获取ALL USER 的特殊目录的类
.net 框架中提供的 System.Environment.GetFolderPath 只能获取当前用户的特殊目录，无法获取所有用户的特殊目录。我做了一个类，可以帮助获取所有用户的特殊目录。这个类调用SHGetFolderPath windows API 来获取ALL USER 的特殊目录路径，网上有很多相关的文章用的API是有些过时了，这篇文章中的API可以适用于windows 2000 后的任何操作系统。
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
namespace MySystem
{
public class Environment
{
[DllImport("shell32.dll")]
static extern int SHGetFolderPath(IntPtr hwndOwner, SpecialFolderCSIDL nFolder, IntPtr hToken,
uint dwFlags, [Out] StringBuilder pszPath);
private const int MAX_PATH = 260;
public enum SpecialFolderCSIDL : int
{
CSIDL_DESKTOP = 0x0000, // <desktop>
CSIDL_INTERNET = 0x0001, // Internet Explorer (icon on desktop)
CSIDL_PROGRAMS = 0x0002, // Start Menu\Programs
CSIDL_CONTROLS = 0x0003, // My Computer\Control Panel
CSIDL_PRINTERS = 0x0004, // My Computer\Printers
CSIDL_PERSONAL = 0x0005, // My Documents
CSIDL_FAVORITES = 0x0006, // <user name>\Favorites
CSIDL_STARTUP = 0x0007, // Start Menu\Programs\Startup
CSIDL_RECENT = 0x0008, // <user name>\Recent
CSIDL_SENDTO = 0x0009, // <user name>\SendTo
CSIDL_BITBUCKET = 0x000a, // <desktop>\Recycle Bin
CSIDL_STARTMENU = 0x000b, // <user name>\Start Menu
CSIDL_MYMUSIC = 0x000d, //
CSIDL_DESKTOPDIRECTORY = 0x0010, // <user name>\Desktop
CSIDL_DRIVES = 0x0011, // My Computer
CSIDL_NETWORK = 0x0012, // Network Neighborhood
CSIDL_NETHOOD = 0x0013, // <user name>\nethood
CSIDL_FONTS = 0x0014, // windows\fonts
CSIDL_TEMPLATES = 0x0015,
CSIDL_COMMON_STARTMENU = 0x0016, // All Users\Start Menu
CSIDL_COMMON_PROGRAMS = 0x0017, // All Users\Programs
CSIDL_COMMON_STARTUP = 0x0018, // All Users\Startup
CSIDL_COMMON_DESKTOPDIRECTORY = 0x0019, // All Users\Desktop
CSIDL_APPDATA = 0x001a, // <user name>\Application Data
CSIDL_PRINTHOOD = 0x001b, // <user name>\PrintHood
CSIDL_LOCAL_APPDATA = 0x001c, // <user name>\Local Settings\Applicaiton Data (non roaming)
CSIDL_ALTSTARTUP = 0x001d, // non localized startup
CSIDL_COMMON_ALTSTARTUP = 0x001e, // non localized common startup
CSIDL_COMMON_FAVORITES = 0x001f,
CSIDL_INTERNET_CACHE = 0x0020,
CSIDL_COOKIES = 0x0021,
CSIDL_HISTORY = 0x0022,
CSIDL_COMMON_APPDATA = 0x0023, // All Users\Application Data
CSIDL_WINDOWS = 0x0024, // GetWindowsDirectory()
CSIDL_SYSTEM = 0x0025, // GetSystemDirectory()
CSIDL_PROGRAM_FILES = 0x0026, // C:\Program Files
CSIDL_MYPICTURES = 0x0027, // C:\Program Files\My Pictures
CSIDL_PROFILE = 0x0028, // USERPROFILE
CSIDL_SYSTEMX86 = 0x0029, // x86 system directory on RISC
CSIDL_PROGRAM_FILESX86 = 0x002a, // x86 C:\Program Files on RISC
CSIDL_PROGRAM_FILES_COMMON = 0x002b, // C:\Program Files\Common
CSIDL_PROGRAM_FILES_COMMONX86 = 0x002c, // x86 Program Files\Common on RISC
CSIDL_COMMON_TEMPLATES = 0x002d, // All Users\Templates
CSIDL_COMMON_DOCUMENTS = 0x002e, // All Users\Documents
CSIDL_COMMON_ADMINTOOLS = 0x002f, // All Users\Start Menu\Programs\Administrative Tools
CSIDL_ADMINTOOLS = 0x0030, // <user name>\Start Menu\Programs\Administrative Tools
CSIDL_CONNECTIONS = 0x0031, // Network and Dial-up Connections
};
public static string GetAllUsersFolderPath(SpecialFolderCSIDL csidl)
{
StringBuilder path = new StringBuilder(MAX_PATH);
SHGetFolderPath(IntPtr.Zero, csidl, IntPtr.Zero, 0, path);
return path.ToString();
}
public static string GetAllUsersFolderPath(System.Environment.SpecialFolder specialFolder)
{
SpecialFolderCSIDL csidl;
switch (specialFolder)
{
case System.Environment.SpecialFolder.ApplicationData:
csidl = SpecialFolderCSIDL.CSIDL_APPDATA;
break;
case System.Environment.SpecialFolder.CommonApplicationData:
csidl = SpecialFolderCSIDL.CSIDL_COMMON_APPDATA;
break;
case System.Environment.SpecialFolder.CommonProgramFiles:
csidl = SpecialFolderCSIDL.CSIDL_COMMON_PROGRAMS;
break;
case System.Environment.SpecialFolder.Cookies:
csidl = SpecialFolderCSIDL.CSIDL_COOKIES;
break;
case System.Environment.SpecialFolder.Desktop:
csidl = SpecialFolderCSIDL.CSIDL_COMMON_DESKTOPDIRECTORY;
break;
case System.Environment.SpecialFolder.DesktopDirectory:
csidl = SpecialFolderCSIDL.CSIDL_COMMON_DESKTOPDIRECTORY;
break;
case System.Environment.SpecialFolder.Favorites:
csidl = SpecialFolderCSIDL.CSIDL_COMMON_FAVORITES;
break;
case System.Environment.SpecialFolder.History:
csidl = SpecialFolderCSIDL.CSIDL_HISTORY;
break;
case System.Environment.SpecialFolder.InternetCache:
csidl = SpecialFolderCSIDL.CSIDL_INTERNET_CACHE;
break;
case System.Environment.SpecialFolder.LocalApplicationData:
csidl = SpecialFolderCSIDL.CSIDL_LOCAL_APPDATA;
break;
case System.Environment.SpecialFolder.MyComputer:
csidl = SpecialFolderCSIDL.CSIDL_DRIVES;
break;
case System.Environment.SpecialFolder.MyDocuments:
csidl = SpecialFolderCSIDL.CSIDL_COMMON_DOCUMENTS;
break;
case System.Environment.SpecialFolder.MyMusic:
csidl = SpecialFolderCSIDL.CSIDL_MYMUSIC;
break;
case System.Environment.SpecialFolder.MyPictures:
csidl = SpecialFolderCSIDL.CSIDL_MYPICTURES;
break;
case System.Environment.SpecialFolder.ProgramFiles:
csidl = SpecialFolderCSIDL.CSIDL_PROGRAM_FILES;
break;
case System.Environment.SpecialFolder.Programs:
csidl = SpecialFolderCSIDL.CSIDL_COMMON_PROGRAMS;
break;
case System.Environment.SpecialFolder.Recent:
csidl = SpecialFolderCSIDL.CSIDL_RECENT;
break;
case System.Environment.SpecialFolder.SendTo:
csidl = SpecialFolderCSIDL.CSIDL_SENDTO;
break;
case System.Environment.SpecialFolder.StartMenu:
csidl = SpecialFolderCSIDL.CSIDL_COMMON_STARTMENU;
break;
case System.Environment.SpecialFolder.Startup:
csidl = SpecialFolderCSIDL.CSIDL_COMMON_STARTUP;
break;
case System.Environment.SpecialFolder.System:
csidl = SpecialFolderCSIDL.CSIDL_SYSTEM;
break;
case System.Environment.SpecialFolder.Templates:
csidl = SpecialFolderCSIDL.CSIDL_COMMON_TEMPLATES;
break;
default:
csidl = SpecialFolderCSIDL.CSIDL_COMMON_DOCUMENTS;
break;
}
return GetAllUsersFolderPath(csidl);
}
}
}