//?Midi.cpp
#include?“stdafx.h“
#include?“Midi.h“

CMidi::CMidi（）
{

	m_nDevices?=?midiOutGetNumDevs（）;
	m_bOpened?=?m_bPaused?=?m_bPlaying?=?FALSE;
	m_wDeviceID?=?0;

}

CMidi::~CMidi（）
{

	Close（）;

}

int?CMidi::DeviceCount（?void?）
{

	return（?m_nDevices?）;

}

BOOL?CMidi::Open（?const?char?*lpszFilename?）
{

	if（?!m_bOpened?）{

		//?Initialize?member?variables.
		m_bPaused?=?m_bPlaying?=?FALSE;
		m_wDeviceID?=?0;

		//?See?if?the?file?exists.
		CFileStatus?Status;
		if（?!CFile::GetStatus（?lpszFilename?Status?）?）
		{
			return（?FALSE?）;
		}
		//?Open?the?device.
		MCI_OPEN_PARMS?OpenParms;
		OpenParms.lpstrDeviceType?=?（LPCSTR）?MCI_DEVTYPE_SEQUENCER;
		OpenParms.lpstrElementName?=?（LPCSTR）?lpszFilename;
		OpenParms.wDeviceID?=?0;
		if（?mciSendCommand（?NULL?MCI_OPEN?MCI_WAIT?|?MCI_OPEN_TYPE?|?MCI_OPEN_TYPE_ID?|?MCI_OPEN_ELEMENT?（DWORD）（LPVOID）?&OpenParms?）?）
			return（?FALSE?）;
		m_wDeviceID?=?OpenParms.wDeviceID;
		m_bOpened?=?TRUE;

		//?Set?the?time?format?to?milliseconds.
		MCI_SET_PARMS?SetParms;
		SetParms.dwTimeFormat?=?MCI_FORMAT_MILLISECONDS;
		if（?mciSendCommand（?m_wDeviceID?MCI_SET?MCI_SET_TIME_FORMAT?（DWORD）（LPVOID）?&SetParms?）?）
		{
			Close（）;
			return（?FALSE?）;
		}
		mciSendCommand（?m_wDeviceID?MCI_SEEK?MCI_SEEK_TO_START?NULL?）;
		return（?TRUE?）;
		}

	return（?FALSE?）;

}

BOOL?CMidi::Close（?void?）
{

	if（?m_bOpened?）{

		//?Stop?the?playing?and?close?the?device.
		if（?m_bPlaying?||?m_bPaused?）
			mciSendCommand（?m_wDeviceID?MCI_STOP?NULL?NULL?）;
		mciSendCommand（?m_wDeviceID?MCI_CLOSE?NULL?NULL?）;

		//?Clear?member?variables.
		m_bOpened?=?m_bPaused?=?m_bPlaying?=?FALSE;
		m_wDeviceID?=?0;

		return（?TRUE?）;
		}

	return（?FALSE?）;

}

BOOL?CMidi::Play（?void?）
{

	if（?m_bOpened?）{

		//?Issue?the?‘play‘?command.
		MCI_PLAY_PARMS?PlayParms;
		PlayParms.dwCallback?=?NULL;
		PlayParms.dwFrom?=?（?（?GetMinutes（）?*?60?）?+?GetSeconds?（）?）?*?1000;
		if（?mciSendCommand（?m_wDeviceID?MCI_PLAY?MCI_FROM?（DWORD）（LPVOID）?&PlayParms?）?）
			return（?FALSE?）;

		//?Set?our?class?members?so?we?know?that
		//?we‘re?currently?playing.
		m_bPlaying?=?TRUE;
		m_bPaused?=?FALSE;

		return（?TRUE?）;
		}

	return（?FALSE?）;

}

BOOL?CMidi::Stop（?void?）
{

	if（?m_bOpened?&&?m_bPlaying?）{
		//?Issue?the?‘stop‘?command.
		mciSendCommand（?m_wDeviceID?MCI_STOP?NULL?NULL?）;
		//?Issue?the?command?that?seeks?back?to?the?start.
		mciSendCommand（?m_wDeviceID?MCI_SEEK?MCI_SEEK_TO_START?NULL?）;
		m_bPaused?=?m_bPlaying?=?FALSE;

		return（?TRUE?）;
		}

	return（?FALSE?）;

}

BOOL?CMidi::Pause（?void?）
{

	if（?m_bOpened?&&?m_bPlaying?）{

		//?Pause?the?CD.
		MCI_PLAY_PARMS?PlayParms;
		if（?mciSendCommand（?m_wDeviceID?MCI_PAUSE?0?（DWORD）（LPVOID）?&PlayParms?）?）
			return（?FALSE?）;

		m_bPaused?=?TRUE;

		return（?TRUE?）;
		}

	return（?FALSE?）;

}

BOOL?CMidi::IsPlaying（?void?）
{

	if（?m_bOpened?）{

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????21222??2013-01-21?21:35??播放Mid音頻文件\Debug\Midi.obj

?????文件????2125896??2013-01-21?21:35??播放Mid音頻文件\Debug\MidPlayer.exe

?????文件????2507068??2013-01-21?21:35??播放Mid音頻文件\Debug\MidPlayer.ilk

?????文件??????18430??2013-01-21?21:35??播放Mid音頻文件\Debug\MidPlayer.obj

?????文件????5461380??2013-01-20?21:59??播放Mid音頻文件\Debug\MidPlayer.pch

?????文件????4121600??2013-01-21?21:35??播放Mid音頻文件\Debug\MidPlayer.pdb

?????文件???????8732??2013-01-20?21:59??播放Mid音頻文件\Debug\MidPlayer.res

?????文件??????37401??2013-01-21?21:35??播放Mid音頻文件\Debug\MidPlayerDlg.obj

?????文件?????106006??2013-01-20?21:59??播放Mid音頻文件\Debug\StdAfx.obj

?????文件?????214016??2013-01-21?21:35??播放Mid音頻文件\Debug\vc60.idb

?????文件?????372736??2013-01-21?21:35??播放Mid音頻文件\Debug\vc60.pdb

?????文件???????7874??2013-01-21?21:35??播放Mid音頻文件\Midi.cpp

?????文件????????631??1997-11-28?15:09??播放Mid音頻文件\Midi.h

?????文件??????21136??2013-01-20?22:00??播放Mid音頻文件\MidPlayer.aps

?????文件???????1306??2013-01-21?21:34??播放Mid音頻文件\MidPlayer.clw

?????文件???????2101??2013-01-21?21:35??播放Mid音頻文件\MidPlayer.cpp

?????文件???????4345??1999-02-23?15:57??播放Mid音頻文件\MidPlayer.dsp

?????文件????????543??1999-02-23?14:52??播放Mid音頻文件\MidPlayer.dsw

?????文件???????1357??1999-02-23?14:52??播放Mid音頻文件\MidPlayer.h

?????文件??????58368??2013-01-21?21:35??播放Mid音頻文件\MidPlayer.ncb

?????文件??????50688??2013-01-21?21:35??播放Mid音頻文件\MidPlayer.opt

?????文件???????1303??2013-01-21?21:35??播放Mid音頻文件\MidPlayer.plg

?????文件???????5558??1999-02-23?19:24??播放Mid音頻文件\MidPlayer.rc

?????文件???????5235??2013-01-21?21:34??播放Mid音頻文件\MidPlayerDlg.cpp

?????文件???????1553??1999-02-23?19:12??播放Mid音頻文件\MidPlayerDlg.h

?????文件???????3633??1999-02-23?14:52??播放Mid音頻文件\ReadMe.txt

?????文件???????1078??1999-02-23?14:52??播放Mid音頻文件\res\MidPlayer.ico

?????文件????????401??1999-02-23?14:52??播放Mid音頻文件\res\MidPlayer.rc2

?????文件????????871??1999-02-23?14:54??播放Mid音頻文件\resource.h

?????文件????????211??1999-02-23?14:52??播放Mid音頻文件\StdAfx.cpp

............此處省略7個文件信息