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Posted by Mumia W. on June 20, 2007, 11:44 am
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On 06/20/2007 08:53 AM, jis wrote:
> Hi,
>
> I have a dll by name AduHid.dll.
> There is a function with prototype
>
> void * _stdcall OpenAduDeviceBySerialNumber(const char*
> psSerialNUmber,unsigned long iTimeout);
>
> I used the following perl code to call the above function
>
> use Win32::API;
> my $function = Win32::API->new(
> 'AduHid.dll','int OpenAduDeviceBySerialNumber(const
> char* psSerialNUmber,unsigned long iTimeout)' );
>
> my $return = $function->Call("A03744",0);
>
> But i get an error
> 1. unknown parameter type const and unsigned
> 2. Argument A03744 isnt numeric in subroutine entry.
>
> I tried removing const and unsigned.Then I got an error
> "Modification of read only value attempted".
>
> Where am i going wrong?
> Please advise.
>
> regards,
> jis
>
I don't have access to a Windows computer, but I was able to download
the CPAN source for Win32::API. Read the POD for Win32::API::Types. It
says you should examine the __DATA__ section of Win32/API/Types.pm to
see a list of supported types.
You might need to specify a prototype like this:
int OpenAduDeviceBySerialNumber(PCHAR psSerialNUmber, ULONG iTimeout)
I hope this helps some.
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