[Gambas-devel] C/c++ Component

[Rob]

On Monday 09 June 2003 11:26, DA Corp. wrote:
>I have this file. It was write in C. This file is used to write a number in
>the parallel port. 0x37 is 55 in hexadecimal number. I want to replace it
>for a variable in Gambas. for example, X: =0D
>#include <dos.h>=0D

Sure looks like a DOS C program, which won't help you under Linux.  If you 
just want to write a number to the parallel port, open /dev/lp0 (or lp1 or 
whatever, or maybe /dev/parport0 or parport1 if writing to lp0 "cooks" your 
data) as a file and write to it.... it's only if you need raw read-write 
access that it becomes an issue in Gambas.  As I've said before, a workaround 
would be something like "cu" that talks to the parallel instead of the serial 
port, but I don't know if such a thing exists.  

That discussion would be better suited for the -user list unless you want to 
try to find some Linux parallel port C source and turn it into a Gambas 
component, which I'm sure lots of people would appreciate.  (If that's the 
case, Ken Schrock's current work learning how to write Gambas components 
should be useful to you - read the archives.)  Maybe you could write a Gambas 
component for libieee1284, a generalized parallel port interface library that 
even works under other operating systems:

http://cyberelk.net/tim/libieee1284/

Please turn off the HTML in your mail when sending to mailing lists, by the 
way.

Rob