c# wince 声音播放

时间:2022-12-23 17:58:56
 class Sound
    {
        private byte[] m_soundBytes;
        private string m_fileName;
        private enum Flags
        {


            SND_SYNC = 0x0000,  /* play synchronously (default) */


            SND_ASYNC = 0x0001,  /* play asynchronously */


            SND_NODEFAULT = 0x0002,  /* silence (!default) if sound not found */


            SND_MEMORY = 0x0004,  /* pszSound points to a memory file */


            SND_LOOP = 0x0008,  /* loop the sound until next sndPlaySound */


            SND_NOSTOP = 0x0010,  /* don't stop any currently playing sound */


            SND_NOWAIT = 0x00002000, /* don't wait if the driver is busy */


            SND_ALIAS = 0x00010000, /* name is a registry alias */


            SND_ALIAS_ID = 0x00110000, /* alias is a predefined ID */


            SND_FILENAME = 0x00020000, /* name is file name */


            SND_RESOURCE = 0x00040004  /* name is resource name or atom */


        }

        [DllImport("CoreDll.DLL", EntryPoint = "PlaySound", SetLastError = true)]
        private extern static int WCE_PlaySound(string szSound, IntPtr hMod, int flags);
        [DllImport("CoreDll.DLL", EntryPoint = "PlaySound", SetLastError = true)]
        private extern static int WCE_PlaySoundBytes(byte[] szSound, IntPtr hMod, int flags);


        //方法1:播放文件

        /// <summary>
        /// Construct the Sound object to play sound data from the specified file.
        /// </summary>
        public Sound(string fileName)
        {
            m_fileName = fileName;
        }






        /// <summary>
        /// Construct the Sound object to play sound data from the specified stream.
        /// </summary>
        public Sound(Stream stream)
        {
            // read the data from the stream
            m_soundBytes = new byte[stream.Length];
            stream.Read(m_soundBytes, 0, (int)stream.Length);
        }

        /// <summary>
        /// Play the sound
        /// </summary>
        public void Play()
        {
            // if a file name has been registered, call WCE_PlaySound,
            //  otherwise call WCE_PlaySoundBytes
            if (m_fileName != null)
                WCE_PlaySound(m_fileName, IntPtr.Zero, (int)(Flags.SND_ASYNC | Flags.SND_FILENAME));
            else
                WCE_PlaySoundBytes(m_soundBytes, IntPtr.Zero, (int)(Flags.SND_ASYNC | Flags.SND_MEMORY));

        }

        //方法2:驱动CE蜂鸣器响应
        /// <summary>
        /// uint Ok = 0x00000000;    uint Error = 0x00000010;   uint Question = 0x00000020;  uint Warning = 0x00000030;   uint Information = 0x00000040;       
        /// </summary>
        /// <param name="type"></param>
        /// <returns></returns>
        [DllImport("CoreDll.dll", EntryPoint = "MessageBeep", CharSet = CharSet.Unicode, CallingConvention = CallingConvention.Winapi)]
        public static extern bool MessageBeep(int type); 


    }