lame_enc.dll and VB.NET

  • Thread starter Thread starter kimiraikkonen
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kimiraikkonen

Hello,
I wonder a thing about free mp3 encoder lame if it supports to be used
under Visual Basic .NET. I searched the net then i read sth than Lame
is not accessible under Visual Basic directly. Lame was written under
C language, so is that the reason that lame_enc.dll cannot be used in
Visual Basic projects like a toolbox-added activeX control?

How can i use lame_enc.dll under Visual Basic .NET and what differs
interacting a dll without including it as a COM component from control
toolbox?

Thanks :-)
 
Hello,
I wonder a thing about free mp3 encoder lame if it supports to be used
under Visual Basic .NET. I searched the net then i read sth than Lame
is not accessible under Visual Basic directly. Lame was written under
C language, so is that the reason that lame_enc.dll cannot be used in
Visual Basic projects like a toolbox-added activeX control?

How can i use lame_enc.dll under Visual Basic .NET and what differs
interacting a dll without including it as a COM component from control
toolbox?

Thanks :-)
Click to expand...

I haven't ever used lame, but I did look at it once a couple of years
ago... I believe that it exposes an api that you should be able to
access via P/Invoke.
 
I haven't ever used lame, but I did look at it once a couple of years
ago... I believe that it exposes an api that you should be able to
access via P/Invoke.
Click to expand...

It would be great if Lame was an COM-compatible control even it's free.
 
It would be great if Lame was an COM-compatible control even it's free.- Hide quoted text -

- Show quoted text -
Click to expand...

Well, you could always create one - or search, maybe someone else has
already done it ;)
 
Hi Tom,
I haven't ever used lame, but I did look at it once a couple of years
ago... I believe that it exposes an api that you should be able to
access via P/Invoke.
Click to expand...

It has, the Interface is exposed as Standard-C Exports and
you can easlily access it via pinvoke,...

See here:

beCloseStream
beDeinitStream
beEncodeChunk
beEncodeChunkFloatS16NI
beFlushNoGap
beInitStream
beVersion
beWriteInfoTag
beWriteVBRHeader


Regrds

Kerem


--
 
Hi Tom,


It has, the Interface is exposed as Standard-C Exports and
you can easlily access it via pinvoke,...

See here:

beCloseStream
beDeinitStream
beEncodeChunk
beEncodeChunkFloatS16NI
beFlushNoGap
beInitStream
beVersion
beWriteInfoTag
beWriteVBRHeader

Regrds

Kerem

--
-----------------------
Beste Grüsse / Best regards / Votre bien devoue
Kerem Gümrükcü
Microsoft Live Space:http://kerem-g.spaces.live.com/
Latest Open-Source Projects:http://entwicklung.junetz.de
Click to expand...

Hi,
Could you sample some code includes P/invoke for VB.NET?

Thanks.
 
Hi Tom,

see here:

VB Example:http://www.codeproject.com/KB/audio-video/LameShell.aspx?print=true

Other useful Code:http://www.csharphelp.com/archives/.../group/microsoft.public.dotnet.languages.csha...

Regards

Kerem

--
-----------------------
Beste Grüsse / Best regards / Votre bien devoue
Kerem Gümrükcü
Microsoft Live Space:http://kerem-g.spaces.live.com/
Latest Open-Source Projects:http://entwicklung.junetz.de
Click to expand...

Hi Kerem,
Thanks for the links replying regarding to Tom but i'm not Tom :-),
however i was aware of some them like codeproject's one but that one
is not well-detailed and assumes that you're experienced.

I don't have much experience about invoking methods, could you
describe and say the differences between invoke, begininvoke,
endinvoke and the important one P/invoke?

Is it about .NET's platform invoke?

Thanks.
 
Hi Kerem,
Thanks for the links replying regarding to Tom but i'm not Tom :-),
however i was aware of some them like codeproject's one but that one
is not well-detailed and assumes that you're experienced.

I don't have much experience about invoking methods, could you
describe and say the differences between invoke, begininvoke,
endinvoke and the important one P/invoke?

Is it about .NET's platform invoke?
Click to expand...

Yep, it's about Platfrom Invoke - not the same as invoke, begininvoke,
endinvoke. Those are dealing with delegates. Your going to want to
look at the documentation on VB.NET's declare statement. Basically,
it's a way to invoke native methodes form dlls.

It may sound like a daunting task, but in the end it's not really that
difficult.
 
Yep, it's about Platfrom Invoke - not the same as invoke, begininvoke,
endinvoke. Those are dealing with delegates. Your going to want to
look at the documentation on VB.NET's declare statement. Basically,
it's a way to invoke native methodes form dlls.

It may sound like a daunting task, but in the end it's not really that
difficult.
Click to expand...

http://www.codeproject.com/KB/audio-video/LameShell.aspx?print=true

This tutorial wasn't mentioned well, first of all, it should have told
the procedures like referencing to lame.exe.
However still it can't be done, if you try to reference it, you get
the error: "lame.exe could not be loaded, make sure that file is
accessible, and that's a valid assembly or COM component". Either you
can't add it as a control to toolbox.

The only thing that you can use it to run lame through command prompt
under the project that you're gonna create(i've done it). But the
thing wasn't what i was looking for.
 
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