C#定义的MP3播放类实例

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Runtime.InteropServices;
namespace Mp3Tool
{
  public Class MP3Player
  {
    [DllImport ("winmm.dll")]
    static extern Int32 mciSendString (String command,StringBuilder buffer, Int32 bufferSize, IntPtr hwndCallback);
    /// <summary>
    /// temporary repository of music files
    /// </ summary>
    private String m_musicPath = "";
    /// <summary>
    /// parent window handle
    /// </ summary>
    private IntPtr m_Handle;
    /// <summary>
    /// Create Mp3 player class
    /// </ summary>
    /// <PARAM name="music">embedded music file</ param>
    /// <PARAM name="path">temporary music file path</ param>
    /// <PARAM name="Handle">parent window handle</ param>
    public MP3Player (Byte [] Music, String path, IntPtr Handle)
    {
      try
      {
        m_Handle = Handle;
        m_musicPath = Path.Combine (path, "temp.mp3");
        FileStream fs = new FileStream (m_musicPath, FileMode.Create);
        fs.Write (Music, 0, music.Length);
        fs.Close ();
      }
      catch (Exception)
      {
      }
    }
    /// <summary>
    /// Create Mp3 player class
    /// </ summary>
    /// <PARAM name="musicPath">to play the mp3 file path</ param>
    /// <PARAM name="Handle">parent window handle</ param>
    public MP3Player(String musicPath, IntPtr Handle)
    {
      m_musicPath = musicPath;
      m_Handle = Handle;
    }
    public MP3Player(Byte [] Music, IntPtr Handle) : this(Music, @"C:\Windows\",Handle)
    {
    }
    public void Open (String path)
    {
      IF (path ! = "")
      {
        try
        {
          mciSendString ("Open " + path + " alias Media", null, 0, m_Handle);
          mciSendString ("play Media", null, 0, m_Handle);
        }
        catch (Exception)
        {
        }
      }
    }
    public void Open()
    {
      Open (m_musicPath);
    }
    void CloseMedia()
    {
      try
      {
        mciSendString ("Close ALL", null, 0, m_Handle);
      }
      catch (Exception)
      {
      }
    }
  }
}

private void Main()
{
 　　//load music
 　　MP3Player MP3 = new MP3Player (Properties.Resources.music, Handle);
　　//music start playing
 　　mp3.Open ();
}