RE: Newbie... trying to bring interactivity in C application using LUA...!!

[Subhash_Patil <Subhash_Patil@...>]

SCSL_Draw_Rect(lua_State*L)
{
        GUI_Color_t asvDrawColor = {31, 31, 0};

        int i,j[3];
        int n = lua_gettop(L);

      for (i = 1; i <= n; i++){
        if (!lua_isnumber(L, i)){
           lua_pushstring(L, "incorrect argument");
           lua_error(L);
         }
          j[(i-1)] = lua_tonumber(L, i);

          printf("from stack %d\n",j[(i-1)]);
      }
        ML_GUI_DrawRectangle(j[1], j[2], j[3], &asvDrawColor);
}

-----Original Message-----
From: lua-bounces@bazar2.conectiva.com.br [mailto:lua-bounces@bazar2.conectiva.com.br] On Behalf Of Jerome Vuarand
Sent: Thursday, July 30, 2009 8:59 PM
To: Lua list
Subject: Re: Newbie... trying to bring interactivity in C application using LUA...!!

2009/7/30 Subhash_Patil <Subhash_Patil@satyam.com>:
> I am trying to bring some interactivity to my c appliaction,
>
> To begin with, I am trying to draw a rectangle which is defined in Gui.c
> from LUA in my application Application_main.c.
>
> [...]
>
> Int Lua_main( void )
> {
>             int error;
>             lua_State *L = lua_open();   /* opens Lua */
>             luaL_Reg Creg;
>
>             lua_Integer n;
>             luaL_openlibs(L);
>
>             printf("luaL_openlibs\n");
>             lua_pushcfunction(L, SCSL_Draw_Rect(L));
>             printf("lua_pushcfunction\n");
>
> /*            n = 0;
>             lua_pushinteger(L, n);*/
>             n = 100;
>             lua_pushinteger(L, n);
>             n = 100;
>             printf("lua_pushinteger\n");
>             lua_pushinteger(L, n);
>             n = 300;
>             lua_pushinteger(L, n);
>             n = 300;
>             lua_pushinteger(L, n);
>             printf("lua_call\n");
>             lua_call( L, 5, 0);
>             printf("lua_call\n");
>             lua_close(L);
>
>             return 0;
> }
>
> I get all the prints in the Lua_main function. I see all the prints on the
> console but not the rectangle.
>
> Can you help me out in this regard.
>
> Thanks in advance.

You forgot to give us the content of SCSL_Draw_Rect.

Lua is not an acronym, you shouldn't capitalize it (see
http://www.lua.org/about.html#name).

Please send emails as plain text, not html, especially when you paste code.


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