From: Tom Sawyer <transami@...>
Date: 2002-12-12T06:47:52+09:00
Subject: Ruby/DL how to struct

i'm trying to write a binding for the ggi library using Ruby/DL, but i am 
unclear on how to best deal with a couple of issues.

for instance given this from the header file:
  typedef signed short sint16;
  typedef struct { sint16 x, y; } ggi_coord;

how does one translate this to Ruby/DL? i put:
  typealias "sint16", "signed short" 
  Ggi_coord = struct [ "sint16 x", "sint16 y" ]

but it dosen't work, saying that sint16 is an unknown type.

and what about:
  typedef struct { uint16 r,g,b,a; } ggi_color;
  typedef struct { uint16 size; ggi_color *data; } ggi_clut;

i put:
  Ggi_color = struct [ "uint16 r", "uint16 g", "uint16 b", "uint16 a" ] 
  Ggi_clut = struct [ "uint16 size", "Ggi_color data *" ] 

which bombs on Ggi_color data *.

i'm not a c coder so i'm sort of pecking my way through this. any help is 
greatly appreciated.

-transami