用MFC做MP音乐播放器——超实用

1、第一步：打开vc6.0，建立如图所示mfc工程文件选择基于对话框的确定删除所有空间，建立如图所示对话框属性如下：播放 IDC_open；添加 IDC_fileopen；暂停 IDC_pause；删除 IDC_del；停止 IDC_stop；退出 IDC_exit；音乐名编辑框 IDC_filename；音量控制滑块 IDC_SLIDER1；音量控制编辑框 IDC_vol；建立类向导对应如下：在工程文件，右键，插入，bitmap位图引入你想插入的背景图，必须是bmp格式的进入你的dlg.cpp文件在onpaint函数下添加代码void CMp3Dlg:OnPaint() if (IsIconic

2、()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

3、;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是你的位图地址BITMAP bi

4、tmap; bmpBackground.GetBitmap(&bitmap); CBitmap *pbmpOld=dcMem.SelectObject(&bmpBackground); dc.StretchBlt(0,0,rect.Width(),rect.Height(),&dcMem,0,0,bitmap.bmWidth,bitmap.bmHeight,SRCCOPY); 编译运行，你就会看到背景有图片了。插入-类，找到geneticclass，类名mp3.cpp你会发现在头文件中多了一个mp3.h文件在mp3.h文件中添加代码如下/ Mp3.h: interfac

5、e 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.h"class Mp3 public:Mp3();virtual Mp3(); HWND m_hWnd; /&

6、#188;Ǽµ±Ç°´°¿ÚµÄ¾ä±úDWORD DeviceID;/Ö¸¶¨²¥·ÅÒôÀÖµÄÉ豸ID MCI_OPEN_PARMS mciopenparms; /Ö¸¶¨´ò

7、¿ªÒôÀÖÎļþµÄ²ÎÊý 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

8、.cpp中添加如下代码/ Mp3.cpp: implementation of the Mp3 class./#include "stdafx.h"#include "Mp3²¥·ÅÆ÷.h"#include "Mp3.h"#ifdef _DEBUG#undef THIS_FILEstatic char THIS_FILE=_FILE_;#define new DEBUG_NEW#endif/ Construction/Destruction/Mp3:Mp3()Mp3:Mp3

9、()void Mp3:Load(HWND hwnd,CString Strfilepath)m_hWnd=hwnd;mciSendCommand(DeviceID,MCI_CLOSE,0,0); /¼ÓÔØÎļþÇ°ÏÈÇå³ýÉÏ´ÎÉèÖÃmciopenparms.lpstrElementName=Strfilepath;/½«&#

10、210;ôÀÖÎļþ·¾¶´«¸øÉ豸DWORD dwReturn;if (dwReturn=mciSendCommand(NULL,MCI_OPEN,MCI_OPEN_ELEMENT|MCI_WAIT,(DWORD)(LPVOID)&mciopenparms)/Èç¹û´ò¿ªÊ§°

11、;Ü£¬½«³ö´íÐÅÏ¢´æÔÚbuffer²¢ÏÔʾ³ö´í¾¯¸æchar buffer256; mciGetErrorString(dwReturn,buffer,256);MessageBox(hwnd,buffer,"³ö´í

12、;¾¯¸æ",MB_ICONHAND|MB_ICONERROR|MB_ICONSTOP);DeviceID=mciopenparms.wDeviceID; /¶àýÌåÉ豸ÀàÐͱàºÅDWORD Mp3:getinformation(DWORD item)/MCI½Ó¿Ú¶ÔÏó

13、µÄ״̬MCI_STATUS_PARMS mcistatusparms;/´ý»ñÈ¡µÄÏîÄ¿mcistatusparms.dwItem=item;mcistatusparms.dwReturn=0;/Ïë¶àýÌåÉ豸·¢ËÍÖ

14、84;Á»ñÈ¡µ±Ç°µÄ״̬²ÎÊýmciSendCommand(DeviceID,MCI_STATUS,MCI_STATUS_ITEM,(DWORD)&mcistatusparms);return mcistatusparms.dwReturn; void Mp3:Play()MCI_PLAY_PARMS mciplayparms;mciplayparm

15、s.dwCallback=(DWORD)m_hWnd;mciplayparms.dwFrom=0; /ÿ´Î´ÓÍ·²¥·ÅmciSendCommand(DeviceID,MCI_PLAY,MCI_FROM|MCI_NOTIFY,(DWORD)(LPVOID)&mciplayparms);void Mp3:Pause()mciSendCommand(DeviceID,MCI_PAUSE,0,0);void Mp3:resum()mciSendCommand(Devi

16、ceID,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中添加一行代码：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

17、)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中头文件如下：#include "stdafx.h"#include "Mp3²¥·ÅÆ÷.h"#include "Mp3²

18、5;·ÅÆ÷Dlg.h"#include "Mmsystem.h"#include "Digitalv.h" #include "Mp3.h" /ÒôÁ¿¿ØÖÆÓõ½#pragma comment(lib,"Winmm.lib")#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic c

19、har THIS_FILE = _FILE_;#endif在对话框中双击添加添加onfileopen函数，代码如下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.Do

20、Modal()=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);/设置放置计数器区域的外观dc.SetTextColor(RGB(255,255,203);/设置数字显示的颜色mtime.Format("%02d:%02

21、d:%02d",hour,minute,second);/显示时间进度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.Inse

22、rtString(m_list.GetCount(),strfilename);/获取文件名 m_list.SetCurSel(m_list.GetCount()-1);双击播放，进入代码，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);/设置放置计数器区域的外观dc.SetTextColor(RGB(25

23、5,255,203);/设置数字显示的颜色mtime.Format("%02d:%02d:%02d",hour,minute,second);/显示时间进度dc.TextOut(280,128,mtime);if(index=-1)MessageBox("请添加音乐");return;m_list.GetText(index,strfilename);SetDlgItemText(IDC_filename,strfilename); mp3.Stop();mp3.Load(this->m_hWnd,strfilename);mp3.Play();

24、SetTimer(0,1000,NULL);同理，暂停，停止，删除，退出代码如下void CMp3Dlg:Onpause() / TODO: Add your control notification handler code hereCString strtemp;Mp3 mp3;GetDlgItemText(IDC_pause,strtemp);/获取按钮状态if (strtemp.Compare("暂停")=0)mp3.Pause();SetDlgItemText(IDC_pause,"继续");KillTimer(0);/取消计数器的显示if (

25、strtemp.Compare("继续")=0)mp3.resum();SetTimer(0,1000,NULL);SetDlgItemText(IDC_pause,"暂停");void CMp3Dlg:Onstop() / TODO: Add your control notification handler code hereMp3 mp3;mp3.Stop();SetDlgItemText(IDC_pause,"暂停");KillTimer(0);/取消计数器的显示CString mtime;CClientDC dc(this)

26、;hour=0;minute=0;second=0;dc.SetBkColor(RGB(124,252,0);/设置放置计数器区域的外观dc.SetTextColor(RGB(255,255,203);/设置数字显示的颜色mtime.Format("%02d:%02d:%02d",hour,minute,second);/显示时间进度dc.TextOut(280,128,mtime);GetDlgItem(IDC_open)->EnableWindow(FALSE);GetDlgItem(IDC_pause)->EnableWindow(FALSE);GetDl

27、gItem(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;/歌曲时间置0if (index!=CB_ERR)m_list.DeleteString(inde

28、x);void CMp3Dlg:Onexit() / TODO: Add your control notification handler code hereCDialog:OnCancel();ctrl+w打开类向导，如图，添加ontimer函数代码如下：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(124,2

29、52,0);/设置放置计数器区域的外观dc.SetTextColor(RGB(255,255,203);/设置数字显示的颜色 if(second=60)/设置钟表的显示minute+;second=0;if(minute=60)hour+;minute=0;mtime.Format("%02d:%02d:%02d",hour,minute,second);/显示时间进度dc.TextOut(280,128,mtime); DWORD cdf=mp3.getinformation(MCI_STATUS_POSITION);DWORD cdfrom; cdfrom=MCI_MA

30、KE_MSF(MCI_MSF_MINUTE(cdf),MCI_MSF_SECOND(cdf),MCI_MSF_FRAME(cdf);/获取当前播放文件的信息UpdateData(false);CDialog:OnTimer(nIDEvent);ctrl+w打开类向导添加函数如下void CMp3Dlg:OnDblclkList() /在列表中选中，双击左键播放音乐CString mtime;Mp3 mp3;CClientDC dc(this);hour=0;minute=0;second=0;dc.SetBkColor(RGB(124,252,0);/设置放置计数器区域的外观dc.SetTex

31、tColor(RGB(255,255,203);/设置数字显示的颜色mtime.Format("%02d:%02d:%02d",hour,minute,second);/显示时间进度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);

32、mp3.Play(); SetTimer(0,1000,NULL);打开类向导，添加函数如下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;打开类向导，添加函数如下void CMp3Dlg:OnRel

33、easedcaptureSlider1(NMHDR* pNMHDR, LRESULT* pResult) / TODO: Add your control notification handler code hereSetvolumn(m_slider.GetPos();*pResult = 0;添加声音设置函数如下DWORD CMp3Dlg:Setvolumn(DWORD vol)MCI_DGV_SETAUDIO_PARMS mcisetvolumn;mcisetvolumn.dwCallback=NULL;mcisetvolumn.dwItem=MCI_DGV_SETAUDIO_VOLUM

34、E;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;到此已经基本完成了，我们可以试听一下接下来我们可以到包成exe可执行文件，为了去掉那个

35、不好看的图标，我们可以进入res文件夹，把原来的图标删掉，不过，你要放入一个cio格式的图片作为图标，cio格式网上有很多转换的，删掉原图标后，程序会自动生成一个你放进去的图标。接下来演示打包：工程，设置，或者按alt+f7，如图设置组建，批组建，如图创建完成后，你就会发现在你的工程文件中多了一个release文件夹，打开找到exe，这个文件就是打包好的，随便放到哪里都可以执行，至此，工作基本完成了，最后附上源代码，仅供参考dlg.cpp文件/ Mp3播放器Dlg.cpp : implementation file/#include "stdafx.h"#include &

36、quot;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

37、 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/ Imple

38、mentationprotected:/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, CDia

39、log)/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 = AfxGetAp

40、p()->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, CDial

41、og)/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

42、_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.

43、/ IDM_ABOUTBOX must be in the system command range.ASSERT(IDM_ABOUTBOX & 0xFFF0) = IDM_ABOUTBOX);ASSERT(IDM_ABOUTBOX < 0xF000);CMenu* pSysMenu = GetSystemMenu(FALSE);if (pSysMenu != NULL)CString strAboutMenu;strAboutMenu.LoadString(IDS_ABOUTBOX);if (!strAboutMenu.IsEmpty()pSysMenu->AppendM

44、enu(MF_SEPARATOR);pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);/ Set the icon for this dialog. The framework does this automatically/ when the application's main window is not a dialogSetIcon(m_hIcon, TRUE);/ Set big iconSetIcon(m_hIcon, FALSE); / Set small iconSetWindowText(&q

45、uot;MP3播放器");MoveWindow(250,150,580,500); /显示时间控制m_slider.SetRange(0,1000); /移动范围m_slider.SetPos(500);/滑块指针的初始位置GetDlgItem(IDC_open)->EnableWindow(FALSE);GetDlgItem(IDC_pause)->EnableWindow(FALSE);GetDlgItem(IDC_stop)->EnableWindow(FALSE); GetDlgItem(IDC_del)->EnableWindow(FALSE);/

46、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

47、 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

48、(), 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:OnPain

49、t();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,rec

50、t.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 han

51、dler 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=&q

52、uot;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();SetDlgItemT

53、ext(IDC_filename,strfilename);CString mtime;CClientDC dc(this);hour=0;minute=0;second=0;dc.SetBkColor(RGB(124,252,0);/设置放置计数器区域的外观dc.SetTextColor(RGB(255,255,203);/设置数字显示的颜色mtime.Format("%02d:%02d:%02d",hour,minute,second);/显示时间进度dc.TextOut(280,128,mtime);Mp3 mp3;mp3.Load(this->m_hWnd,s

54、trfilepath);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);/获取文件名 m_list.SetCurSel(m_list.GetCount()-1);void CMp3Dlg:On

55、open() 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);/设置放置计数器区域的外观dc.SetTextColor(RGB(255,255,203);/设置数字显示的颜色mtime.Format("%02d:%02d:%02d",hour,minute,second);/显示时间进度dc.TextOut(280,128,mtime);

56、if(index=-1)MessageBox("请添加音乐");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);/获取按钮状态if (strtemp.Compare("暂停")=0)mp3.Pause();SetDlgItemText(IDC_pause,"继续");Kill