특수 폴더(시스템 폴더 등) 가져오기(SHGetSpecialFolderPath)

using System;
using System.Collections.Generic;
using System.Net;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
using System.Reflection;

public enum SpecialFolder
{
    Desktop = 0x0000,           // <desktop>
    Internet = 0x0001,          // Internet Explorer (icon on desktop)
    Programs = 0x0002,          // Start Menu\Programs
    Controls = 0x0003,          // My Computer\Control Panel
    Printers = 0x0004,          // My Computer\Printers
    Personal = 0x0005,          // My Documents
    Favorites = 0x0006,         // <user name>\Favorites
    Startup = 0x0007,           // Start Menu\Programs\Startup
    Recent = 0x0008,            // <user name>\Recent
    SendTo = 0x0009,            // <user name>\SendTo
    BitBucket = 0x000a,         // <desktop>\Recycle Bin
    StartMenu = 0x000b,         // <user name>\Start Menu
    MyDocuments = Personal,     //  Personal was just a silly name for My Documents
    MyMusic = 0x000d,           // "My Music" folder
    MyVideo = 0x000e,           // "My Videos" folder
    DesktopDirectory = 0x0010,  // <user name>\Desktop
    Drives = 0x0011,            // My Computer
    Network = 0x0012,           // Network Neighborhood (My Network Places)
    NetHood = 0x0013,           // <user name>\nethood
    Fonts = 0x0014,             // windows\fonts
    Templates = 0x0015,
    CommonStartMenu = 0x0016,   // All Users\Start Menu
    CommonPrograms = 0X0017,    // All Users\Start Menu\Programs
    CommonStartup = 0x0018,     // All Users\Startup
    CommonDesktopDirectory = 0x0019, // All Users\Desktop
    AppData = 0x001a,           // <user name>\Application Data
    PrintHood = 0x001b,         // <user name>\PrintHood
    LocalAppData = 0x001c,      // <user name>\Local Settings\Applicaiton Data (non roaming)
    AltStartup = 0x001d,        // non localized startup
    CommonAltStartup = 0x001e,  // non localized common startup
    CommonFavorite = 0x001f,
    InternetCache = 0x0020,
    Cookies = 0x0021,
    History = 0x0022,
    CommonAppData = 0x0023,     // All Users\Application Data
    Windows = 0x0024,           // GetWindowsDirectory()
    System = 0x0025,            // GetSystemDirectory()
    ProgramFiles = 0x0026,      // C:\Program Files
    MyPictures = 0x0027,        // C:\Program Files\My Pictures
    Profile = 0x0028,           // USERPROFILE
    SystemX86 = 0x0029,         // x86 system directory on RISC
    ProgramFilesX86 = 0x002a,   // x86 C:\Program Files on RISC
    ProgramFilesCommon = 0x002b,// C:\Program Files\Common
    ProgramFilesCommon86 = 0x002c,// x86 Program Files\Common on RISC
    CommonTemplates = 0x002d,   // All Users\Templates
    CommonDocuments = 0x002e,   // All Users\Documents
    CommonAdminTools = 0x002f,  // All Users\Start Menu\Programs\Administrative Tools
    AdminTools = 0x0030,        // <user name>\Start Menu\Programs\Administrative Tools
    Connections = 0x0031,       // Network and Dial-up Connections
    CommonMusic = 0x0035,       // All Users\My Music
    CommonPictures = 0x0036,    // All Users\My Pictures
    CommonViedo = 0x0037,       // All Users\My Video
    Resource = 0x0038,          // Resource Direcotry
}

public class Program
{
    [DllImport("shell32")]
    private static extern bool SHGetSpecialFolderPath(IntPtr hwndOwner, StringBuilder lpszPath, int csidl, bool fCreate);

    public static string GetSpecialFolderPath(SpecialFolder sf)
    {
        const int MAX_PATH = 260;
        StringBuilder sb = new StringBuilder(MAX_PATH);
        SHGetSpecialFolderPath(IntPtr.Zero, sb, (int)sf, false);
        return sb.ToString();
    }

    public static void Main()
    {
        foreach (FieldInfo field in typeof(SpecialFolder).GetFields())
        {
            if (field.FieldType.Equals(typeof(SpecialFolder)))
            {
                Console.WriteLine("{0}: {1}", field.Name, GetSpecialFolderPath((SpecialFolder)field.GetValue(null)));
            }
        }
    }
}