundPlay();
    break;
    default:
    break;
    }
    m_iAniSeq++;
    if(m_iAniSeq==2)
    m_iAniSeq=0;

    CWnd::OnTimer(nIDEvent);
    }

    void TransparentWnd::OnRButtonDown(UINT nFlags, CPoint point)
    {

    CWnd::OnRButtonDown(nFlags, point);

    DestroyWindow(); //鼠标右键点击时关闭此程序
    }

    4、在应用类(West.cpp)代码中初始化实例涵数改为下面既可:

    BOOL CWest::InitInstance()
    {
    srand(time(NULL));

    //一次只运行一个程序实例,如果已运行则退出
    if( FindWindow(NULL,"大话西游经典系列之--情感天地")) exit(0);

    TransparentWnd* pFrame = new TransparentWnd;
    m_pMainWnd = pFrame;

    // create and load the frame with its resources
    CRect rect(0, 0, 100, 100);
    pFrame->CreateTransparent("大话西游经典系列之--情感天地", rect);//IDB_MASK, IDB_BACK);
    pFrame->CenterWindow(); //初始显示窗体位置
    pFrame->ShowWindow(SW_SHOW);

    return TRUE;
    }

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