How to get lua state??

#include <Windows.h>
#include <ILuaInterface.h>

#define ver "LUASHARED003"

typedef void* (*CreateInterfaceFn)(const char *pName, int *pReturnCode);

typedef int(*load)(lua_State *, const char *);

typedef int(*pcall)(lua_State *, int, int, int);

BOOL WINAPI DllMain(
    HINSTANCE h,
    DWORD fdwReason,
    LPVOID lp)
{
    if (fdwReason == DLL_PROCESS_ATTACH) {


        HMODULE luash = GetModuleHandle(L"lua_shared.dll");

        CreateInterfaceFn sh_factory = (CreateInterfaceFn) GetProcAddress(luash, "CreateInterface");

        load Lua_Load = (load) GetProcAddress(luash, "luaL_loadstring");

        pcall Lua_Call = (pcall) GetProcAddress(luash, "lua_pcall");
        
    }

    return TRUE;
}