Three MP3 playback Methods

Three MP3 playback Methods
1. Use the Windows Media Player Control
First, insert the Windows Media Player control and drag it to the dialog box. And name the control m_wmpplayer.
Void cmusicdlg: onbutton1 ()
{
// Todo: add your control notification handler code here
Cstring filename;
Cfiledialog DLG (true );
If (DLG. domodal () = idok)
{
Filename = DLG. getpathname ();
M_wmpplayer.seturl (filename );
}
}

2. Use MCI
Include header file # include <VFW. h>, library file vfw32.lib
Hwnd m_audio;

M_audio = mciwndcreate (this-> getsafehwnd (), AfxGetInstanceHandle (), ws_child | ws_visible | mciwndf_nomenu, null );

Void cmusicdlg: onbutton2 ()
{
// Todo: add your control notification handler code here
Cstring filename;
Cfiledialog DLG (true );
If (DLG. domodal () = idok)
{
Filename = DLG. getpathname ();
Mciwndopen (m_audio, filename. getbuffer (0), 0 );
Filename. releasebuffer ();

Mciwndplay (m_audio );
}
}

3. Use DirectShow
DirectX needs to be installed
Include header file # include <dshow. h>, library file strmiids. Lib
Igraphbuilder * pgbuilder;
Imediacontrol * pmcontrol;
Imediaposition * pmpos;

coinitialize (null); // initialize com
// create each object
cocreateinstance (clsid_filtergraph, null, clsctx_inproc, iid_igraphbuilder, (void **) & pgbuilder);
pgbuilder-> QueryInterface (iid_imediacontrol, (void **) & pmcontrol);
pgbuilder-> QueryInterface (iid_imediaposition, (void **) & pmpos);

void cmusicdlg: onbutton3 ()
{< br> // todo: add your control notification handler code here
cstring filename;
cfiledialog DLG (true);
If (DLG. domodal () = idok)
{< br> filename = DLG. getpathname ();
wchar wstrsoundpath [max_path]; // stores the path in the unicode format
multibytetowidechar (cp_acp, 0, filename. getbuffer (0),-1, wstrsoundpath, max_path);
filename. releasebuffer ();

Pgbuilder-> renderfile (wstrsoundpath, null); // call the file
// Play MP3 files
Pmpos-> put_currentposition (0); // move to the file header
Pmcontrol-> Run (); // play
}
}

# Define safe_release (p) if (null! = P) {P-> release (); P = NULL ;}

bool cmusicdlg: destroywindow ()
{< br> // todo: add your specialized code here and/or call the base class
// release the object
safe_release (pmcontrol);
safe_release (pmpos );
safe_release (pgbuilder);
couninitialize (); // release com
return cdialog: destroywindow ();
}