// commci.cpp: implementation of the commci class.
//
////////////////////////////////////////////////////////////
//////////
#include "stdafx.h"
//#include "mcitest.h"
#include "commci.h"
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif
////////////////////////////////////////////////////////////
//////////
// Construction/Destruction
////////////////////////////////////////////////////////////
//////////
COMMCI::COMMCI()
{
memset(this,0,sizeof(COMMCI));
}
MCIERROR COMMCI::Open(LPCSTR DeviceType,LPCSTR filename)
{
//如果有打开的设备就关闭
if (mciOpen.wDeviceID) Close();
//初始化MCI_OPEN_PARMS结构
mciOpen.lpstrDeviceType=DeviceType;
mciOpen.lpstrElementName=filename;
//除了打开设备设备代码为0，下面的任何mciSendCommand语句都要指定设
//备代码。
if ( mciSendCommand(NULL,MCI_OPEN,
MCI_OPEN_TYPE | MCI_OPEN_ELEMENT,
(DWORD)&mciOpen))
return FALSE;
return TRUE;
}
MCIERROR COMMCI::Open(LPCSTR filename)
{
if (mciOpen.wDeviceID) Close();
mciOpen.lpstrElementName=filename;
if ( mciSendCommand(NULL,MCI_OPEN,
/*MCI_OPEN_TYPE |*/ MCI_OPEN_ELEMENT,
(DWORD)&mciOpen))
return FALSE;
return TRUE;
}
MCIERROR COMMCI::Open(int DeviceType,LPCSTR filename)
{
if (mciOpen.wDeviceID) Close();
mciOpen.lpstrDeviceType=(LPCSTR)DeviceType;
mciOpen.lpstrElementName=filename;
return mciSendCommand(NULL,MCI_OPEN,
MCI_OPEN_TYPE |
MCI_OPEN_TYPE_ID ,(DWORD)&mciOpen);
}
void COMMCI::Play(HWND hWnd)
{
MCI_PLAY_PARMS mciPlay;
hOwer=hWnd; //回调窗口句柄
//MCI_PLAY_PARMS结构只需要设定回调窗口句柄
mciPlay.dwCallback=(WORD)hOwer;
mciSendCommand(mciOpen.wDeviceID,MCI_PLAY,MCI_NOTIFY,
(DWORD)&mciPlay);
}
void COMMCI::Close(void)
{
if (mciOpen.wDeviceID)
mciSendCommand(mciOpen.wDeviceID,MCI_CLOSE,NULL,NULL);
memset(this,0,sizeof(COMMCI));
}
void COMMCI::Stop(void)
{
if (mciOpen.wDeviceID)
mciSendCommand(mciOpen.wDeviceID,MCI_STOP,NULL,NULL);
}
void COMMCI::Pause(void)
{
if (mciOpen.wDeviceID)
mciSendCommand(mciOpen.wDeviceID,MCI_PAUSE,NULL,NULL);
}
DWORD COMMCI::Query()
{
MCI_STATUS_PARMS mciStatus;
mciStatus.dwItem=MCI_STATUS_MODE;//播放状态
mciStatus.dwItem=MCI_STATUS_LENGTH;//文件长度
mciStatus.dwItem=MCI_SEQ_STATUS_TEMPO;//播放速度
mciSendCommand(mciOpen.wDeviceID,MCI_STATUS,MCI_STATUS_ITEM,(LPARAM)&mciStatus);
return mciStatus.dwReturn;
};
DWORD COMMCI::PlayTime()
{
MCI_STATUS_PARMS mciStatus;
mciStatus.dwItem=MCI_STATUS_LENGTH;//文件长度
mciSendCommand(mciOpen.wDeviceID,MCI_STATUS,MCI_STATUS_ITEM,(LPARAM)&mciStatus);
DWORD Langth=mciStatus.dwReturn;
mciStatus.dwItem=MCI_SEQ_STATUS_TEMPO;//播放速度
mciSendCommand(mciOpen.wDeviceID,MCI_STATUS,MCI_STATUS_ITEM,(LPARAM)&mciStatus);
//DWORD timeLangth=Langth/mciStatus.dwReturn;
return Langth;
};
