Get last weapon damage

using GTA;
using GTA.Native;
using System;
using System.Collections.Generic;
using System.Windows.Forms;


public class ScriptTest : Script
{
    public ScriptTest()
    {
        Tick += OnTick;
        KeyDown += OnKeyDown;
        KeyUp += OnKeyUp;

    }
    List<WeaponHash> Guns = new List<WeaponHash> {WeaponHash.Pistol,WeaponHash.PumpShotgun };
    void OnTick(object sender, EventArgs e)
    {
        Ped Player = Game.Player.Character;
        WeaponHash Weapon = WeaponHash.Unarmed;

        foreach (WeaponHash gun in Guns)
        {
            if (Function.Call<bool>(Hash.HAS_PED_BEEN_DAMAGED_BY_WEAPON, Player, (int)gun))
            {
                Weapon = gun;
                break;
            }
        }
        DisplayHelpTextThisFrame("Player last damaged by "+ Weapon.ToString());
    }
    void OnKeyDown(object sender, KeyEventArgs e)
    {

    }
    void OnKeyUp(object sender, KeyEventArgs e)
    {

    }

    public static void DisplayHelpTextThisFrame(string text)
    {
        Function.Call(Hash._SET_TEXT_COMPONENT_FORMAT, "STRING");
        Function.Call(Hash._ADD_TEXT_COMPONENT_STRING, text);
        Function.Call(Hash._DISPLAY_HELP_TEXT_FROM_STRING_LABEL, 0, false, true, -1);
    }
}