Audio.cs :  » Build-Systems » CruiseControl.NET » ThoughtWorks » CruiseControl » CCTrayLib » C# / CSharp Open Source

using System;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace ThoughtWorks.CruiseControl.CCTrayLib{
  /// <summary>
  /// Summary description for Audio.
  /// </summary>
  public class Audio
  {
    ///<summary>
    ///Plays a sound from a byte array. 
    ///Note: If distortion or corruption of audio playback occurs, 
    ///try using synchronous playback, or save to a temp file and
    ///use the file-based option.
    ///</summary>
    public static int PlaySound (byte[] audio, bool bSynchronous, bool bIgnoreErrors)
    {
      return PlaySound (audio, bSynchronous, bIgnoreErrors, false, false, false);
    }

    ///<summary>
    ///Plays a sound from a byte array. 
    ///Note: If distortion or corruption of audio playback occurs, 
    ///try using synchronous playback, or save to a temp file and
    ///use the file-based option.
    ///</summary>
    public static int PlaySound (byte[] audio, bool bSynchronous, bool bIgnoreErrors,
                                 bool bNoDefault, bool bLoop, bool bNoStop)
    {
      const int SND_ASYNC = 1;
      const int SND_NODEFAULT = 2;
      const int SND_MEMORY = 4;
      const int SND_LOOP = 8;
      const int SND_NOSTOP = 16;
      int Snd_Options = SND_MEMORY;
      if (!bSynchronous)
      {
        Snd_Options += SND_ASYNC;
      }
      if (bNoDefault)
        Snd_Options += SND_NODEFAULT;
      if (bLoop)
        Snd_Options += SND_LOOP;
      if (bNoStop)
        Snd_Options += SND_NOSTOP;
      try
      {
        return PlaySound (audio, 0, Snd_Options);
      }
      catch (Exception)
      {
        if (!bIgnoreErrors)
        {
          throw;
        }
        else
        {
          return 0;
        }
      }
    }

    public static int PlaySound (string sSoundFile, bool bSynchronous, bool bIgnoreErrors)
    {
      return PlaySound (sSoundFile, bSynchronous, bIgnoreErrors, false, false, false);
    }

    public static int PlaySound (string sSoundFile, bool bSynchronous, bool bIgnoreErrors,
                                 bool bNoDefault, bool bLoop, bool bNoStop)
    {
      const int SND_ASYNC = 1;
      const int SND_NODEFAULT = 2;
      const int SND_LOOP = 8;
      const int SND_NOSTOP = 16;
      if (!System.IO.File.Exists (sSoundFile))
      {
        string WinDir = System.IO.Directory.GetParent (System.Environment.SystemDirectory).FullName;
        if (WinDir.Substring (WinDir.Length - 1, 1) != "\\")
          WinDir += "\\";
        if (System.IO.File.Exists (Application.StartupPath + "\\" + sSoundFile))
        {
          sSoundFile = Application.StartupPath + "\\" + sSoundFile;
        }
        else if (System.IO.File.Exists (Application.StartupPath + "\\" + sSoundFile + ".wav"))
        {
          sSoundFile = Application.StartupPath + "\\" + sSoundFile + ".wav";
        }
        else if (System.IO.File.Exists (WinDir + "media\\" + sSoundFile))
        {
          sSoundFile = WinDir + "media\\" + sSoundFile;
        }
        else if (System.IO.File.Exists (WinDir + "media\\" + sSoundFile + ".wav"))
        {
          sSoundFile = WinDir + "media\\" + sSoundFile + ".wav";
        }
        else if (!bIgnoreErrors)
        {
          throw new System.IO.FileNotFoundException ("Sound file doesn't exist.");
        }
      }
      int Snd_Options = 0;
      if (!bSynchronous)
      {
        Snd_Options = SND_ASYNC;
      }
      if (bNoDefault)
        Snd_Options += SND_NODEFAULT;
      if (bLoop)
        Snd_Options += SND_LOOP;
      if (bNoStop)
        Snd_Options += SND_NOSTOP;
      try
      {
        return sndPlaySoundA (sSoundFile, Snd_Options);
      }
      catch (Exception)
      {
        if (!bIgnoreErrors)
        {
          throw;
        }
        else
        {
          return 0;
        }
      }
    }

    [DllImport ("winmm.dll")]
    private static extern int sndPlaySoundA (string lpszSoundName, int uFlags);

    [DllImport ("winmm.dll")]
    private static extern int PlaySound (byte[] pszSound, Int16 hMod, long fdwSound);
  }
}