OpenEuphoria

RE: Sequence-Atom-DLL

• Posted by Christopher B <president at insight-concepts.com> Jun 02, 2003
• 382 views

Hi Robert,

I was not aware of E_INTEGER  E_ATOM  E_SEQUENCE....  :(

I think I am going to have to look over the ref manual again :)

Best regards
Chris






Robert Craig wrote:
> 
> 
> president at insight-concepts.com wrote:
> > I have been practicing creating and using .DLLs with Euphoria and the C 
> > Translator.
> > 
> > I created a small .dll with a procedure File_Compress(sequence infile, 
> > sequence outfile, 
> > sequence setting)
> > 
> > When trying to call the procedure from a test application, I get an 
> > error "Fatal run-time error: device or file name must be a sequence"
> > 
> > I tried changing the data to a sequence and then I received and error 
> > that arguments to C routines must be atoms.
> 
> When calling a .dll routine that's written in Euphoria,
> you can pass any kind of Euphoria data as arguments to
> the routine, but you must declare the routine using
> define_c_proc/func and the E_ types (E_INTEGER, E_ATOM, ...),
> not the C_ types (C_INT, ...).
> e.g.
>       fc = define_c_proc(lib, "File_Compress",
>                          {E_SEQUENCE, E_SEQUENCE, E_SEQUENCE})
> 
>       c_proc(fc, {"infile.dat", "outfile.dat", {1,2,3}})
> 
> 
> Regards,
>     Rob Craig
>     Rapid Deployment Software
>     http://www.RapidEuphoria.com
> 
>