'Memory' does not exist in current context.

Question

In the Microsoft wave sample for C# ( http://msdn.microsoft.com/en-us/library/aa446573.aspx ) Memory class is used. but in visual studio 2008 there is no reference to 'Memory' class or interface. Error is "The name 'Memory' does not exist in current context.". I can`t find any reference for this class.

            if (lpData == IntPtr.Zero)
                lpData = Memory.LocalAlloc(Memory.LMEM_FIXED, (uint)bufferLength);

Please help me to use this sample.

Answer 1

Is this relevant?

http://social.msdn.microsoft.com/Forums/en-US/3ab12539-0f1f-491a-8b1b-b0d76a73dd0b/wavefile-issues

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Paul Linton

Answer 2

Hi,

the memory class is part of the source provided with the article,
see .NET Compact Framework Sample: P/Invoke Library

Regards, Elmar

Answer 3

Also note that this is unsafe code. Also this article is out of date by a decade. It applies to .NET 1.0 (not even 1.1, 1.0!)

If all you want to do is paly .wav files, just use the SoundPlayer Class:

http://msdn.microsoft.com/en-us/library/system.media.soundplayer.aspx

Works since .NET 2.0

If you want to record sound there have likely also been breakthroughs since that code was written:

http://stackoverflow.com/questions/510019/capture-a-microphone-audio-stream-using-net-framework

http://stackoverflow.com/questions/16162976/record-sound-in-good-quality

http://voicerecorder.codeplex.com/

http://channel9.msdn.com/coding4fun/articles/NET-Voice-Recorder

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Let's talk about MVVM: http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/b1a8bf14-4acd-4d77-9df8-bdb95b02dbe2 Please mark post as helpfull and answers respectively.