Re: require dll

[Wim Langers <wim.langers@...>]

Thanks that did the trick ,

That is, after I also changed the case in the require statement (apparently case sensitive).

So for the record :

C extension as a DLL
_Xx.c
  ...
  static const luaL_reg _Xx[] = ...
  ...
  __declspec(dllexport) int luaopen__Xx (lua_State *L)
  {
    luaL_openLib(L,"_Xx",_Xx,0);
    return 1;
  }

compile to _Xx.dll

in Lua script
  ...
  require("_Xx")
  ...


Wim

On Fri, Apr 17, 2009 at 12:01 PM, Michael Bauroth <Michael.Bauroth@falcom.de> wrote:

I know ... but you use

_IupRobot.dll' with a 'luaopen__IupRobotLib

instead of

_IupRobot.dll' with a 'luaopen__IupRobot

and require "_IupRobot"

Regards
Michael


Wim Langers schrieb:

Michael : I am working with the two underscores (just tried with one to make sure), but thanks for confirming.

Petr : I do use __declspec (otherwise it wouldn't even work with package.loadlib ? I suppose ?)

Wim

On Fri, Apr 17, 2009 at 10:36 AM, Petr Štetiar <ynezz@true.cz <mailto:ynezz@true.cz>> wrote:

   Wim Langers <wim.langers@adrias.biz <mailto:wim.langers@adrias.biz>>

   [2009-04-17 09:51:37]:

    > I wrote a C extension to Lua and can load it with 'package.loadlib'.
    > I somehow thought that I could load it with require (and not hardcode
    > paths). Require finds my dll but then complains that it can't
   find 'The
    > specified procedure' ?
    > Looked all over the place to find out what's going on, but no
   success.
    > I also read something about naming conventions : I named the dll
    > '_IupRobot.dll' with a 'luaopen__IupRobotLib' (two underscores)
   and the
    > corresponding lua code 'IupRobot.lua'. Also tried with
   'luaopen_IupRobotLib'
    > (one underscore) because I read something about automatically
   removing the
    > extra underscore.

   Don't forget, that on Windows luaopen_* function should be exported
   either using
   "__declspec(dllexport)" or using .def file. Try to declare your
   function like
   something like this "__declspec(dllexport) int
   luaopen__IupRobotLib(lua_State *L)".

   --ynezz