c# 播放音樂

 
  #region"dll"
        [System.Runtime.InteropServices.DllImport("winmm.DLL", EntryPoint = "PlaySound", SetLastError = true)]
        private static extern bool PlaySound(string szSound, System.IntPtr hMod, PlaySoundFlags flags);

        [System.Flags]
        public enum PlaySoundFlags : int
        {
            SND_SYNC = 0x0000,
            SND_ASYNC = 0x0001,
            SND_NODEFAULT = 0x0002,
            SND_LOOP = 0x0008,
            SND_NOSTOP = 0x0010,
            SND_NOWAIT = 0x00002000,
            SND_FILENAME = 0x00020000,
            SND_RESOURCE = 0x00040004
        }

 

       
        /// <summary>
        /// 使用API
        /// </summary>
        public static uint SND_ASYNC = 0x0001; // play asynchronously
        public static uint SND_FILENAME = 0x00020000; // name is file name
        [DllImport("winmm.dll")]
        public static extern int mciSendString(string m_strCmd, string m_strReceive, int m_v1, int m_v2);

        [DllImport("Kernel32", CharSet = CharSet.Auto)]
        static extern Int32 GetShortPathName(String path,StringBuilder shortPath, Int32 shortPathLength);
        #endregion

 

  //PlaySound(Application.StartupPath + "//Windows XP 關機.wav", new System.IntPtr(), PlaySoundFlags.SND_SYNC);

        string name = Application.StartupPath + "//01.mp3";
        StringBuilder shortpath=new StringBuilder(80);
        int result=GetShortPathName(name,shortpath,shortpath.Capacity);

        name=shortpath.ToString();
        mciSendString(@"close all",null,0,0);
        mciSendString(@"open "+name+" alias song",null,0,0); //打開
        mciSendString("play song",null,0,0); //播放