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git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@1281 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
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RKrom 2011-07-17 11:54:05 +00:00
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Greenshot/Helpers/SoundHelper.cs
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/*
* Greenshot - a free and open source screenshot tool
* Copyright (C) 2007-2010 Thomas Braun, Jens Klingen, Robin Krom
*
* For more information see: http://getgreenshot.org/
* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.IO;
using System.Reflection;
using System.Resources;
using System.Runtime.InteropServices;
using Greenshot.UnmanagedHelpers;
/// <summary>
/// Create to fix the sometimes wrongly played sample, especially after first start from IDE
/// See: http://www.codeproject.com/KB/audio-video/soundplayerbug.aspx?msg=2487569
/// </summary>
namespace Greenshot.Helpers {
/// <summary>
/// Description of SoundHelper.
/// </summary>
public class SoundHelper {
private static readonly log4net.ILog LOG = log4net.LogManager.GetLogger(typeof(SoundHelper));
private static GCHandle? gcHandle = null;
private static byte[] soundBuffer = null;
private SoundHelper() {
// Prevent instanciating
}
public static void Initialize() {
try {
ResourceManager resources = new ResourceManager("Greenshot.Sounds", Assembly.GetExecutingAssembly());
soundBuffer = (byte[])resources.GetObject("camera");
// Pin sound so it can't be moved by the Garbage Collector, this was the cause for the bad sound
gcHandle = GCHandle.Alloc(soundBuffer, GCHandleType.Pinned);
} catch (Exception e) {
LOG.Error("Error initializing.", e);
}
}
public static void Play() {
SoundFlags flags = SoundFlags.SND_ASYNC | SoundFlags.SND_MEMORY;
try {
if (soundBuffer != null) {
WinMM.PlaySound(gcHandle.Value.AddrOfPinnedObject(), (UIntPtr)0, (uint)flags);
} else {
WinMM.PlaySound((byte[])null, (UIntPtr)0, (uint)flags);
}
} catch (Exception e) {
LOG.Error("Error in play.", e);
}
}
public static void Deinitialize() {
try {
if (gcHandle != null) {
WinMM.PlaySound((byte[])null, (UIntPtr)0, (uint)0);
gcHandle.Value.Free();
gcHandle = null;
}
} catch (Exception e) {
LOG.Error("Error in deinitialize.", e);
}
}
[Flags]
public enum SoundFlags : int {
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
}
}
}