.net 框架中提供的 System.Environment.GetFolderPath 只能獲取當(dāng)前用戶的特殊目錄，無法獲取所有用戶的特殊目錄。我做了一個(gè)類，可以幫助獲取所有用戶的特殊目錄。這個(gè)類調(diào)用SHGetFolderPath windows API 來獲取ALL USER 的特殊目錄路徑，網(wǎng)上有很多相關(guān)的文章用的API是有些過時(shí)了，這篇文章中的API可以適用于windows 2000 后的任何操作系統(tǒng)。
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\fontsCSIDL_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 startupCSIDL_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);}
}
}
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