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Riprodurre un file WAV con .NET Compact Framework 2.0

La classe SoundPlayer, utilizzata per riprodurre file WAV, non è inclusa nel .NET Compact Framework 2.0. Di conseguenza, per ottenere questa funzionalità nelle applicazioni per dispositivi palmari, è necessario ricorrere alle API:

using System; using System.IO; using System.Runtime.InteropServices; namespace System.Media { public class SoundPlayer { private byte[] m_soundBytes; private string m_fileName; private enum Flags { SND_SYNC = 0x0000, SND_ASYNC = 0x0001, SND_NODEFAULT = 0x0002, SND_MEMORY = 0x0004, SND_LOOP = 0x0008, SND_NOSTOP = 0x0010, SND_NOWAIT = 0x00002000, SND_ALIAS = 0x00010000, SND_ALIAS_ID = 0x00110000, SND_FILENAME = 0x00020000, SND_RESOURCE = 0x00040004 } [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); public SoundPlayer(string fileName) { m_fileName = fileName; } public SoundPlayer(Stream stream) { m_soundBytes = new byte[stream.Length]; stream.Read(m_soundBytes, 0, (int)stream.Length); } public SoundPlayer(byte[] soundBytes) { m_soundBytes = soundBytes; } public void Play() { 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)); } } }

Print | posted on Sunday, December 31, 2006 3:25 PM | Filed Under [ .NET Compact Framework ]

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