How to create a sound from a VC++ .NET program

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Kueishiong Tu - 10 May 2008 16:15 GMT

I want to create a sound to alert the user when some event occurs.
How do I do it from my VC++ .NET window form program?

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David Lowndes - 10 May 2008 18:09 GMT

>I want to create a sound to alert the user when some event occurs.
>How do I do it from my VC++ .NET window form program?

MessageBeep would probably be the easiest API to use. If you need a
more complex facility, have a look at the PlaySound API. For the .Net
world, it looks like similar facilities are available from the
System.Media namespace - SystemSound::Play for instance.

Dave

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Kueishiong Tu - 10 May 2008 19:00 GMT

Dear Dave:

I use the following code to call MessageBeep from my VC++ .net window form
program

[DllImport("user32.dll", SetLastError=true)]
static bool MessageBeep(UINT type);

MessageBeep(-1);

However I do not hear a beep sound.

Also I do not see the System::Media namespace in my Visual Studio 2003 .NET.

Kueishiong Tu

> >I want to create a sound to alert the user when some event occurs.
> >How do I do it from my VC++ .NET window form program?
[quoted text clipped - 5 lines]
>
> Dave

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David Lowndes - 10 May 2008 23:39 GMT

>I use the following code to call MessageBeep from my VC++ .net window form
>program
>
>[DllImport("user32.dll", SetLastError=true)]
>static bool MessageBeep(UINT type);

You don't need to go to that rigmarole - this is C++ not C# :)

Just #include<windows.h> and add the call to the API.

>MessageBeep(-1);

Try MessageBeep(MB_OK) - it should produce whatever system sound you
have set up in the Control Panel Sound setting.

>Also I do not see the System::Media namespace in my Visual Studio 2003 .NET.

I don't have VS2003 installed, but the following works for me with
VS2008:

#include "stdafx.h"
#include<windows.h>

#pragma comment( lib, "User32.lib" )

using namespace System;

int main(array<System::String ^> ^args)
{
Console::WriteLine(L"Hello World");
MessageBeep( -1 );

System::Media::SystemSounds::Beep->Play();
return 0;
}

Dave

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Kueishiong Tu - 11 May 2008 00:52 GMT

Dear Dave:

> >I use the following code to call MessageBeep from my VC++ .net window form
> >program
[quoted text clipped - 5 lines]
>
> Just #include<windows.h> and add the call to the API.

If I don't do the DllImport, the IDE will complain unresolved token
"MessageBeep" when I try to build the solution in VS2003 VC++ .NET.

> I don't have VS2003 installed, but the following works for me with
> VS2008:
[quoted text clipped - 14 lines]
> return 0;
> }

I try the same code on my VS2008 VC++ express, but I still get no sound even
I turn the speaker to the loudest level and my window media player does play
sound.

Kueishiong Tu

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David Lowndes - 11 May 2008 09:34 GMT

>> I don't have VS2003 installed, but the following works for me with
>> VS2008:
[quoted text clipped - 18 lines]
>I turn the speaker to the loudest level and my window media player does play
>sound.

If you use the Control Panel, Sound applet and play the default beep
from there, does that work?

Dave

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Kueishiong Tu - 11 May 2008 13:25 GMT

> If you use the Control Panel, Sound applet and play the default beep
> from there, does that work?
>
> Dave

It does not initially. I fix it. Now it works fine. Thank you very much for
your help.

Kueishiong Tu

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How to create a sound from a VC++ .NET program

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