www.pudn.com > vc-network-communication.rar > AudioPlay.cpp

//NetTalk 
/*------------------------------------------------------------------------------*\ 
 ============================= 
   模块名称: AudioPlay.cpp 
 ============================= 
  
 [版权] 
  
   2000-2002  115软件工厂  版权所有 
                                               
\*------------------------------------------------------------------------------*/ 
#include "WndX.h" 
#include  
 
#include "WaveOut.h" 
#include "AudioPlay.h" 
 
/*------------------------------------------------------------------------------*/ 
 
 
CAudioPlay::CAudioPlay() 
{ 
 
} 
/*------------------------------------------------------------------------------*/ 
//播放一块数据 
BOOL CAudioPlay::Play(char *buf, UINT uSize) 
{ 
 
	BOOL bRet=FALSE; 
	char* p; 
	LPWAVEHDR pwh=new WAVEHDR; 
	if(!pwh) 
		goto RET; 
	p=new char[uSize];//重新分配一块内存(在播放结束后删除) 
	if(!p) 
		goto RET; 
	CopyMemory(p,buf,uSize); 
	ZeroMemory(pwh,sizeof(WAVEHDR)); 
	pwh->dwBufferLength=uSize; 
	pwh->lpData=p; 
	// 
	m_mmr=waveOutPrepareHeader(m_hOut,pwh,sizeof(WAVEHDR)); 
    if(m_mmr) 
		goto RET; 
	m_mmr=waveOutWrite(m_hOut,pwh,sizeof(WAVEHDR)); 
	if(m_mmr) 
		goto RET; 
	bRet=TRUE; 
	 
	 
RET: 
	return bRet; 
} 
 
/*------------------------------------------------------------------------------*/ 
//打开音频输出设备 
BOOL CAudioPlay::Create(WAVEFORMATEX *pwf,DWORD dwCallBack,DWORD dwInst,DWORD fdwOpen ) 
{ 
	BOOL bRet=FALSE; 
	if(m_hOut) 
	{ 
		bRet=TRUE; 
		goto RET; 
	} 
	//打开设备 
	if(!OpenDev(pwf,dwCallBack,dwInst,fdwOpen)) 
		goto RET; 
	bRet=TRUE; 
RET: 
	return bRet; 
} 
 
/*------------------------------------------------------------------------------*/ 
 
CAudioPlay::~CAudioPlay() 
{ 
	Destroy(); 
} 
 
/*------------------------------------------------------------------------------*/ 
 
BOOL CAudioPlay::Destroy() 
{ 
	BOOL bRet=FALSE; 
	if(!CloseDev()) 
		goto RET; 
	bRet=TRUE; 
RET: 
	return bRet; 
 
}