Console Brightness Control (Win)

using System;
using System.Collections.Generic;
using System.Text;

namespace DisplayBrightnessConsole
{
    class Program
    {
        static void Main(string[] args)
        {
            if (args.Length == 0)
            {
                Console.WriteLine(GetBrightness());
            }
            else if (args[0] == "-getlevels")
            {
                byte[] BrightnessLevels = GetBrightnessLevels();

                foreach (byte b in BrightnessLevels)
                {
                    Console.WriteLine(b.ToString());
                }
            }
            else
            {
                //parse switch value
                byte targetBrightness = byte.Parse(args[0]);
                SetBrightness(targetBrightness);
                Console.WriteLine("0"); //success value
            }
        }

        static byte GetBrightness()
        {
            //define scope (namespace)
            System.Management.ManagementScope s = new System.Management.ManagementScope("root\\WMI");

            //define query
            System.Management.SelectQuery q = new System.Management.SelectQuery("WmiMonitorBrightness");

            //output current brightness
            System.Management.ManagementObjectSearcher mos = new System.Management.ManagementObjectSearcher(s, q);

            System.Management.ManagementObjectCollection moc = mos.Get();

            //store result
            byte curBrightness = 0;

            foreach (System.Management.ManagementObject o in moc)
            {
                curBrightness = (byte)o.GetPropertyValue("CurrentBrightness");
                break; //only work on the first object
            }

            moc.Dispose();
            mos.Dispose();

            return curBrightness;
        }

        static byte[] GetBrightnessLevels()
        {
            //define scope (namespace)
            System.Management.ManagementScope s = new System.Management.ManagementScope("root\\WMI");

            //define query
            System.Management.SelectQuery q = new System.Management.SelectQuery("WmiMonitorBrightness");

            //output current brightness
            System.Management.ManagementObjectSearcher mos = new System.Management.ManagementObjectSearcher(s, q);

            System.Management.ManagementObjectCollection moc = mos.Get();

            //store result
            byte[] BrightnessLevels = new byte[0];

            foreach (System.Management.ManagementObject o in moc)
            {
                BrightnessLevels = (byte[])o.GetPropertyValue("Level");
                break; //only work on the first object
            }

            moc.Dispose();
            mos.Dispose();

            return BrightnessLevels;
        }

        static void SetBrightness(byte targetBrightness)
        {
            //define scope (namespace)
            System.Management.ManagementScope s = new System.Management.ManagementScope("root\\WMI");

            //define query
            System.Management.SelectQuery q = new System.Management.SelectQuery("WmiMonitorBrightnessMethods");

            //output current brightness
            System.Management.ManagementObjectSearcher mos = new System.Management.ManagementObjectSearcher(s, q);

            System.Management.ManagementObjectCollection moc = mos.Get();

            foreach (System.Management.ManagementObject o in moc)
            {
                o.InvokeMethod("WmiSetBrightness", new Object[] { UInt32.MaxValue, targetBrightness }); //note the reversed order - won't work otherwise!
                break; //only work on the first object
            }

            moc.Dispose();
            mos.Dispose();
        }
    }
}