C# 调用系统winmm.dll 播放音乐wav mp3

using System.Runtime.InteropServices;//放wav

public partial class frmMain : Form
 {
    系统放 播放音乐  wav mp3
    [DllImport("winmm.dll")]
    public static extern bool PlaySound(string pszSound, int hmod, int fdwSound);//播放windows音乐，重载

     public frmMain()
     {
            InitializeComponent();
      }

        //进入 系统播放音乐
        private void m_SystemPlayWav(string strPlayFile)
        {
            try
            {
                if (strPlayFile.Trim() == "")
                { return; }//为空不放

                string strPath = AppDomain.CurrentDomain.SetupInformation.ApplicationBase;
                strPath = strPath + strPlayFile;

                int SND_FILENAME = 0x00020000;
                int SND_ASYNC = 0x0001;
                PlaySound(strPath, , SND_ASYNC | SND_FILENAME);//播放音乐
            }
            catch (Exception ex)
            {
                //myClass.clsLogHelper.m_CreateErrorLogTxt("m_SystemPlayWav win系统放wav文件", strPlayFile, ex.Message.ToString());
            }
        }
        private void m_SystemStopPlayWav()
        {
            try
            {
                PlaySound(null, , 0x40 | 0x04 | 0x02);
            }
            catch (Exception ex)
            {
                //myClass.clsLogHelper.m_CreateErrorLogTxt("m_SystemStopPlayWav win停止放wav文件", "", ex.Message.ToString());
            }
        }

}