PacketPlayOutPlayerInfo help

Quick question: What does each of the arguments in PlayerPlayOutPlayerInfo(String, Boolean, Integer) stand for? I'm trying to hide players from the tab list using this:

Code:

for (Player p : Bukkit.getOnlinePlayers())
{
    if (!p.isOp() || event.getPlayer().getName().equals(p.getName()))
    {
        ((CraftPlayer) p).getHandle().playerConnection.sendPacket(new PacketPlayOutPlayerInfo(p.getPlayerListName(), false, 1));
        continue;
    }
    else
    {
        if (p.isOp()) p.sendMessage(Constants.prefix + p.getDisplayName() + " has connected.");
    }
}

and none of the players are being hidden.