UTILISATION WMI ET WIN32_LOGICALDISK

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

namespace Win32_LogicalDisk
{
    class LogicalDisk
    {
        #region CONSTANTES

        const ulong GIGA_OCTETS = 1 << 30;
        const ulong MEGA_OCTETS = 1 << 20;
        const ulong KILO_OCTETS = 1 << 10;

        #endregion

        static void Main(string[] args)
        {
            #region BLOC_TRY

            try
            {

                ManagementPath mgmtPath = new ManagementPath("Win32_LogicalDisk");
                ManagementClass classObj = new ManagementClass(null, mgmtPath, null);

                ManagementObjectSearcher objSearcher = new ManagementObjectSearcher(@"SELECT Name, FreeSpace, Size, VolumeName
                                                                                      FROM Win32_LogicalDisk 
                                                                                      WHERE DriveType=3");
                ManagementObjectCollection objCollection = objSearcher.Get();

                #region VARIABLES_ENVIRONNEMENT

                int i = 0;                                    //
                Hashtable freeSpace = new Hashtable();        // Variables
                Hashtable useSpace = new Hashtable();         // d'environnement
                Hashtable capacity = new Hashtable();         //

                string[] sLogicalDisk = new string[objCollection.Count];    // Tableau de 'string' contenant les noms de chaque disque
                object[] parameters = new object[1];                        // ScheduleAutoChk() n'a qu'un seul paramètre

                #endregion

                // Parcour de tous les disques logiques présent sur la machine
                foreach (ManagementObject aObjet in objCollection)
                {
                    #region INFOS_SAUVEGARDEES

                    // Sauvegarde du nom du disque
                    sLogicalDisk[i] = aObjet["Name"].ToString();

                    freeSpace.Add("octet", Convert.ToUInt64(aObjet["FreeSpace"]));                                                      //
                    capacity.Add("octet", Convert.ToUInt64(aObjet["Size"]));                                                            // Valeurs en octets
                    useSpace.Add("octet", Convert.ToUInt64(capacity["octet"]) - Convert.ToUInt64(freeSpace["octet"]));                  //

                    freeSpace.Add("kilo_octet", (Convert.ToUInt64(aObjet["FreeSpace"]) / KILO_OCTETS));                                 //
                    capacity.Add("kilo_octet", (Convert.ToUInt64(aObjet["Size"]) / KILO_OCTETS));                                       // Valeurs en kilo octets
                    useSpace.Add("kilo_octet", Convert.ToUInt64(capacity["kilo_octet"]) - Convert.ToUInt64(freeSpace["kilo_octet"]));   //

                    freeSpace.Add("mega_octet", (Convert.ToUInt64(aObjet["FreeSpace"]) / MEGA_OCTETS));                                 //
                    capacity.Add("mega_octet", (Convert.ToUInt64(aObjet["Size"]) / MEGA_OCTETS));                                       // Valeurs en mega octets
                    useSpace.Add("mega_octet", Convert.ToUInt64(capacity["mega_octet"]) - Convert.ToUInt64(freeSpace["mega_octet"]));   //

                    freeSpace.Add("giga_octet", (Convert.ToUInt64(aObjet["FreeSpace"]) / GIGA_OCTETS));                                 //
                    capacity.Add("giga_octet", (Convert.ToUInt64(aObjet["Size"]) / GIGA_OCTETS));                                       // Valeurs en giga octets
                    useSpace.Add("giga_octet", Convert.ToUInt64(capacity["giga_octet"]) - Convert.ToUInt64(freeSpace["giga_octet"]));   //

                    #endregion

                    #region AFFICHAGE_INFORMATIONS

                    Console.WriteLine("----------------------------START INFORMATION--------------------------------");


                    // Affichage des informations 'essentielles' du disque
                    Console.WriteLine("\n\t\t\t\tName: {0}", aObjet["VolumeName"]);
                    Console.WriteLine(
                        String.Format("\nFreeSpace:\n\t\t{0}Go\n\t\t{1}Mo\n\t\t{2}Ko",
                        freeSpace["giga_octet"], freeSpace["mega_octet"], freeSpace["kilo_octet"], freeSpace["octet"]));
                    Console.WriteLine(
                        String.Format("\nUseSpace:\n\t\t{0}Go\n\t\t{1}Mo\n\t\t{2}Ko",
                        useSpace["giga_octet"], useSpace["mega_octet"], useSpace["kilo_octet"], useSpace["octet"]));
                    Console.WriteLine(
                        String.Format("\nCapacity:\n\t\t{0}Go\n\t\t{1}Mo\n\t\t{2}Ko\n",
                        capacity["giga_octet"], capacity["mega_octet"], capacity["kilo_octet"], capacity["octet"]));

                    #endregion

                    freeSpace.Clear();      //
                    useSpace.Clear();       // on vide les informations
                    capacity.Clear();       //

                    i++;
                }
                
                #region INVOKE_METHOD_ScheduleAutoChk

                parameters[0] = sLogicalDisk;
                uint result = Convert.ToUInt32(classObj.InvokeMethod("ScheduleAutoChk", parameters));

                #endregion

                #region GESTION_ERREURS

                // Gestion des différentes erreurs
                switch (result)
                {
                    case 0: Console.WriteLine("SUCCESS");
                        break;
                    case 1: Console.WriteLine("ERROR REMOTE DRIVE");
                        break;
                    case 2: Console.WriteLine("ERROR REMOVABLE DRIVE");
                        break;
                    case 3: Console.WriteLine("ERROR DRIVE NO ROOT DIRECTORY");
                        break;
                    case 4: Console.WriteLine("ERROR UNKNOW DRIVE");
                        break;
                    default: Console.WriteLine("ERROR UNKNOW");
                        break;
                }

                #endregion

                Console.ReadKey(true);
            }

            #endregion

            #region BLOC_CATCH

            catch (ManagementException Ex)
            {
                Console.WriteLine(String.Format("\n\nMANAGEMENT EXCEPTION INTERCEPTEE\n\t\t{0}\n\n", Ex.Message));
            }
            catch (Exception Ex)
            {
                Console.WriteLine(String.Format("\n\nEXCEPTION INTERCEPTEE\n\t\t{0}\n\n", Ex.Message));
            }

            #endregion
        }
    }
}