MFC简易音乐播放器

// MusicPlayerDlg.cpp : implementation file//

#include "stdafx.h"
#include "MusicPlayer.h"
#include "MusicPlayerDlg.h"

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

/
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	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

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)

// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/
// CMusicPlayerDlg dialog

CMusicPlayerDlg::CMusicPlayerDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMusicPlayerDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMusicPlayerDlg)
	m_TextFilePath = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDI_Music);
}

void CMusicPlayerDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMusicPlayerDlg)
	DDX_Text(pDX, IDC_EDIT2, m_TextFilePath);
	DDV_MaxChars(pDX, m_TextFilePath, 100);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMusicPlayerDlg, CDialog)
	//{{AFX_MSG_MAP(CMusicPlayerDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BTN_OPEN, OnBtnOpen)
	ON_BN_CLICKED(IDC_BTN_PLAY, OnBtnPlay)
	ON_BN_CLICKED(IDC_BTN_PAUSE, OnBtnPause)
	ON_BN_CLICKED(IDC_BTN_STOP, OnBtnStop)
	ON_BN_CLICKED(IDC_BTN_HELP, OnBtnHelp)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/
// CMusicPlayerDlg message handlers

BOOL CMusicPlayerDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

PlaySound("C:\Users\Administrator\Desktop\Audio.wav",NULL,SND_FILENAME|SND_ASYNC|SND_LOOP);
	// 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->AppendMenu(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 dialog
	SetIcon(m_hIcon, TRUE);
// Set big icon
	SetIcon(m_hIcon, FALSE);
// Set small icon

	// TODO: Add extra initialization here

	return TRUE;
// return TRUE
unless you set the focus to a control
}

void CMusicPlayerDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{

CAboutDlg dlgAbout;

dlgAbout.DoModal();
	}
	else
	{

CDialog::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 CMusicPlayerDlg::OnPaint() 
{
	if (IsIconic())
	{

CPaintDC dc(this); // device context for painting


SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);


// Center icon in client rectangle

int 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 icon

dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{

CDialog::OnPaint();

	}
}

// The system calls this to obtain the cursor to display while the user drags
//
the minimized window.
HCURSOR CMusicPlayerDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CMusicPlayerDlg::OnBtnOpen() 
{
	// TODO: Add your control notification handler code here
	CFileDialog dig(TRUE,NULL,NULL,OFN_FILEMUSTEXIST|

OFN_PATHMUSTEXIST,

"mp3文件（*MP3）|*.mp3|wav文件（*wav）|*.wav|所有文件（*.*）|*.*||");
	if(IDCANCEL==dig.DoModal())

return;
	CString strFilePath=dig.GetPathName();
	SetDlgItemText(IDC_EDIT2,strFilePath);
	mciSendCommand(m_IDdevice,MCI_CLOSE,0,0);
	//打开一首歌曲

	MCI_OPEN_PARMS mciOpenParms;
	mciOpenParms.lpstrElementName=strFilePath;
	//MessageBox(strFilePath);
	mciSendCommand(NULL,MCI_OPEN,MCI_OPEN_ELEMENT|MCI_WAIT,(DWORD)&mciOpenParms);
	m_IDdevice=mciOpenParms.wDeviceID;
}

void CMusicPlayerDlg::OnBtnPlay() 
{
	// TODO: Add your control notification handler code here

MCI_PLAY_PARMS mciPlayParms;
	mciPlayParms.dwCallback=NULL;
	mciPlayParms.dwFrom=0;

	mciSendCommand(m_IDdevice,MCI_PLAY,MCI_FROM|MCI_NOTIFY,(DWORD)&mciPlayParms);

}

void CMusicPlayerDlg::OnBtnPause() 
{
	// TODO: Add your control notification handler code here
	CString str;
	GetDlgItemText(IDC_BTN_PAUSE,str);
	if(str=="暂停")
	{	mciSendCommand(m_IDdevice, MCI_PAUSE,0,0);

SetDlgItemText(IDC_BTN_PAUSE,"继续");
	}else{

mciSendCommand(m_IDdevice, MCI_RESUME,0,0);

SetDlgItemText(IDC_BTN_PAUSE,"暂停");

}
}

void CMusicPlayerDlg::OnBtnStop() 
{
	// TODO: Add your control notification handler code here
	SetDlgItemText(IDC_EDIT2,"");

mciSendCommand(m_IDdevice,MCI_STOP,0,0);

mciSendCommand(m_IDdevice,MCI_CLOSE,0,0);

}



void CMusicPlayerDlg::OnBtnHelp() 
{
	// TODO: Add your control notification handler code here

CAboutDlg dlgAbout;

dlgAbout.DoModal();

}

// MusicPlayer.cpp : Defines the class behaviors for the application.//#include "stdafx.h"#include "MusicPlayer.h"#include "MusicPlayerDlg.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endif/// CMusicPlayerAppBEGIN_MESSAGE_MAP(CMusicPlayerApp, CWinApp)	//{{AFX_MSG_MAP(CMusicPlayerApp)
// NOTE - the ClassWizard will add and remove mapping macros here.
//
DO NOT EDIT what you see in these blocks of generated code!	//}}AFX_MSG	ON_COMMAND(ID_HELP, CWinApp::OnHelp)END_MESSAGE_MAP()/// CMusicPlayerApp constructionCMusicPlayerApp::CMusicPlayerApp(){	// TODO: add construction code here,	// Place all significant initialization in InitInstance}/// The one and only CMusicPlayerApp objectCMusicPlayerApp theApp;/// CMusicPlayerApp initializationBOOL CMusicPlayerApp::InitInstance(){	AfxEnableControlContainer();	// Standard initialization	// If you are not using these features and wish to reduce the size	//
of your final executable, you should remove from the following	//
the specific initialization routines you do not need.#ifdef _AFXDLL	Enable3dControls();
// Call this when using MFC in a shared DLL#else	Enable3dControlsStatic();	// Call this when linking to MFC statically#endif	CMusicPlayerDlg dlg;	m_pMainWnd = &dlg;	int nResponse = dlg.DoModal();	if (nResponse == IDOK)	{
// TODO: Place code here to handle when the dialog is
//
dismissed with OK	}	else if (nResponse == IDCANCEL)	{
// TODO: Place code here to handle when the dialog is
//
dismissed with Cancel	}	// Since the dialog has been closed, return FALSE so that we exit the	//
application, rather than start the application's message pump.	return FALSE;}