this happens because windows API code usually have two versions: an Ascii
version where chars are 8-bit ASCII (with the suffix A, and used mainly in
9x code) and other where the chars are 2-byte unicode chars with the W
suffix, used mainly in 2000/XP stuff (guess W means wide in the sense of
widestring)
On 11/14/06, Gabor Boros <[EMAIL PROTECTED]> wrote:
Many thanks Felipe, the problem is the exported name(s).
The exported names is SCAN_AllocateBuffer_A and SCAN_AllocateBuffer_W.
Thanks again!
Gabor
Felipe Monteiro de Carvalho írta:
> Can you show us the c declaration of the function you are calling? It
> should be on a .h file.
>
> Also, you should put an way to verify if the calls are working, like:
>
> DLL_Handle:=LoadLibrary('SCNAPI32.DLL');
>
> if DLL_Handle = nil then raise EException.Create('Could not load
> library');
>
> Pointer(SCAN_AllocateBuffer):=GetProcedureAddress(DLL_Handle,
> 'SCAN_AllocateBuffer');
>
> if Pointer(SCAN_AllocateBuffer) = nil then raise
> EException.Create('Could not load procedure');
>
> One possibility is that this C library uses name mangling, and the
> function has a different name from the canonical one. You can check
> all function names exported by the function using this software:
>
> http://wiki.lazarus.freepascal.org/Libview
>
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--
Daniel
"Let us change our traditional attitude to the construction of programs.
Instead of imagining that our main task is to instruct a computer what to
do, let us concentrate rather on explaining to human beings what we want a
computer to do." (Donald Knuth)
"Yes, technogeeks can be funny, even if only to each other." (
http://www.boogieonline.com/revolution/science/humor/)"
"Man is driven to create; I know I really love to create things. And while
I'm not good at painting, drawing, or music, I can write software."
(Yukihiro Matsumoto, a.k.a. ``Matz'')
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