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

[=?Utf-8?B?S3VlaXNoaW9uZyBUdQ==?=]

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?

[David Lowndes]

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

>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::Pl ay for instance.

Dave

[=?Utf-8?B?S3VlaXNoaW9uZyBUdQ==?=]

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

Dear Dave:

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

[DllImport("user 32.dll", SetLastError=tr ue)]
static bool MessageBeep(UIN T 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

"David Lowndes" wrote:

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::Pl ay for instance.
>
Dave
>

[David Lowndes]

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

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

>program
>
>[DllImport("user 32.dll", SetLastError=tr ue)]
>static bool MessageBeep(UIN T type);

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

Just #include<window s.hand 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<window s.h>

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

using namespace System;

int main(array<Syst em::String ^^args)
{
Console::WriteL ine(L"Hello World");
MessageBeep( -1 );

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

Dave

[=?Utf-8?B?S3VlaXNoaW9uZyBUdQ==?=]

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

Dear Dave:

"David Lowndes" wrote:

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

[DllImport("user 32.dll", SetLastError=tr ue)]
static bool MessageBeep(UIN T type);

>
You don't need to go to that rigmarole - this is C++ not C# :)
>
Just #include<window s.hand add the call to the API.
>

If I don't do the DllImport, the IDE will complain unresolved token
"MessageBee p" 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:
>
#include "stdafx.h"
#include<window s.h>
>
#pragma comment( lib, "User32.lib " )
>
using namespace System;
>
int main(array<Syst em::String ^^args)
{
Console::WriteL ine(L"Hello World");
MessageBeep( -1 );
>
System::Media:: SystemSounds::B eep->Play();
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

[David Lowndes]

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

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

>VS2008:
>>
>#include "stdafx.h"
>#include<windo ws.h>
>>
>#pragma comment( lib, "User32.lib " )
>>
>using namespace System;
>>
>int main(array<Syst em::String ^^args)
>{
> Console::WriteL ine(L"Hello World");
> MessageBeep( -1 );
>>
> System::Media:: SystemSounds::B eep->Play();
> 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.

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

Dave

[=?Utf-8?B?S3VlaXNoaW9uZyBUdQ==?=]

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

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