c# writeprocessmemory

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Diagnostics;
using System.Runtime.InteropServices;


namespace ConsoleApp5
{
    public class Program
    {
        const int PROCESS_VM_WRITE = 0x0020;
        const int PROCESS_VM_OPERATION = 0x0008;
        [DllImport("kernel32.dll")]
        public static extern IntPtr OpenProcess(int dwDesiredAccess,
           bool bInheritHandle, int dwProcessId);

        [DllImport("kernel32.dll", SetLastError = true)]
        static extern bool WriteProcessMemory(int hProcess, int lpBaseAddress,
          byte[] lpBuffer, int dwSize, ref int lpNumberOfBytesWritten);

        public static **** Main()
        {
            Process process = Process.GetProcessesByName("notepad++")[0];
            IntPtr processHandle = OpenProcess(0x1F0FFF, false, process.Id);

            int bytesWritten = 0;
            byte[] buffer = Encoding.Unicode.GetBytes("It works!\0");
            

            
            WriteProcessMemory((int)processHandle, 0x01783010, buffer, buffer.Length, ref bytesWritten);

            Console.ReadLine();
            Console.ReadKey();
        }
    }
}