MicroTimer 2018 -TizzyT

using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Threading;

    public class MicroTimer : IDisposable
    {
        [DllImport("winmm.dll")]
        private static extern uint timeBeginPeriod(uint msec);

        private static readonly decimal TicksPerMillisecond = Stopwatch.Frequency / 1000M;
        private decimal NextTime;
        private Thread Iterator;
        private int Ms;

        public event ElapsedEventHandler Elapsed;
        public delegate void ElapsedEventHandler();
        public decimal Interval { get; set; }

        static MicroTimer()
        {
            if (timeBeginPeriod(1) != 0) throw new Exception("High resolution timer not available.");
        }

        public MicroTimer() => Interval = TicksPerMillisecond;

        public void Start(bool initial = false)
        {
            if (Iterator == null)
            {
                NextTime = Stopwatch.GetTimestamp() + (initial ? 0 : Interval);
                Iterator = new Thread(() =>
                {
                    while (true)
                    {
                        if ((Ms = (int)(Math.Floor((NextTime - Stopwatch.GetTimestamp()) / TicksPerMillisecond))) > 0) Thread.Sleep(Ms);
                        while (Stopwatch.GetTimestamp() < NextTime) ;
                        Elapsed?.Invoke();
                        NextTime += Interval;
                    }
                })
                {
                    Priority = ThreadPriority.Highest,
                    IsBackground = true
                };
                Iterator.Start();
            }
        }

        public void Stop()
        {
            if (Iterator != null)
            {
                Iterator.Abort();
                Iterator = null;
            }
        }

        public void Dispose() => Iterator?.Abort();
    }