手把手教您用MFC做MP3音樂(lè)播放器.doc

打開(kāi)vc6.0，建立如圖所示mfc工程文件選擇基于對(duì)話框的確定刪除所有空間，建立如圖所示對(duì)話框?qū)傩匀缦拢翰シ?IDC_open；添加 IDC_fileopen；暫停 IDC_pause；刪除 IDC_del；停止 IDC_stop；退出 IDC_exit；音樂(lè)名編輯框 IDC_filename；音量控制滑塊 IDC_SLIDER1；音量控制編輯框 IDC_vol；建立類(lèi)向?qū)?duì)應(yīng)如下：在工程文件，右鍵，插入，bitmap位圖引入你想插入的背景圖，必須是bmp格式的進(jìn)入你的dlg.cpp文件在onpaint函數(shù)下添加代碼void CMp3Dlg:OnPaint() if (IsIconic()CPaintDC dc(this); / device context for paintingSendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);/ Center icon in client rectangleint cxIcon = GetSystemMetrics(SM_CXICON);int cyIcon = GetSystemMetrics(SM_CYICON);CRect rect;GetClientRect(&rect);int x = (rect.Width() - cxIcon + 1) / 2;int y = (rect.Height() - cyIcon + 1) / 2;/ Draw the icondc.DrawIcon(x, y, m_hIcon);else/CDialog:OnPaint();CPaintDC dc(this); CRect rect; GetClientRect(&rect); CDC dcMem; dcMem.CreateCompatibleDC(&dc); CBitmap bmpBackground; bmpBackground.LoadBitmap(IDB_BITMAP6); /IDB_BITMAP6是你的位圖地址BITMAP bitmap; bmpBackground.GetBitmap(&bitmap); CBitmap *pbmpOld=dcMem.SelectObject(&bmpBackground); dc.StretchBlt(0,0,rect.Width(),rect.Height(),&dcMem,0,0,bitmap.bmWidth,bitmap.bmHeight,SRCCOPY); 編譯運(yùn)行，你就會(huì)看到背景有圖片了。插入-類(lèi)，找到geneticclass，類(lèi)名mp3.cpp你會(huì)發(fā)現(xiàn)在頭文件中多了一個(gè)mp3.h文件在mp3.h文件中添加代碼如下/ Mp3.h: interface for the Mp3 class./#if !defined(AFX_MP3_H_20D325E5_A96A_43FE_A485_92F57C68DD0D_INCLUDED_)#define AFX_MP3_H_20D325E5_A96A_43FE_A485_92F57C68DD0D_INCLUDED_#if _MSC_VER 1000#pragma once#endif / _MSC_VER 1000#include Mmsystem.hclass Mp3 public:Mp3();virtual Mp3(); HWND m_hWnd; /DWORD DeviceID;/ID MCI_OPEN_PARMS mciopenparms; / void Load(HWND hwnd,CString Strfilepath);DWORD getinformation(DWORD item);void Play();void Pause();void resum();void Stop();#endif / !defined(AFX_MP3_H_20D325E5_A96A_43FE_A485_92F57C68DD0D_INCLUDED_)在mp3.cpp中添加如下代碼/ Mp3.cpp: implementation of the Mp3 class./#include stdafx.h#include Mp3.h#include Mp3.h#ifdef _DEBUG#undef THIS_FILEstatic char THIS_FILE=_FILE_;#define new DEBUG_NEW#endif/ Construction/Destruction/Mp3:Mp3()Mp3:Mp3()void Mp3:Load(HWND hwnd,CString Strfilepath)m_hWnd=hwnd;mciSendCommand(DeviceID,MCI_CLOSE,0,0); /mciopenparms.lpstrElementName=Strfilepath;/DWORD dwReturn;if (dwReturn=mciSendCommand(NULL,MCI_OPEN,MCI_OPEN_ELEMENT|MCI_WAIT,(DWORD)(LPVOID)&mciopenparms)/bufferchar buffer256; mciGetErrorString(dwReturn,buffer,256);MessageBox(hwnd,buffer,MB_ICONHAND|MB_ICONERROR|MB_ICONSTOP);DeviceID=mciopenparms.wDeviceID; /DWORD Mp3:getinformation(DWORD item)/MCIMCI_STATUS_PARMS mcistatusparms;/mcistatusparms.dwItem=item;mcistatusparms.dwReturn=0;/mciSendCommand(DeviceID,MCI_STATUS,MCI_STATUS_ITEM,(DWORD)&mcistatusparms);return mcistatusparms.dwReturn; void Mp3:Play()MCI_PLAY_PARMS mciplayparms;mciplayparms.dwCallback=(DWORD)m_hWnd;mciplayparms.dwFrom=0; /mciSendCommand(DeviceID,MCI_PLAY,MCI_FROM|MCI_NOTIFY,(DWORD)(LPVOID)&mciplayparms);void Mp3:Pause()mciSendCommand(DeviceID,MCI_PAUSE,0,0);void Mp3:resum()mciSendCommand(DeviceID,MCI_RESUME,0,0);void Mp3:Stop()mciSendCommand(DeviceID,MCI_STOP,0,0);mciSendCommand(DeviceID,MCI_CLOSE,0,0);在dlg.cpp文件的public中添加一行代碼：int hour,minute,second;在CMp3Dlg:CMp3Dlg(CWnd* pParent /*=NULL*/)中添加如下CMp3Dlg:CMp3Dlg(CWnd* pParent /*=NULL*/): CDialog(CMp3Dlg:IDD, pParent)/AFX_DATA_INIT(CMp3Dlg)m_int = 0;/AFX_DATA_INIT/ Note that LoadIcon does not require a subsequent DestroyIcon in Win32m_hIcon = AfxGetApp()-LoadIcon(IDI_ICON1);hour=0;minute=0;second=0;dlg.cpp中頭文件如下：#include stdafx.h#include Mp3.h#include Mp3Dlg.h#include Mmsystem.h#include Digitalv.h #include Mp3.h /#pragma comment(lib,Winmm.lib)#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif在對(duì)話框中雙擊添加添加onfileopen函數(shù)，代碼如下void CMp3Dlg:Onfileopen() char filefiler=mp3文件(*.mp3)|*.mp3| wma文件(*.wma)|*.wma| wav文件(*.wav)|*.wav|;CFileDialog dlg(true,NULL,NULL,OFN_HIDEREADONLY|OFN_ALLOWMULTISELECT|OFN_ENABLESIZING,filefiler);if (dlg.DoModal()=IDOK)CString strfilepath=dlg.GetPathName();CString strfilename=dlg.GetFileName();SetDlgItemText(IDC_filename,strfilename);CString mtime;CClientDC dc(this);hour=0;minute=0;second=0;dc.SetBkColor(RGB(124,252,0);/設(shè)置放置計(jì)數(shù)器區(qū)域的外觀dc.SetTextColor(RGB(255,255,203);/設(shè)置數(shù)字顯示的顏色mtime.Format(%02d:%02d:%02d,hour,minute,second);/顯示時(shí)間進(jìn)度dc.TextOut(280,128,mtime);Mp3 mp3;mp3.Load(this-m_hWnd,strfilepath);GetDlgItem(IDC_open)-EnableWindow(TRUE);GetDlgItem(IDC_pause)-EnableWindow(TRUE);GetDlgItem(IDC_stop)-EnableWindow(TRUE);GetDlgItem(IDC_del)-EnableWindow(TRUE); m_list.InsertString(m_list.GetCount(),strfilename);/獲取文件名 m_list.SetCurSel(m_list.GetCount()-1);雙擊播放，進(jìn)入代碼，添加如下void CMp3Dlg:Onopen() CString strfilename;int index=m_list.GetCurSel();CString mtime;CClientDC dc(this);Mp3 mp3;hour=0;minute=0;second=0;dc.SetBkColor(RGB(124,252,0);/設(shè)置放置計(jì)數(shù)器區(qū)域的外觀dc.SetTextColor(RGB(255,255,203);/設(shè)置數(shù)字顯示的顏色mtime.Format(%02d:%02d:%02d,hour,minute,second);/顯示時(shí)間進(jìn)度dc.TextOut(280,128,mtime);if(index=-1)MessageBox(請(qǐng)?zhí)砑右魳?lè));return;m_list.GetText(index,strfilename);SetDlgItemText(IDC_filename,strfilename); mp3.Stop();mp3.Load(this-m_hWnd,strfilename);mp3.Play(); SetTimer(0,1000,NULL);同理，暫停，停止，刪除，退出代碼如下void CMp3Dlg:Onpause() / TODO: Add your control notification handler code hereCString strtemp;Mp3 mp3;GetDlgItemText(IDC_pause,strtemp);/獲取按鈕狀態(tài)if (strtemp.Compare(暫停)=0)mp3.Pause();SetDlgItemText(IDC_pause,繼續(xù));KillTimer(0);/取消計(jì)數(shù)器的顯示if (strtemp.Compare(繼續(xù))=0)mp3.resum();SetTimer(0,1000,NULL);SetDlgItemText(IDC_pause,暫停);void CMp3Dlg:Onstop() / TODO: Add your control notification handler code hereMp3 mp3;mp3.Stop();SetDlgItemText(IDC_pause,暫停);KillTimer(0);/取消計(jì)數(shù)器的顯示CString mtime;CClientDC dc(this);hour=0;minute=0;second=0;dc.SetBkColor(RGB(124,252,0);/設(shè)置放置計(jì)數(shù)器區(qū)域的外觀dc.SetTextColor(RGB(255,255,203);/設(shè)置數(shù)字顯示的顏色mtime.Format(%02d:%02d:%02d,hour,minute,second);/顯示時(shí)間進(jìn)度dc.TextOut(280,128,mtime);GetDlgItem(IDC_open)-EnableWindow(FALSE);GetDlgItem(IDC_pause)-EnableWindow(FALSE);GetDlgItem(IDC_stop)-EnableWindow(FALSE); GetDlgItem(IDC_del)-EnableWindow(FALSE);void CMp3Dlg:Ondel() UpdateData(TRUE);Mp3 mp3;int index=m_list.GetCurSel();mp3.Stop();SetDlgItemText(IDC_filename,);KillTimer(0);hour=0;minute=0;second=0;/歌曲時(shí)間置0if (index!=CB_ERR)m_list.DeleteString(index);void CMp3Dlg:Onexit() / TODO: Add your control notification handler code hereCDialog:OnCancel();ctrl+w打開(kāi)類(lèi)向?qū)В鐖D，添加ontimer函數(shù)代碼如下：void CMp3Dlg:OnTimer(UINT nIDEvent) / TODO: Add your message handler code here and/or call defaultCString mtime;Mp3 mp3;second+;CClientDC dc(this);dc.SetBkColor(RGB(124,252,0);/設(shè)置放置計(jì)數(shù)器區(qū)域的外觀dc.SetTextColor(RGB(255,255,203);/設(shè)置數(shù)字顯示的顏色 if(second=60)/設(shè)置鐘表的顯示minute+;second=0;if(minute=60)hour+;minute=0;mtime.Format(%02d:%02d:%02d,hour,minute,second);/顯示時(shí)間進(jìn)度dc.TextOut(280,128,mtime); DWORD cdf=mp3.getinformation(MCI_STATUS_POSITION);DWORD cdfrom; cdfrom=MCI_MAKE_MSF(MCI_MSF_MINUTE(cdf),MCI_MSF_SECOND(cdf),MCI_MSF_FRAME(cdf);/獲取當(dāng)前播放文件的信息UpdateData(false);CDialog:OnTimer(nIDEvent);ctrl+w打開(kāi)類(lèi)向?qū)砑雍瘮?shù)如下void CMp3Dlg:OnDblclkList() /在列表中選中，雙擊左鍵播放音樂(lè)CString mtime;Mp3 mp3;CClientDC dc(this);hour=0;minute=0;second=0;dc.SetBkColor(RGB(124,252,0);/設(shè)置放置計(jì)數(shù)器區(qū)域的外觀dc.SetTextColor(RGB(255,255,203);/設(shè)置數(shù)字顯示的顏色mtime.Format(%02d:%02d:%02d,hour,minute,second);/顯示時(shí)間進(jìn)度dc.TextOut(280,128,mtime);CString strfilename;int index=m_list.GetCurSel();m_list.GetText(index,strfilename);SetDlgItemText(IDC_filename,strfilename);mp3.Stop();mp3.Load(this-m_hWnd,strfilename);mp3.Play(); SetTimer(0,1000,NULL);打開(kāi)類(lèi)向?qū)В砑雍瘮?shù)如下void CMp3Dlg:OnCustomdrawSlider1(NMHDR* pNMHDR, LRESULT* pResult) / TODO: Add your control notification handler code hereUpdateData(true);m_int=m_slider.GetPos()/10;Setvolumn(m_slider.GetPos();UpdateData(false);*pResult = 0;打開(kāi)類(lèi)向?qū)?，添加函?shù)如下void CMp3Dlg:OnReleasedcaptureSlider1(NMHDR* pNMHDR, LRESULT* pResult) / TODO: Add your control notification handler code hereSetvolumn(m_slider.GetPos();*pResult = 0;添加聲音設(shè)置函數(shù)如下DWORD CMp3Dlg:Setvolumn(DWORD vol)MCI_DGV_SETAUDIO_PARMS mcisetvolumn;mcisetvolumn.dwCallback=NULL;mcisetvolumn.dwItem=MCI_DGV_SETAUDIO_VOLUME;mcisetvolumn.dwValue=vol; MCI_OPEN_PARMS mciopenparms;DWORD DeviceID;DeviceID=mciopenparms.wDeviceID;mciSendCommand(DeviceID,MCI_SETAUDIO,MCI_DGV_SETAUDIO_VALUE|MCI_DGV_SETAUDIO_ITEM,(DWORD)(LPVOID)&mcisetvolumn);/return mcisetvolumn.dwValue;return 0;到此已經(jīng)基本完成了，我們可以試聽(tīng)一下接下來(lái)我們可以到包成exe可執(zhí)行文件，為了去掉那個(gè)不好看的圖標(biāo)，我們可以進(jìn)入res文件夾，把原來(lái)的圖標(biāo)刪掉，不過(guò)，你要放入一個(gè)cio格式的圖片作為圖標(biāo)，cio格式網(wǎng)上有很多轉(zhuǎn)換的，刪掉原圖標(biāo)后，程序會(huì)自動(dòng)生成一個(gè)你放進(jìn)去的圖標(biāo)。接下來(lái)演示打包：工程，設(shè)置，或者按alt+f7，如圖設(shè)置組建，批組建，如圖創(chuàng)建完成后，你就會(huì)發(fā)現(xiàn)在你的工程文件中多了一個(gè)release文件夾，打開(kāi)找到exe，這個(gè)文件就是打包好的，隨便放到哪里都可以執(zhí)行，至此，工作基本完成了，最后附上源代碼，僅供參考dlg.cpp文件/ Mp3播放器Dlg.cpp : implementation file/#include stdafx.h#include Mp3播放器.h#include Mp3播放器Dlg.h#include Mmsystem.h#include Digitalv.h #include Mp3.h /音量控制用到#pragma comment(lib,Winmm.lib)#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/ CAboutDlg dialog used for App Aboutclass CAboutDlg : public CDialogpublic:CAboutDlg();/ Dialog Data/AFX_DATA(CAboutDlg)enum IDD = IDD_ABOUTBOX ;/AFX_DATA/ ClassWizard generated virtual function overrides/AFX_VIRTUAL(CAboutDlg)protected:virtual void DoDataExchange(CDataExchange* pDX); / DDX/DDV support/AFX_VIRTUAL/ Implementationprotected:/AFX_MSG(CAboutDlg)/AFX_MSGDECLARE_MESSAGE_MAP();CAboutDlg:CAboutDlg() : CDialog(CAboutDlg:IDD)/AFX_DATA_INIT(CAboutDlg)/AFX_DATA_INITvoid CAboutDlg:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CAboutDlg)/AFX_DATA_MAPBEGIN_MESSAGE_MAP(CAboutDlg, CDialog)/AFX_MSG_MAP(CAboutDlg)/ No message handlers/AFX_MSG_MAPEND_MESSAGE_MAP()/ CMp3Dlg dialogCMp3Dlg:CMp3Dlg(CWnd* pParent /*=NULL*/): CDialog(CMp3Dlg:IDD, pParent)/AFX_DATA_INIT(CMp3Dlg)m_int = 0;/AFX_DATA_INIT/ Note that LoadIcon does not require a subsequent DestroyIcon in Win32m_hIcon = AfxGetApp()-LoadIcon(IDI_ICON1);hour=0;minute=0;second=0;void CMp3Dlg:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CMp3Dlg)DDX_Control(pDX, IDC_LIST, m_list);DDX_Control(pDX, IDC_SLIDER1, m_slider);DDX_Text(pDX, IDC_vol, m_int);/AFX_DATA_MAPBEGIN_MESSAGE_MAP(CMp3Dlg, CDialog)/AFX_MSG_MAP(CMp3Dlg)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_BN_CLICKED(ID_exit, Onexit)ON_NOTIFY(NM_CUSTOMDRAW, IDC_SLIDER1, OnCustomdrawSlider1)ON_BN_CLICKED(IDC_fileopen, Onfileopen)ON_BN_CLICKED(IDC_open, Onopen)ON_BN_CLICKED(IDC_pause, Onpause)ON_BN_CLICKED(IDC_stop, Onstop)ON_NOTIFY(NM_RELEASEDCAPTURE, IDC_SLIDER1, OnReleasedcaptureSlider1)ON_WM_TIMER()ON_BN_CLICKED(IDC_del, Ondel)ON_LBN_DBLCLK(IDC_LIST, OnDblclkList)/AFX_MSG_MAPEND_MESSAGE_MAP()/ CMp3Dlg message handlersBOOL CMp3Dlg:OnInitDialog()CDialog:OnInitDialog();/ Add About. menu item to system menu./ IDM_ABOUTBOX must be in the system command range.ASSERT(IDM_ABOUTBOX & 0xFFF0) = IDM_ABOUTBOX);ASSERT(IDM_ABOUTBOX AppendMenu(MF_SEPARATOR);pSysMenu-AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);/ Set the icon for this dialog. The framework does this automatically/ when the applications main window is not a dialogSetIcon(m_hIcon, TRUE);/ Set big iconSetIcon(m_hIcon, FALSE); / Set small iconSetWindowText(MP3播放器);MoveWindow(250,150,580,500); /顯示時(shí)間控制m_slider.SetRange(0,1000); /移動(dòng)范圍m_slider.SetPos(500);/滑塊指針的初始位置GetDlgItem(IDC_open)-EnableWindow(FALSE);GetDlgItem(IDC_pause)-EnableWindow(FALSE);GetDlgItem(IDC_stop)-EnableWindow(FALSE); GetDlgItem(IDC_del)-EnableWindow(FALSE);/ TODO: Add extra initialization herereturn TRUE; / return TRUE unless you set the focus to a controlvoid CMp3Dlg:OnSysCommand(UINT nID, LPARAM lParam)if (nID & 0xFFF0) = IDM_ABOUTBOX)CAboutDlg dlgAbout;dlgAbout.DoModal();elseCDialog:OnSysCommand(nID, lParam);/ If you add a minimize button to your dialog, you will need the code below/ to draw the icon. For MFC applications using the document/view model,/ this is automatically done for you by the framework.void CMp3Dlg:OnPaint() if (IsIconic()CPaintDC dc(this); / device context for paintingSendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);/ Center icon in client rectangleint cxIcon = GetSystemMetrics(SM_CXICON);int cyIcon = GetSystemMetrics(SM_CYICON);CRect rect;GetClientRect(&rect);int x = (rect.Width() - cxIcon + 1) / 2;int y = (rect.Height() - cyIcon + 1) / 2;/ Draw the icondc.DrawIcon(x, y, m_hIcon);else/CDialog:OnPaint();CPaintDC dc(this); CRect rect; GetClientRect(&rect); CDC dcMem; dcMem.CreateCompatibleDC(&dc); CBitmap bmpBackground; bmpBackground.LoadBitmap(IDB_BITMAP6); BITMAP bitmap; bmpBackground.GetBitmap(&bitmap); CBitmap *pbmpOld=dcMem.SelectObject(&bmpBackground); dc.StretchBlt(0,0,rect.Width(),rect.Height(),&dcMem,0,0,bitmap.bmWidth,bitmap.bmHeight,SRCCOPY); / The system calls this to obtain the cursor to display while the user drags/ the minimized window.HCURSOR CMp3Dlg:OnQueryDragIcon()return (HCURSOR) m_hIcon;void CMp3Dlg:Onexit() / TODO: Add your control notification handler code hereCDialog:OnCancel();void CMp3Dlg:OnCustomdrawSlider1(NMHDR* pNMHDR, LRESULT* pResult) / TODO: Add your control notification handler code hereUpdateData(true);m_int=m_slider.GetPos()/10;Setvolumn(m_slider.GetPos();UpdateData(false);*pResult = 0;void CMp3Dlg:Onfileopen() char filefiler=mp3文件(*.mp3)|*.mp3| wma文件(*.wma)|*.wma| wav文件(*.wav)|*.wav|;CFileDialog dlg(true,NULL,NULL,OFN_HIDEREADONLY|OFN_ALLOWMULTISELECT|OFN_ENABLESIZING,filefiler);if (dlg.DoModal()=IDOK)CString strfilepath=dlg.GetPathName();CString strfilename=dlg.GetFileName();SetDlgItemText(IDC_filename,strfilename);CString mtime;CClientDC dc(this);hour=0;minute=0;second=0;dc.SetBkColor(RGB(124,252,0);/設(shè)置放置計(jì)數(shù)器區(qū)域的外觀dc.SetTextColor(RGB(255,255,203);/設(shè)置數(shù)字顯示的顏色mtime.Format(%02d:%02d:%02d,hour,minute,second);/顯示時(shí)間進(jìn)度dc.TextOut(280,128,mtime);Mp3 mp3;mp3.Load(this-m_hWnd,strfilepath);GetDlgItem(IDC_open)-EnableWindow(TRUE);GetDlgItem(IDC_pause)-EnableWindow(TRUE);GetDlgItem(IDC_stop)-EnableWindow(TRUE);GetDlgItem(IDC_del)-EnableWindow(TRUE); m_list.InsertString(m_list.GetCount(),strfilename);/獲取文件名 m_list.SetCurSel(m_list.GetCount()-1);void CMp3Dlg:Onopen() CString strfilename;int index=m_list.GetCurSel();CString mtime;CClientDC dc(this);Mp3 mp3;hour=0;minute=0;second=0;dc.SetBkColor(RGB(124,252,0);/設(shè)置放置計(jì)數(shù)器區(qū)域的外觀dc.SetTextColor(RGB(255,255,203);/設(shè)置數(shù)字顯示的顏色mtime.Format(%02d:%02d:%02d,hour,minute,second);/顯示時(shí)間進(jìn)度dc.TextOut(280,128,mtime);if(index=-1)MessageBox(請(qǐng)?zhí)砑右魳?lè));return;m_list.GetText(index,strfilename);SetDlgItemText(IDC_filename,strfilename); mp3.Stop();mp3.Load(this-m_hWnd,strfilename);mp3.Play(); SetTimer(0,1000,NULL);void CMp3Dlg:Onpause() / TODO: Add your control notification handler code hereCString strtemp;Mp3 mp3;GetDlgItemText(IDC_pause,strtemp);/獲取按鈕狀態(tài)if (strtemp.Compare(暫停)=0)mp3.Pause();SetDlgItemText(IDC_pause,繼續(xù));KillTimer(0);/取消計(jì)數(shù)器的顯示if (strtemp.Compare(繼續(xù))=0)mp3.resum();SetTimer(0,1000,NULL);SetDlgItemText(IDC_pause,暫停);void CMp3Dlg:Onstop() / TODO: Add your control notification handler code hereMp3