Delphi Tip - GetSystemPath

출처 : http://www.scalabium.com/faq/dct0106.htm
http://delphi.mylivepage.com/wiki/1380/638

uses
  ShlObj, ActiveX;

function GetSystemPath(Folder: Integer): string;
var
  PIDL: PItemIDList;
  Path: LPSTR;
  AMalloc: IMalloc;
begin
  Path := StrAlloc(MAX_PATH);
  SHGetSpecialFolderLocation(Application.Handle, Folder, PIDL);
  if SHGetPathFromIDList(PIDL, Path) then
    Result := Path;
  SHGetMalloc(AMalloc);
  AMalloc.Free(PIDL);
  StrDispose(Path);
end;

-----------------------------------------------------------------------

typedef enum {
 CSIDL_DESKTOP = 0x0000,
 CSIDL_INTERNET = 0x0001,
 CSIDL_PROGRAMS = 0x0002,
 CSIDL_CONTROLS = 0x0003,
 CSIDL_PRINTERS = 0x0004,
 CSIDL_PERSONAL = 0x0005,
 CSIDL_FAVORITES = 0x0006,
 CSIDL_STARTUP = 0x0007,
 CSIDL_RECENT = 0x0008,
 CSIDL_SENDTO = 0x0009,
 CSIDL_BITBUCKET = 0x000A,
 CSIDL_STARTMENU = 0x000B,
 CSIDL_MYDOCUMENTS = 0x000C,
 CSIDL_MYMUSIC = 0x000D,
 CSIDL_MYVIDEO = 0x000E,
 CSIDL_DESKTOPDIRECTORY = 0x0010,
 CSIDL_DRIVES = 0x0011,
 CSIDL_NETWORK = 0x0012,
 CSIDL_NETHOOD = 0x0013,
 CSIDL_FONTS = 0x0014,
 CSIDL_TEMPLATES = 0x0015,
 CSIDL_COMMON_STARTMENU = 0x016,
 CSIDL_COMMON_PROGRAMS = 0x0017,
 CSIDL_COMMON_STARTUP = 0x0018,
 CSIDL_COMMON_DESKTOPDIRECTORY = 0x0019,
 CSIDL_APPDATA = 0x001A,
 CSIDL_PRINTHOOD = 0x001B,
 CSIDL_LOCAL_APPDATA = 0x001C,
 CSIDL_ALTSTARTUP = 0x001D,
 CSIDL_COMMON_ALTSTARTUP = 0x001E,
 CSIDL_COMMON_FAVORITES = 0x001F,
 CSIDL_INTERNET_CACHE = 0x0020,
 CSIDL_COOKIES = 0x0021,
 CSIDL_HISTORY = 0x0022,
 CSIDL_COMMON_APPDATA = 0x0023,
 CSIDL_WINDOWS = 0x0024,
 CSIDL_SYSTEM = 0x0025,
 CSIDL_PROGRAM_FILES = 0x0026,
 CSIDL_MYPICTURES = 0x0027,
 CSIDL_PROFILE = 0x0028,
 CSIDL_SYSTEMX86 = 0x0029,
 CSIDL_PROGRAM_FILESX86 = 0x002A,
 CSIDL_PROGRAM_FILES_COMMON = 0x002B,
 CSIDL_PROGRAM_FILES_COMMONX86 = 0x002C,
 CSIDL_COMMON_TEMPLATES = 0x002D,
 CSIDL_COMMON_DOCUMENTS = 0x002E,
 CSIDL_COMMON_ADMINTOOLS = 0x002F,
 CSIDL_ADMINTOOLS = 0x0030,
 CSIDL_CONNECTIONS = 0x0031,
 CSIDL_COMMON_MUSIC = 0x0035,
 CSIDL_COMMON_PICTURES = 0x0036,
 CSIDL_COMMON_VIDEO = 0x0037,
 CSIDL_RESOURCES = 0x0038,
 CSIDL_RESOURCES_LOCALIZED = 0x0039,
 CSIDL_COMMON_OEM_LINKS = 0x003A,
 CSIDL_CDBURN_AREA = 0x003B,
 CSIDL_COMPUTERSNEARME = 0x003D,
 CSIDL_FLAG_PER_USER_INIT = 0x0800,
 CSIDL_FLAG_NO_ALIAS = 0x1000,
 CSIDL_FLAG_DONT_VERIFY = 0x4000,
 CSIDL_FLAG_CREATE = 0x8000,
 CSIDL_FLAG_MASK = 0xFF00
} CSIDL Values;

Constants

CSIDL_DESKTOP	Windows desktop-virtual folder that is the root of the name space.
CSIDL_INTERNET	Virtual folder that represents the Internet.
CSIDL_PROGRAMS	File system directory that contains the user's program groups (which are also file system directories). A typical path is C:\Documents and Settings\username\Start Menu\Programs.
CSIDL_CONTROLS	Virtual folder that contains icons for Control Panel applications.
CSIDL_PRINTERS	Virtual folder that contains installed printers.
CSIDL_PERSONAL	File system directory that serves as a common repository for documents. A typical path is C:\Documents and Settings\username\My Documents. This is different from the My Documents virtual folder in the name space. To access that virtual folder, use the technique described in Managing the File System .
CSIDL_FAVORITES	File system directory that serves as a common repository for the user's favorite items. A typical path is C:\Documents and Settings\username\Favorites.
CSIDL_STARTUP	File system directory that corresponds to the user's Startup program group. The system starts these programs whenever any user logs onto Microsoft® Windows NT® or starts Microsoft Windows® 98. A typical path is C:\Documents and Settings\username\Start Menu\Programs\Startup.
CSIDL_RECENT	File system directory that contains the user's most recently used documents. A typical path is C:\Documents and Settings\username\Recent. To create a shortcut in this folder, use SHAddToRecentDocs . In addition to creating the shortcut, this function updates the Shell's list of recent documents and adds the shortcut to the Documents submenu of the Start menu.
CSIDL_SENDTO	File system directory that contains Send To menu items. A typical path is C:\Documents and Settings\username\SendTo.
CSIDL_BITBUCKET	Virtual folder that contains the objects in the user's Recycle Bin.
CSIDL_STARTMENU	File system directory that contains Start Menu items. A typical path is C:\Documents and Settings\username\Start Menu.
CSIDL_MYDOCUMENTS	Virtual folder that contains the objects in the user's My Documents folder.
CSIDL_MYMUSIC	File system directory that serves as a common repository for music files. A typical path is C:\My Music.
CSIDL_MYVIDEO	File system directory that serves as a common repository for video files.
CSIDL_DESKTOPDIRECTORY	File system directory used to physically store file objects on the desktop (not to be confused with the desktop folder itself). A typical path is C:\Documents and Settings\username\Desktop
CSIDL_DRIVES	My Computer-virtual folder that contains everything on the local computer: storage devices, printers, and Control Panel. The folder can also contain mapped network drives.
CSIDL_NETWORK	Network Neighborhood-virtual folder that represents the root of the network namespace hierarchy.
CSIDL_NETHOOD	A file system folder that contains the link objects that can exist in the My Network Places virtual folder. It is not the same as CSIDL , which represents the network namespace root. A typical path is C:\Documents and Settings\username\NetHood.
CSIDL_FONTS	Virtual folder that contains fonts. A typical path is C:\WINNT\Fonts.
CSIDL_TEMPLATES	File system directory that serves as a common repository for document templates.
CSIDL_COMMON_STARTMENU	File system directory that contains the programs and folders that appear on the Start Menu for all users. A typical path is C:\Documents and Settings\All Users\Start Menu. Valid only for Windows NT systems.
CSIDL_COMMON_PROGRAMS	File system directory that contains the directories for the common program groups that appear in the Start Menu for all users. A typical path is C:\Documents and Settings\All Users\Start Menu\Programs. Valid only for Windows NT systems.
CSIDL_COMMON_STARTUP	File system directory that contains the programs that appear in the Startup folder for all users. A typical path is C:\Documents and Settings\All Users\Start Menu\Programs\Startup. Valid only for Windows NT systems.
CSIDL_COMMON_DESKTOPDIRECTORY	File system directory that contains files and folders that appear on the desktop for all users. A typical path is C:\Documents and Settings\All Users\Desktop. Valid only for Windows NT systems.
CSIDL_APPDATA	Version 4.71 . File system directory that serves as a common repository for application-specific data. A typical path is C:\Documents and Settings\username\Application Data. This CSIDL is supported by the redistributable ShFolder.dll for systems that do not have the Microsoft Internet Explorer 4.0 integrated Shell installed.
CSIDL_PRINTHOOD	File system directory that contains the link objects that can exist in the Printers virtual folder. A typical path is C:\Documents and Settings\username\PrintHood.
CSIDL_LOCAL_APPDATA	Version 5.0 . File system directory that serves as a data repository for local (nonroaming) applications. A typical path is C:\Documents and Settings\username\Local Settings\Application Data.
CSIDL_ALTSTARTUP	File system directory that corresponds to the user's nonlocalized Startup program group.
CSIDL_COMMON_ALTSTARTUP	File system directory that corresponds to the nonlocalized Startup program group for all users. Valid only for Windows NT systems.
CSIDL_COMMON_FAVORITES	File system directory that serves as a common repository for all user's favorite items. Valid only for Windows NT systems.
CSIDL_INTERNET_CACHE	Version 4.72 . File system directory that serves as a common repository for temporary Internet files. A typical path is C:\Documents and Settings\username\Temporary Internet Files.
CSIDL_COOKIES	File system directory that serves as a common repository for Internet cookies. A typical path is C:\Documents and Settings\username\Cookies.
CSIDL_HISTORY	File system directory that serves as a common repository for Internet history items.
CSIDL_COMMON_APPDATA	Version 5.0 . Application data for all users. A typical path is C:\Documents and Settings\All Users\Application Data.
CSIDL_WINDOWS	Version 5.0 . Windows directory or SYSROOT. This corresponds to the %windir% or %SYSTEMROOT% environment variables. A typical path is C:\WINNT.
CSIDL_SYSTEM	Version 5.0 . System folder. A typical path is C:\WINNT\SYSTEM32.
CSIDL_PROGRAM_FILES	Version 5.0 . Program Files folder. A typical path is C:\Program Files.
CSIDL_MYPICTURES	Version 5.0 . My Pictures folder. A typical path is C:\Documents and Settings\username\My Documents\My Pictures.
CSIDL_PROFILE	Version 5.0 . User's profile folder.
CSIDL_SYSTEMX86	The x86 system directory on Reduced Instruction Set Computer (RISC) systems.
CSIDL_PROGRAM_FILESX86	The x86 Program Files folder on RISC systems.
CSIDL_PROGRAM_FILES_COMMON	Version 5.0 . A folder for components that are shared across applications. A typical path is C:\Program Files\Common. Valid only for Windows NT and Windows 2000 systems.
CSIDL_PROGRAM_FILES_COMMONX86	The x86 Program Files Common folder on RISC systems.
CSIDL_COMMON_TEMPLATES	File system directory that contains the templates that are available to all users. A typical path is C:\Documents and Settings\All Users\Templates. Valid only for Windows NT systems.
CSIDL_COMMON_DOCUMENTS	File system directory that contains documents that are common to all users. Typical paths are C:\Documents and Settings\All Users\Documents. Valid for Windows NT systems and Windows 95 and Windows 98 systems with Shfolder.dll installed.
CSIDL_COMMON_ADMINTOOLS	Version 5.0 . File system directory that contains administrative tools for all users.
CSIDL_ADMINTOOLS	Version 5.0 . File system directory used to store administrative tools for an individual user. The Microsoft Management Console (MMC) saves customized consoles to this directory, and it roams with the user.
CSIDL_CONNECTIONS	Virtual folder that contains network and dial-up connections.
CSIDL_COMMON_MUSIC	My Music folder for all users. For more information, see CSIDL .
CSIDL_COMMON_PICTURES	My Pictures folder for all users. For more information, see CSIDL .
CSIDL_COMMON_VIDEO	My Video folder for all users. For more information, see CSIDL .
CSIDL_RESOURCES	System resource directory. A typical path is C:\WINNT\Resources.
CSIDL_RESOURCES_LOCALIZED	Localized resource directory. For more information, see CSIDL .
CSIDL_COMMON_OEM_LINKS	Folder containing links to OEM specific applications for all users.
CSIDL_CDBURN_AREA	File system folder used to hold data for burning to a CD. Typically [User Profile Folder]\Local Settings\Applications Data\Microsoft\CD Burning.
CSIDL_COMPUTERSNEARME	Computers Near Me folder. Virtual folder that contains links to nearby computers on the network. Nearness it is established by common work group membership.
CSIDL_FLAG_PER_USER_INIT	Combine this flag with the desired CSIDL_ value to indicate per-user initialization.
CSIDL_FLAG_NO_ALIAS	Combine this flag with the desired CSIDL_ value to force a non-alias version of the PIDL.
CSIDL_FLAG_DONT_VERIFY	Combine this flag with the desired CSIDL_ value to return an unverified folder path.
CSIDL_FLAG_CREATE	Combine this flag with the desired CSIDL_ value to force the creation of the associated folder.
CSIDL_FLAG_MASK	Mask for all possible CSIDL flag values.

Enumerated Type Information
Minimum operating systems Windows 95, Windows NT 4.0, Windows XP

See Also
SHGetFolderLocation, SHGetFolderPath, SHGetSpecialFolderLocation, SHGetSpecialFolderPath