Getting a simple GMod dll to work.

[Howe]

The amount of trouble shooting that accompanies the first steps towards GMod module writing is in no way justified by the result, but nonetheless I have to get this working.

I compile this and save it as gmcl_test.dll and require("test") in game and it works:

#include <lua.hpp>
#include <windows.h>
#define NO_SDK
#include "GMLuaModule.h"

GMOD_MODULE(Init,Shutdown)

int Init(lua_State *L)
{
	return 0;
}

int Shutdown(lua_State *L)
{
	return 0;
}

works fine, but this simple progression:

#include <lua.hpp>
#include <windows.h>
#define NO_SDK
#include "GMLuaModule.h"

GMOD_MODULE(Init,Shutdown)

int Init(lua_State *L)
{
	lua_getfield(L, LUA_GLOBALSINDEX, "Msg");
	lua_pushstring(L, "Loaded\n");
	lua_call(L, 1, 0);

	return 0;
}

int Shutdown(lua_State *L)
{
	lua_getfield(L, LUA_GLOBALSINDEX, "Msg");
	lua_pushstring(L, "Unloaded\n");
	lua_call(L, 1, 0);

	return 0;
}

results in this error when I require() it in game:

error loading module 'test' from file 'c:\program files (x86)\steam\steamapps\****\garrysmod\garrysmod\lua\includes\modules\gmcl_test.dll':
	The specified module could not be found.

If you need more info about my Visual Studio setup, let me know.

[Howe]

50 views and no replys? This seems trivial, what am I doing wrong?

[turby]

Btw, where did you learn about how to write GMod modules? It looks interesting.

[Dr Magnusson]

You should really use the ILuaInterface that comes with modules, in which case your code would look like this:
[cpp]
#include <windows.h>
#define NO_SDK
#include "GMLuaModule.h"

GMOD_MODULE(Init,Shutdown)

int Init(lua_State *L)
{
Msg( "Loaded\n" );
return 0;
}

int Shutdown(lua_State *L)
{
Msg( "Unloaded\n");
return 0;
}[/cpp]

If you want to go the hard way about printing you should also do that via the ILuaInterface.

[AzuiSleet]

I actually found a good way to setup the headers and include the SDK.
[url]http://gmodmodules.googlecode.com/svn/trunk/gm_transmittools/gm_transmittools/gm_transmittools.h[/url]

#define _RETAIL 1
#define GAME_DLL 1
//hl2sdk-ob-2e2ec01be7aa off the sourcemod mercurial
#include <server/cbase.h>

I wish I had known sooner! This does all the includes you need for the SDK, and then you don't have to define NO_SDK. And like the previous poster said, you should be using the ILuaInterface interface and not the lua_ functions, you would have to GetProcAddress them or make a .lib and link against it.

[Howe]

Thanks guys, this helped a lot, I didn't realize GMod modules where so different from normal lua modules.

[Jinto]

Here is the import library for lua_shared.dll

[url]http://www.cdbarrett.com/dump/releases/lua_shared.lib[/url]

[Joe840120]

[QUOTE=Howe;18633023]The amount of trouble shooting that accompanies the first steps towards GMod module writing is in no way justified by the result, but nonetheless I have to get this working.

I compile this and save it as gmcl_test.dll and require("test") in game and it works:

#include <lua.hpp>
#include <windows.h>
#define NO_SDK

Thank you very much! I will test it!
#include "GMLuaModule.h"

GMOD_MODULE(Init,Shutdown)

int Init(lua_State *L)
{
	return 0;
}

int Shutdown(lua_State *L)
{
	return 0;
}

works fine, but this simple progression:

#include <lua.hpp>
#include <windows.h>
#define NO_SDK
#include "GMLuaModule.h"

GMOD_MODULE(Init,Shutdown)

int Init(lua_State *L)
{
	lua_getfield(L, LUA_GLOBALSINDEX, "Msg");
	lua_pushstring(L, "Loaded\n");
	lua_call(L, 1, 0);

	return 0;
}

int Shutdown(lua_State *L)
{
	lua_getfield(L, LUA_GLOBALSINDEX, "Msg");
	lua_pushstring(L, "Unloaded\n");
	lua_call(L, 1, 0);

	return 0;
}

results in this error when I require() it in game:

error loading module 'test' from file 'c:\program files (x86)\steam\steamapps\****\garrysmod\garrysmod\lua\includes\modules\gmcl_test.dll':
	The specified module could not be found.

If you need more info about my Visual Studio setup, let me know.[/QUOTE]

[editline]27th January 2012[/editline]

Thank you very much!
[QUOTE=Howe;18633023]The amount of trouble shooting that accompanies the first steps towards GMod module writing is in no way justified by the result, but nonetheless I have to get this working.

I compile this and save it as gmcl_test.dll and require("test") in game and it works:

#include <lua.hpp>
#include <windows.h>
#define NO_SDK
#include "GMLuaModule.h"

GMOD_MODULE(Init,Shutdown)

int Init(lua_State *L)
{
	return 0;
}

int Shutdown(lua_State *L)
{
	return 0;
}

works fine, but this simple progression:

#include <lua.hpp>
#include <windows.h>
#define NO_SDK
#include "GMLuaModule.h"

GMOD_MODULE(Init,Shutdown)

int Init(lua_State *L)
{
	lua_getfield(L, LUA_GLOBALSINDEX, "Msg");
	lua_pushstring(L, "Loaded\n");
	lua_call(L, 1, 0);

	return 0;
}

int Shutdown(lua_State *L)
{
	lua_getfield(L, LUA_GLOBALSINDEX, "Msg");
	lua_pushstring(L, "Unloaded\n");
	lua_call(L, 1, 0);

	return 0;
}

results in this error when I require() it in game:

error loading module 'test' from file 'c:\program files (x86)\steam\steamapps\****\garrysmod\garrysmod\lua\includes\modules\gmcl_test.dll':
	The specified module could not be found.

If you need more info about my Visual Studio setup, let me know.[/QUOTE]

[editline]27th January 2012[/editline]

Thank you! But could you tell me where can I get all of the header files used in programming?!
[QUOTE=Dr Magnusson;18637430]You should really use the ILuaInterface that comes with modules, in which case your code would look like this:
[cpp]
#include <windows.h>
#define NO_SDK
#include "GMLuaModule.h"

GMOD_MODULE(Init,Shutdown)

int Init(lua_State *L)
{
Msg( "Loaded\n" );
return 0;
}

int Shutdown(lua_State *L)
{
Msg( "Unloaded\n");
return 0;
}[/cpp]

If you want to go the hard way about printing you should also do that via the ILuaInterface.[/QUOTE]