Windows Mobile 播放声音文件

当发生某些事件的时候，播放提示音提醒用户。

方法一：

[DllImport("coredll.dll")]
private static extern bool PlaySound(string pszSound, IntPtr hmod, UInt32 fdwSound);

/// <summary>
/// 测试方法
/// </summary>
private static void PlayScheduleAlarmSound()
{
    string file = @"Windows\alarm.wav";
    PlaySound(file, IntPtr.Zero, 1);
}

方法二：

public 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);

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



    public void Stop()
    {
        if (m_fileName != null)
            WCE_PlaySound(null, IntPtr.Zero, (int)(Flags.SND_ASYNC | Flags.SND_FILENAME));
        else
            WCE_PlaySoundBytes(null, IntPtr.Zero, (int)(Flags.SND_ASYNC | Flags.SND_MEMORY));
    }
}

/// <summary>
/// 测试方法
/// </summary>
private static void PlayScheduleAlarmSound()
{
    string file = @"Windows\alarm.wav";
    Sound sound = new Sound(file);
    sound.Play();
}