C# Mouse dinleyicisi nasıl yapabilirim?

using System;
using System.Drawing;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace ekranresim
{
    public partial class Form1 : Form
    {
        [DllImport("user32.dll", SetLastError = true)]
        private static extern IntPtr SetWindowsHookEx(int idHook, LowLevelKeyboardProc lpfn, IntPtr hMod, uint dwThreadId);

        [DllImport("user32.dll", SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool UnhookWindowsHookEx(IntPtr hhk);

        [DllImport("user32.dll", SetLastError = true)]
        private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, IntPtr lParam);

        [DllImport("kernel32.dll", SetLastError = true)]
        private static extern IntPtr GetModuleHandle(string lpModuleName);

        private const int WH_KEYBOARD_LL = 13;
        private const int WM_KEYDOWN = 0x0100;
        private const int VK_XBUTTON1 = 0x05;


        private delegate IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam);
        private event Action XMouseButton1Pressed;

        private IntPtr hookId = IntPtr.Zero;

        public Form1()
        {
            InitializeComponent();

            this.Load += (s, e) => SetHook();
            this.FormClosing += (s, e) => Unhook();
            
            XMouseButton1Pressed += () =>
            {
                CaptureScreen();
            };
        }

        private void SetHook()
        {
            using (ProcessModule module = Process.GetCurrentProcess().MainModule)
            {
                hookId = SetWindowsHookEx(WH_KEYBOARD_LL, LowLevelKeyboardProcCallback, GetModuleHandle(module.ModuleName), 0);
            }
        }

        private void Unhook()
        {
            UnhookWindowsHookEx(hookId);
        }

        private IntPtr LowLevelKeyboardProcCallback(int nCode, IntPtr wParam, IntPtr lParam)
        {
            if (nCode >= 0 && wParam == (IntPtr)WM_KEYDOWN)
            {
                int vkCode = Marshal.ReadInt32(lParam);
                if (vkCode == VK_XBUTTON1)
                {
                    XMouseButton1Pressed?.Invoke();
                }
            }

            return CallNextHookEx(hookId, nCode, wParam, lParam);
        }

        private void CaptureScreen()
        {
            using (Bitmap bitmap = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height))
            {
                using (Graphics g = Graphics.FromImage(bitmap))
                {
                    g.CopyFromScreen(Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y, 0, 0, bitmap.Size);
                }
                bitmap.Save("ekranresim.png");
            }
        }
    }
}