net cf播放wav

using System; using System.Runtime.InteropServices; using System.IO; namespace DeviceApplication { /// /// Sound 的摘要说明。 /// string filename = Path.GetDirectoryName(Assembly.GetExecutingAssembly() /// .GetName().CodeBase) + @"/aa.wav"; /// 调用方法：Sound sound = new Sound(filename); /// 开始播放 sound.Play(); 停止播放 sound.endPlay(); 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); [DllImport("CoreDll.DLL", EntryPoint = "PlaySoundW", SetLastError = true)] private extern static int PlaySoundW(string szSound, int hMod, int flags); [DllImport("CoreDll.DLL", CharSet = CharSet.Auto)] public extern static bool sndPlaySound(string lpszSoundname, uint fuSound); [DllImport("coredll")] public static extern bool PlaySound(string szSound, IntPtr hMod, int flags); public Sound(string fileName) { m_fileName = fileName; } 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> /// 持续播放 /// </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 | Flags.SND_LOOP)); else WCE_PlaySoundBytes(m_soundBytes, IntPtr.Zero, (int)(Flags.SND_ASYNC | Flags.SND_MEMORY | Flags.SND_LOOP)); } /// <summary> /// 播放一次 /// </summary> public void PlayOnce() { // 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 | Flags.SND_NOWAIT)); else WCE_PlaySoundBytes(m_soundBytes, IntPtr.Zero, (int)(Flags.SND_ASYNC | Flags.SND_MEMORY)); } /// <summary> /// 停止播放 /// </summary> public void EndPlay() { try { WCE_PlaySoundBytes(null, IntPtr.Zero, (int)(Flags.SND_SYNC | Flags.SND_MEMORY | Flags.SND_NOWAIT)); } catch (Exception e) { string str; str = e.Message; } } } }