{
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);
}