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PlaySound: A Better Way to Play Wav Files in C#

, 30 Mar 2011 CPOL
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Using PlaySound with PInvoke.

The other day I was whipping up a fun utility which played some Wav files. I was giving this to people whose desktop was Windows Server 2008 so using the Windows Media Player COM object wasn’t an option and SoundPlayer didn’t seem to work with any of the Wav files I had for some reason.

Back in my C++ days, I used to do this all the time with winmm.dll’s PlaySound (and have a piece of freeware which uses this to a great extent).

Well, once again, as a C# programmer, I am saved by PInvoke!

public static class Wav
{
    [DllImport("winmm.dll", SetLastError = true)]
    static extern bool PlaySound(string pszSound, UIntPtr hmod, uint fdwSound);

    [Flags]
    public enum SoundFlags
    {
        /// <span class="code-SummaryComment"><summary>play synchronously (default)</summary>
</span>        SND_SYNC = 0×0000,
        /// <span class="code-SummaryComment"><summary>play asynchronously</summary>
</span>        SND_ASYNC = 0×0001,
        /// <span class="code-SummaryComment"><summary>silence (!default) if sound not found</summary>
</span>        SND_NODEFAULT = 0×0002,
        /// <span class="code-SummaryComment"><summary>pszSound points to a memory file</summary>
</span>        SND_MEMORY = 0×0004,
        /// <span class="code-SummaryComment"><summary>loop the sound until next sndPlaySound</summary>
</span>        SND_LOOP = 0×0008,
        /// <span class="code-SummaryComment"><summary>don’t stop any currently playing sound</summary>
</span>        SND_NOSTOP = 0×0010,
        /// <span class="code-SummaryComment"><summary>Stop Playing Wave</summary>
</span>        SND_PURGE = 0×40,
        /// <span class="code-SummaryComment"><summary>don’t wait if the driver is busy</summary>
</span>        SND_NOWAIT = 0×00002000,
        /// <span class="code-SummaryComment"><summary>name is a registry alias</summary>
</span>        SND_ALIAS = 0×00010000,
        /// <span class="code-SummaryComment"><summary>alias is a predefined id</summary>
</span>        SND_ALIAS_ID = 0×00110000,
        /// <span class="code-SummaryComment"><summary>name is file name</summary>
</span>        SND_FILENAME = 0×00020000,
        /// <span class="code-SummaryComment"><summary>name is resource name or atom</summary>
</span>        SND_RESOURCE = 0×00040004
    }

    public static void Play(string strFileName)
    {
        PlaySound(strFileName, UIntPtr.Zero, 
           (uint)(SoundFlags.SND_FILENAME | SoundFlags.SND_ASYNC));
    }
}

Example:

FileInfo fi = new FileInfo(sFile);
Wav.Play(fi.FullName);

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Chris_Green
Architect Avaya Inc.
Ireland Ireland
Formerly a C++ client developer, nowadays I'm all about C# and ASP.NET. Over the years I have mastered some and played with many aspects of .NET.
 
Follow my blog as I catalogue the more arcane problems I encounter and their solutions at CodingLifestyle.com

Comments and Discussions

 
QuestionCompile errors in implementing this solution PinmemberAaditya200611-Jul-12 19:52 
AnswerRe: Compile errors in implementing this solution Pinmembernewkie12-Jul-12 1:00 
GeneralRe: Compile errors in implementing this solution PinmemberMember 904013713-Sep-12 7:06 
GeneralRe: Compile errors in implementing this solution PinmemberMember 904013713-Sep-12 7:37 
GeneralRe: Compile errors in implementing this solution PinprofessionalFrank T. Clark8-May-13 5:03 
GeneralNice info Pinmemberlukilooks30-Mar-11 20:04 

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