VS2010 基于windows media player做音乐播放器，问题解析（已验证）

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一、添加媒体操作变量：

CWMPPlayer40 mPlayer4;//插件变量
CWMPSettings mSet; //setting变量
CWMPControls mmCtrl;// Controls变量
CWMPPlaylist mlist; //list变量

CWMPMedia mMedia;//媒体文件变量

二、OnInitDialog()

mPlayer4.put_URL(_T("F:\\CloudMusic\\刘珂矣 - 如是.mp3"));

mmCtrl = static_cast<CWMPControls>(mPlayer4.get_controls());//成员变量初始化
mSet = static_cast<CWMPSettings>(mPlayer4.get_settings());
mlist = static_cast<CWMPPlaylist>(mPlayer4.get_currentPlaylist());

mPlayer4.put_currentPlaylist(mlist); //不必须，设置播放列表
mSet.put_autoStart(TRUE);//自动播放
mSet.setMode(_T("loop"),TRUE);//单曲循环

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CFileDialog file(TRUE,_T(""),_T(""),
  OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT,
  _T("(*.*)|*.*|(*.mp3)|*.mp3|(*.avi)|*.avi"));
if (file.DoModal())
{
  mPlayer4.put_URL(file.GetPathName());
  SetDlgItemText(IDC_BUTTON4,mPlayer4.get_URL());
  mMedia = static_cast<CWMPMedia>(mPlayer4.newMedia(file.GetPathName()));
  mlist.appendItem(mMedia);
  mPlayer4.put_currentPlaylist(mlist);
  CString info;
  long mCount = mMedia.get_attributeCount();
  for (long i = 0;i<mCount;i++)
  {
   info.Format(_T("%s:%s\n\n"),mMedia.getAttributeName(i),mMedia.getItemInfo(mMedia.getAttributeName(i)));
   MessageBox(info);
  }

TRACE("\n\n\n\n");
}

-------------------------------------------------------------------------------

void CSqlAdoDlg::OnBnClickedButton7()
{
// TODO: Add your control notification handler code here
CString str;
GetDlgItemText(IDC_BUTTON7,str);
if (str==_T("暂停"))
{
  mmCtrl.pause();
  SetDlgItemText(IDC_BUTTON7,_T("继续"));
}else{
  mmCtrl.play();
  SetDlgItemText(IDC_BUTTON7,_T("暂停"));
}

}

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