[REBOL] Interfacing dll library in pascal format

From: th72::dds::nl at: 19-Dec-2006 20:08

Hello list,

I am trying to interface the dallas TMex (ibutton) library to rebol.
I'ts programmed (the library) in pascal so I don't know if it is
possible to interface it with rebol. Sofar it is possible to open a
session and do the first setup. After that.....?

The problem is with:

short far pascal TMFirst(
long session_handle,    // session handle for the desired 1-Wire network
void far *state_buffer  // state buffer provided for the 1-Wire network
session
);

and:

short far pascal TMRom(
long session_handle,    // session handle for the desired 1-Wire network
void far *state_buffer, // state buffer provided for the 1-Wire network
session
short far *ROM         // buffer to read or write from the internal ROM
buffer
);

What do I do with the *state_buffer?
The doc says:

state_buffer

Specifies a pointer to a memory location that TMEX keeps all of the
state information for the 1-Wire networks. This parameter is required by
most TMEX API functions.

I tried in Rebol something like this:

tmfirst: make routine! [
   session [integer!]
   buffer [string!]
   return: [integer!]] tmex-lib "TMFirst"

I tried it even with a struct! but also no luck.

How do I define "buffer" and how do I pass the buffer-pointer to TMrom?
Rebol crashes or the buffer stay's empty.

Has someone tried this before or is this something way above my head???

Thanks for your time!

Tim

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