具體源碼如下：

一、使用API函數(shù)mciSendString構(gòu)成的媒體播放類。

using System;

using System.Runtime.InteropServices;

using System.Text;

using System.IO ;

namespace clsMCIPlay

{

　 ///

{

　 TemStr = "";

　 TemStr = TemStr.PadLeft(127,Convert.ToChar(" "));

　 APIClass.mciSendString("play media", TemStr, TemStr.Length , 0);

　 mc.state = State.mPlaying ;

}

//停止

public void StopT()

{

　 TemStr = "";

　 TemStr = TemStr.PadLeft(128,Convert.ToChar(" "));

　 ilong = APIClass.mciSendString("close media", TemStr, 128, 0);

　 ilong = APIClass.mciSendString("close all", TemStr, 128, 0);

　 mc.state = State.mStop ;

}

public void Puase()

{

　 TemStr = "";

　 TemS

　 ilong = APIClass.mciSendString("pause media", TemStr, TemStr.Length, 0);

　 mc.state = State.mPuase ;

}

private string GetCurrPath(string name)

{

　 if(name.Length <1) return "";

　 name = name.Trim();

　 name = name.Substring(0,name.Length-1);

　 return name;

}

//總時間

public int Duration

{

　 get

　 {

durLength = "";

durLength = durLength.PadLeft(128,Convert.ToChar(" ")) ;

APIClass.mciSendString("status media length", durLength, durLength.Length, 0);

durLength = durLength.Trim();

if(durLength == "") return 0;

return (int)(Convert.ToDouble(durLength) / 1000f);

　 }

}

//當前時間

public int CurrentPosition

{

　 get

　 {

durLength = "";

durLength = durLength.PadLeft(128,Convert.ToChar(" ")) ;

APIClass.mciSendString("status media position", durLength, durLength.Length, 0);

mc.iPos = (int)(Convert.ToDouble(durLength) / 1000f);

return mc.iPos;

　 }

}

　 }

　 public class APIClass

　 {

[DllImport("kernel32.dll", CharSet = CharSet.Auto)]

public static extern int GetShortPathName (

　 string lpszLongPath,

　 string shortFile,

　 int cchBuffer

);

[DllImport("winmm.dll", EntryPoint="mciSendString", CharSet = CharSet.Auto)]

public static extern int mciSendString (

　 string lpstrCommand,

　 string lpstrReturnString,

　 int uReturnLength,

　 int hwndCallback

);

　 }

}