/// <summary>
/// Gets up value (see lua docs)
/// </summary>
/// <param name = "funcindex">see lua docs</param>
/// <param name = "n">see lua docs</param>
/// <returns>see lua docs</returns>
/// <author>Reinhard Ostermeier</author>
public string GetUpValue(int funcindex, int n)
{
return(LuaCore.lua_getupvalue(luaState, funcindex, n).ToString());
}