在PPC上播放声音不像在PC上可以直接使用vs2005给提供的System.media命名空间中的方法.而只能调用外部的coredll.dll库.只能播放.wav文件,并且还不是所有的都能播,但现在我也没有发现还有其他的办法.
以下是播放声音的代码:
class Sound
{
private byte[] m_soundBytes;
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 MobilePlaySound(string szSound, IntPtr hMod, int flags);//播放外部声音文件
[DllImport("CoreDll.DLL", EntryPoint = "PlaySound", SetLastError = true)]
private extern static int MoiblePlaySoundBytes(byte[] szSound, IntPtr hMod, int flags);//播放嵌入声音资源
/// <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);
}
public Sound(byte [] snd)
{
m_soundBytes =snd;
}
/// <summary>
/// Play the sound
/// </summary>
public void Play()
{
MoiblePlaySoundBytes(Properties.Resources.notify, IntPtr.Zero, (int)(Flags.SND_ASYNC | Flags.SND_FILENAME));
}
Properties.Resources.notify这个是我的嵌入声音资源，源文件是notify.wav，这个也是我自己改的，用ＭＳＤＮ上提供的代码，我怎么也播不出声音来．