From: Alex Fenton <aff28@...>
Date: 2007-08-29T20:40:05+09:00
Subject: Re: Ruby Swig passing Argument

zdk wrote:
> If I have swig module
> 
> %module example
> on2sc 	Flix2_CreateEx (FLIX2HANDLE *pFlix, const char *rpchost,
> int32_t timeout)
> 
>  How can I pass argument as a pointer in Ruby? ( I mean the
> "FLIX2HANDLE" type)
> 
> require 'example'
> h = Example.Flix2_CreateEx(....<how?>...,"localhost",0)

SWIG is able to handle pointers without any particular help. But if you 
need to be able to pass a FLIX2HANDLE (whatever that is) as an argument, 
then you need to wrap that in Ruby as well, using SWIG, so a Ruby object 
can be linked to a FLIX2HANDLE.

You might have a look at the SQLite3 SWIG wrapper. The SQLite3 C API 
makes extensive use of a db handle as a first argument, but the Ruby API 
makes a nice job of hiding this from the user.

Alex