4 Contains: A collection of useful high-level File Manager routines
5 which use the HFS Plus APIs wherever possible.
7 Version: MoreFilesX 1.0.1
9 Copyright: © 1992-2002 by Apple Computer, Inc., all rights reserved.
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48 DRI: Apple Macintosh Developer Technical Support
50 Other Contact: For bug reports, consult the following page on
52 http://developer.apple.com/bugreporter/
54 Technology: DTS Sample Code
60 Change History (most recent first):
62 <3> 4/19/02 JL [2853905] Fixed #if test around header includes.
63 <2> 4/19/02 JL [2853901] Updated standard disclaimer.
64 <1> 1/25/02 JL MoreFilesX 1.0
67 What do those arrows in the documentation for each routine mean?
69 --> The parameter is an input
71 <-- The parameter is an output. The pointer to the variable
72 where the output will be returned (must not be NULL).
74 <** The parameter is an optional output. If it is not a
75 NULL pointer, it points to the variable where the output
76 will be returned. If it is a NULL pointer, the output will
77 not be returned and will possibly let the routine and the
78 File Manager do less work. If you don't need an optional output,
80 **> The parameter is an optional input. If it is not a
81 NULL pointer, it points to the variable containing the
82 input data. If it is a NULL pointer, the input is not used
83 and will possibly let the routine and the File Manager
87 #ifndef __MOREFILESX__
88 #define __MOREFILESX__
92 #include <Carbon/Carbon.h>
110 #if PRAGMA_STRUCT_ALIGN
111 #pragma options align=mac68k
112 #elif PRAGMA_STRUCT_PACKPUSH
113 #pragma pack(push, 2)
114 #elif PRAGMA_STRUCT_PACK
118 /*****************************************************************************/
120 #pragma mark ----- FinderInfo and ExtendedFinderInfo -----
123 * FSGetFinderInfo and FSSetFinderInfo use these unions for Finder information.
131 typedef union FinderInfo FinderInfo
;
133 union ExtendedFinderInfo
135 ExtendedFileInfo file
;
136 ExtendedFolderInfo folder
;
138 typedef union ExtendedFinderInfo ExtendedFinderInfo
;
140 /*****************************************************************************/
142 #pragma mark ----- GetVolParmsInfoBuffer Macros -----
145 * Macros to get information out of GetVolParmsInfoBuffer.
148 /* version 1 field getters */
149 #define GetVolParmsInfoVersion(volParms) \
150 ((volParms)->vMVersion)
151 #define GetVolParmsInfoAttrib(volParms) \
152 ((volParms)->vMAttrib)
153 #define GetVolParmsInfoLocalHand(volParms) \
154 ((volParms)->vMLocalHand)
155 #define GetVolParmsInfoServerAdr(volParms) \
156 ((volParms)->vMServerAdr)
158 /* version 2 field getters (assume zero result if version < 2) */
159 #define GetVolParmsInfoVolumeGrade(volParms) \
160 (((volParms)->vMVersion >= 2) ? (volParms)->vMVolumeGrade : 0)
161 #define GetVolParmsInfoForeignPrivID(volParms) \
162 (((volParms)->vMVersion >= 2) ? (volParms)->vMForeignPrivID : 0)
164 /* version 3 field getters (assume zero result if version < 3) */
165 #define GetVolParmsInfoExtendedAttributes(volParms) \
166 (((volParms)->vMVersion >= 3) ? (volParms)->vMExtendedAttributes : 0)
168 /* attribute bits supported by all versions of GetVolParmsInfoBuffer */
169 #define VolIsNetworkVolume(volParms) \
170 ((volParms)->vMServerAdr != 0)
171 #define VolHasLimitFCBs(volParms) \
172 (((volParms)->vMAttrib & (1L << bLimitFCBs)) != 0)
173 #define VolHasLocalWList(volParms) \
174 (((volParms)->vMAttrib & (1L << bLocalWList)) != 0)
175 #define VolHasNoMiniFndr(volParms) \
176 (((volParms)->vMAttrib & (1L << bNoMiniFndr)) != 0)
177 #define VolHasNoVNEdit(volParms) \
178 (((volParms)->vMAttrib & (1L << bNoVNEdit)) != 0)
179 #define VolHasNoLclSync(volParms) \
180 (((volParms)->vMAttrib & (1L << bNoLclSync)) != 0)
181 #define VolHasTrshOffLine(volParms) \
182 (((volParms)->vMAttrib & (1L << bTrshOffLine)) != 0)
183 #define VolHasNoSwitchTo(volParms) \
184 (((volParms)->vMAttrib & (1L << bNoSwitchTo)) != 0)
185 #define VolHasNoDeskItems(volParms) \
186 (((volParms)->vMAttrib & (1L << bNoDeskItems)) != 0)
187 #define VolHasNoBootBlks(volParms) \
188 (((volParms)->vMAttrib & (1L << bNoBootBlks)) != 0)
189 #define VolHasAccessCntl(volParms) \
190 (((volParms)->vMAttrib & (1L << bAccessCntl)) != 0)
191 #define VolHasNoSysDir(volParms) \
192 (((volParms)->vMAttrib & (1L << bNoSysDir)) != 0)
193 #define VolHasExtFSVol(volParms) \
194 (((volParms)->vMAttrib & (1L << bHasExtFSVol)) != 0)
195 #define VolHasOpenDeny(volParms) \
196 (((volParms)->vMAttrib & (1L << bHasOpenDeny)) != 0)
197 #define VolHasCopyFile(volParms) \
198 (((volParms)->vMAttrib & (1L << bHasCopyFile)) != 0)
199 #define VolHasMoveRename(volParms) \
200 (((volParms)->vMAttrib & (1L << bHasMoveRename)) != 0)
201 #define VolHasDesktopMgr(volParms) \
202 (((volParms)->vMAttrib & (1L << bHasDesktopMgr)) != 0)
203 #define VolHasShortName(volParms) \
204 (((volParms)->vMAttrib & (1L << bHasShortName)) != 0)
205 #define VolHasFolderLock(volParms) \
206 (((volParms)->vMAttrib & (1L << bHasFolderLock)) != 0)
207 #define VolHasPersonalAccessPrivileges(volParms) \
208 (((volParms)->vMAttrib & (1L << bHasPersonalAccessPrivileges)) != 0)
209 #define VolHasUserGroupList(volParms) \
210 (((volParms)->vMAttrib & (1L << bHasUserGroupList)) != 0)
211 #define VolHasCatSearch(volParms) \
212 (((volParms)->vMAttrib & (1L << bHasCatSearch)) != 0)
213 #define VolHasFileIDs(volParms) \
214 (((volParms)->vMAttrib & (1L << bHasFileIDs)) != 0)
215 #define VolHasBTreeMgr(volParms) \
216 (((volParms)->vMAttrib & (1L << bHasBTreeMgr)) != 0)
217 #define VolHasBlankAccessPrivileges(volParms) \
218 (((volParms)->vMAttrib & (1L << bHasBlankAccessPrivileges)) != 0)
219 #define VolSupportsAsyncRequests(volParms) \
220 (((volParms)->vMAttrib & (1L << bSupportsAsyncRequests)) != 0)
221 #define VolSupportsTrashVolumeCache(volParms) \
222 (((volParms)->vMAttrib & (1L << bSupportsTrashVolumeCache)) != 0)
224 /* attribute bits supported by version 3 and greater versions of GetVolParmsInfoBuffer */
225 #define VolIsEjectable(volParms) \
226 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bIsEjectable)) != 0)
227 #define VolSupportsHFSPlusAPIs(volParms) \
228 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bSupportsHFSPlusAPIs)) != 0)
229 #define VolSupportsFSCatalogSearch(volParms) \
230 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bSupportsFSCatalogSearch)) != 0)
231 #define VolSupportsFSExchangeObjects(volParms) \
232 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bSupportsFSExchangeObjects)) != 0)
233 #define VolSupports2TBFiles(volParms) \
234 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bSupports2TBFiles)) != 0)
235 #define VolSupportsLongNames(volParms) \
236 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bSupportsLongNames)) != 0)
237 #define VolSupportsMultiScriptNames(volParms) \
238 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bSupportsMultiScriptNames)) != 0)
239 #define VolSupportsNamedForks(volParms) \
240 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bSupportsNamedForks)) != 0)
241 #define VolSupportsSubtreeIterators(volParms) \
242 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bSupportsSubtreeIterators)) != 0)
243 #define VolL2PCanMapFileBlocks(volParms) \
244 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bL2PCanMapFileBlocks)) != 0)
245 #define VolParentModDateChanges(volParms) \
246 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bParentModDateChanges)) != 0)
247 #define VolAncestorModDateChanges(volParms) \
248 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bAncestorModDateChanges)) != 0)
249 #define VolSupportsSymbolicLinks(volParms) \
250 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bSupportsSymbolicLinks)) != 0)
251 #define VolIsAutoMounted(volParms) \
252 ((GetVolParmsInfoExtendedAttributes(volParms) & (1L << bIsAutoMounted)) != 0)
254 /*****************************************************************************/
256 #pragma mark ----- userPrivileges Bit Masks and Macros -----
259 * Bit masks and macros to get common information out of userPrivileges byte
260 * returned by FSGetCatalogInfo.
262 * Note: The userPrivileges byte is the same as the ioACUser byte returned
263 * by PBGetCatInfo, and is the 1's complement of the user's privileges
264 * byte returned in ioACAccess by PBHGetDirAccess. That's where the
265 * ioACUser names came from.
267 * The userPrivileges are user's effective privileges based on the
268 * user ID and the groups that user belongs to, and the owner, group,
269 * and everyone privileges for the given directory.
274 /* mask for just the access restriction bits */
275 kioACUserAccessMask
= (kioACUserNoSeeFolderMask
+
276 kioACUserNoSeeFilesMask
+
277 kioACUserNoMakeChangesMask
),
278 /* common access privilege settings */
279 kioACUserFull
= 0x00, /* no access restiction bits on */
280 kioACUserNone
= kioACUserAccessMask
, /* all access restiction bits on */
281 kioACUserDropBox
= (kioACUserNoSeeFolderMask
+
282 kioACUserNoSeeFilesMask
), /* make changes, but not see files or folders */
283 kioACUserBulletinBoard
= kioACUserNoMakeChangesMask
/* see files and folders, but not make changes */
287 /* Macros for testing ioACUser bits. */
289 #define UserIsOwner(userPrivileges) \
290 (((userPrivileges) & kioACUserNotOwnerMask) == 0)
291 #define UserHasFullAccess(userPrivileges) \
292 (((userPrivileges) & (kioACUserAccessMask)) == kioACUserFull)
293 #define UserHasDropBoxAccess(userPrivileges) \
294 (((userPrivileges) & kioACUserAccessMask) == kioACUserDropBox)
295 #define UserHasBulletinBoard(userPrivileges) \
296 (((userPrivileges) & kioACUserAccessMask) == kioACUserBulletinBoard)
297 #define UserHasNoAccess(userPrivileges) \
298 (((userPrivileges) & kioACUserAccessMask) == kioACUserNone)
300 /*****************************************************************************/
302 #pragma mark ----- File Access Routines -----
304 /*****************************************************************************/
306 #pragma mark FSCopyFork
313 ByteCount copyBufferSize
);
316 The FSCopyFork function copies all data from the source fork to the
317 destination fork of open file forks and makes sure the destination EOF
318 is equal to the source EOF.
320 srcRefNum --> The source file reference number.
321 dstRefNum --> The destination file reference number.
322 copyBufferPtr --> Pointer to buffer to use during copy. The
323 buffer should be at least 4K-bytes minimum.
324 The larger the buffer, the faster the copy
326 copyBufferSize --> The size of the copy buffer.
329 /*****************************************************************************/
331 #pragma mark ----- Volume Access Routines -----
333 /*****************************************************************************/
335 #pragma mark FSGetVolParms
339 FSVolumeRefNum volRefNum
,
341 GetVolParmsInfoBuffer
*volParmsInfo
,
342 UInt32
*actualInfoSize
);
345 The FSGetVolParms function returns information about the characteristics
346 of a volume. A result of paramErr usually just means the volume doesn't
347 support GetVolParms and the feature you were going to check
350 volRefNum --> Volume specification.
351 bufferSize --> Size of buffer pointed to by volParmsInfo.
352 volParmsInfo <-- A GetVolParmsInfoBuffer record where the volume
353 attributes information is returned.
354 actualInfoSize <-- The number of bytes actually returned
359 Also see: The GetVolParmsInfoBuffer Macros for checking attribute bits
363 /*****************************************************************************/
365 #pragma mark FSGetVRefNum
370 FSVolumeRefNum
*vRefNum
);
373 The FSGetVRefNum function determines the volume reference
374 number of a volume from a FSRef.
377 vRefNum <-- The volume reference number.
380 /*****************************************************************************/
382 #pragma mark FSGetVInfo
386 FSVolumeRefNum volume
,
387 HFSUniStr255
*volumeName
, /* can be NULL */
388 UInt64
*freeBytes
, /* can be NULL */
389 UInt64
*totalBytes
); /* can be NULL */
392 The FSGetVInfo function returns the name, available space (in bytes),
393 and total space (in bytes) for the specified volume.
395 volume --> The volume reference number.
396 volumeName <** An optional pointer to a HFSUniStr255.
397 If not NULL, the volume name will be returned in
399 freeBytes <** An optional pointer to a UInt64.
400 If not NULL, the number of free bytes on the
401 volume will be returned in the UInt64.
402 totalBytes <** An optional pointer to a UInt64.
403 If not NULL, the total number of bytes on the
404 volume will be returned in the UInt64.
407 /*****************************************************************************/
409 #pragma mark FSGetVolFileSystemID
412 FSGetVolFileSystemID(
413 FSVolumeRefNum volume
,
414 UInt16
*fileSystemID
, /* can be NULL */
415 UInt16
*signature
); /* can be NULL */
418 The FSGetVolFileSystemID function returns the file system ID and signature
419 of a mounted volume. The file system ID identifies the file system
420 that handles requests to a particular volume. The signature identifies the
421 volume type of the volume (for example, FSID 0 is Macintosh HFS Plus, HFS
422 or MFS, where a signature of 0x4244 identifies the volume as HFS).
423 Here's a partial list of file system ID numbers (only Apple's file systems
426 ----- -----------------------------------------------------
427 $0000 Macintosh HFS Plus, HFS or MFS
428 $0100 ProDOS File System
429 $0101 PowerTalk Mail Enclosures
430 $4147 ISO 9660 File Access (through Foreign File Access)
431 $4242 High Sierra File Access (through Foreign File Access)
432 $464D QuickTake File System (through Foreign File Access)
433 $4953 Macintosh PC Exchange (MS-DOS)
434 $4A48 Audio CD Access (through Foreign File Access)
435 $4D4B Apple Photo Access (through Foreign File Access)
436 $6173 AppleShare (later versions of AppleShare only)
438 See the Technical Note "FL 35 - Determining Which File System
439 Is Active" and the "Guide to the File System Manager" for more
442 volume --> The volume reference number.
443 fileSystemID <** An optional pointer to a UInt16.
444 If not NULL, the volume's file system ID will
445 be returned in the UInt16.
446 signature <** An optional pointer to a UInt16.
447 If not NULL, the volume's signature will
448 be returned in the UInt16.
451 /*****************************************************************************/
453 #pragma mark FSGetMountedVolumes
457 FSRef
***volumeRefsHandle
, /* pointer to handle of FSRefs */
458 ItemCount
*numVolumes
);
461 The FSGetMountedVolumes function returns the list of volumes currently
462 mounted in an array of FSRef records. The array of FSRef records is
463 returned in a Handle, volumeRefsHandle, which is allocated by
464 FSGetMountedVolumes. The caller is responsible for disposing of
465 volumeRefsHandle if the FSGetMountedVolumes returns noErr.
467 volumeRefsHandle <-- Pointer to an FSRef Handle where the array of
468 FSRefs is to be returned.
469 numVolumes <-- The number of volumes returned in the array.
472 /*****************************************************************************/
474 #pragma mark ----- FSRef/FSpec/Path/Name Conversion Routines -----
476 /*****************************************************************************/
478 #pragma mark FSRefMakeFSSpec
486 The FSRefMakeFSSpec function returns an FSSpec for the file or
487 directory specified by the ref parameter.
489 ref --> An FSRef specifying the file or directory.
493 /*****************************************************************************/
495 #pragma mark FSMakeFSRef
499 FSVolumeRefNum volRefNum
,
501 ConstStr255Param name
,
505 The FSMakeFSRef function creates an FSRef from the traditional
506 volume reference number, directory ID and pathname inputs. It is
507 functionally equivalent to FSMakeFSSpec followed by FSpMakeFSRef.
509 volRefNum --> Volume specification.
510 dirID --> Directory specification.
511 name --> The file or directory name, or NULL.
515 /*****************************************************************************/
517 #pragma mark FSMakePath
523 ConstStr255Param name
,
528 The FSMakePath function creates a pathname from the traditional volume reference
529 number, directory ID, and pathname inputs. It is functionally equivalent to
530 FSMakeFSSpec, FSpMakeFSRef, FSRefMakePath.
532 volRefNum --> Volume specification.
533 dirID --> Directory specification.
534 name --> The file or directory name, or NULL.
535 path <-- A pointer to a buffer which FSMakePath will
536 fill with a C string representing the pathname
537 to the file or directory specified. The format of
538 the pathname returned can be determined with the
539 Gestalt selector gestaltFSAttr's
540 gestaltFSUsesPOSIXPathsForConversion bit.
541 If the gestaltFSUsesPOSIXPathsForConversion bit is
542 clear, the pathname is a Mac OS File Manager full
543 pathname in a C string, and file or directory names
544 in the pathname may be mangled as returned by
545 the File Manager. If the
546 gestaltFSUsesPOSIXPathsForConversion bit is set,
547 the pathname is a UTF8 encoded POSIX absolute
548 pathname in a C string. In either case, the
549 pathname returned can be passed back to
550 FSPathMakeRef to create an FSRef to the file or
551 directory, or FSPathMakeFSSpec to craete an FSSpec
552 to the file or directory.
553 maxPathSize --> The size of the path buffer in bytes. If the path
554 buffer is too small for the pathname string,
555 FSMakePath returns pathTooLongErr or
559 /*****************************************************************************/
561 #pragma mark FSPathMakeFSSpec
567 Boolean
*isDirectory
); /* can be NULL */
570 The FSPathMakeFSSpec function converts a pathname to an FSSpec.
572 path --> A pointer to a C String that is the pathname. The
573 format of the pathname you must supply can be
574 determined with the Gestalt selector gestaltFSAttr's
575 gestaltFSUsesPOSIXPathsForConversion bit.
576 If the gestaltFSUsesPOSIXPathsForConversion bit is
577 clear, the pathname must be a Mac OS File Manager
578 full pathname in a C string. If the
579 gestaltFSUsesPOSIXPathsForConversion bit is set,
580 the pathname must be a UTF8 encoded POSIX absolute
581 pathname in a C string.
583 isDirectory <** An optional pointer to a Boolean.
584 If not NULL, true will be returned in the Boolean
585 if the specified path is a directory, or false will
586 be returned in the Boolean if the specified path is
590 /*****************************************************************************/
592 #pragma mark UnicodeNameGetHFSName
595 UnicodeNameGetHFSName(
596 UniCharCount nameLength
,
598 TextEncoding textEncodingHint
,
599 Boolean isVolumeName
,
603 The UnicodeNameGetHFSName function converts a Unicode string
604 to a Pascal Str31 (or Str27) string using an algorithm similar to that used
605 by the File Manager. Note that if the name is too long or cannot be converted
606 using the given text encoding hint, you will get an error instead of the
607 mangled name that the File Manager would return.
609 nameLength --> Number of UniChar in name parameter.
610 name --> The Unicode string to convert.
611 textEncodingHint --> The text encoding hint used for the conversion.
612 You can pass kTextEncodingUnknown to use the
613 "default" textEncodingHint.
614 isVolumeName --> If true, the output name will be limited to
615 27 characters (kHFSMaxVolumeNameChars). If false,
616 the output name will be limited to 31 characters
617 (kHFSMaxFileNameChars).
618 hfsName <-- The hfsName as a Pascal string.
622 Also see: HFSNameGetUnicodeName
625 /*****************************************************************************/
627 #pragma mark HFSNameGetUnicodeName
630 HFSNameGetUnicodeName(
631 ConstStr31Param hfsName
,
632 TextEncoding textEncodingHint
,
633 HFSUniStr255
*unicodeName
);
636 The HFSNameGetUnicodeName function converts a Pascal Str31 string to an
637 Unicode HFSUniStr255 string using the same routines as the File Manager.
639 hfsName --> The Pascal string to convert.
640 textEncodingHint --> The text encoding hint used for the conversion.
641 You can pass kTextEncodingUnknown to use the
642 "default" textEncodingHint.
643 unicodeName <-- The Unicode string.
647 Also see: UnicodeNameGetHFSName
650 /*****************************************************************************/
652 #pragma mark ----- File/Directory Manipulation Routines -----
654 /*****************************************************************************/
656 #pragma mark FSRefValid
658 Boolean
FSRefValid(const FSRef
*ref
);
661 The FSRefValid function determines if an FSRef is valid. If the result is
662 true, then the FSRef refers to an existing file or directory.
664 ref --> FSRef to a file or directory.
667 /*****************************************************************************/
669 #pragma mark FSGetParentRef
677 The FSGetParentRef function gets the parent directory FSRef of the
680 Note: FSRefs always point to real file system objects. So, there cannot
681 be a FSRef to the parent of volume root directories. If you call
682 FSGetParentRef with a ref to the root directory of a volume, the
683 function result will be noErr and the parentRef will be invalid (using it
684 for other file system requests will fail).
686 ref --> FSRef to a file or directory.
687 parentRef <-- The parent directory's FSRef.
690 /*****************************************************************************/
692 #pragma mark FSGetFileDirName
697 HFSUniStr255
*outName
);
700 The FSGetFileDirName function gets the name of the file or directory
703 ref --> FSRef to a file or directory.
704 outName <-- The file or directory name.
707 /*****************************************************************************/
709 #pragma mark FSGetNodeID
714 long *nodeID
, /* can be NULL */
715 Boolean
*isDirectory
); /* can be NULL */
718 The GetNodeIDFromFSRef function gets the node ID number of the
719 file or directory specified (note: the node ID is the directory ID
722 ref --> FSRef to a file or directory.
723 nodeID <** An optional pointer to a long.
724 If not NULL, the node ID will be returned in
726 isDirectory <** An optional pointer to a Boolean.
727 If not NULL, true will be returned in the Boolean
728 if the object is a directory, or false will be
729 returned in the Boolean if object is a file.
732 /*****************************************************************************/
734 #pragma mark FSGetUserPrivilegesPermissions
737 FSGetUserPrivilegesPermissions(
739 UInt8
*userPrivileges
, /* can be NULL */
740 UInt32 permissions
[4]); /* can be NULL */
743 The FSGetUserPrivilegesPermissions function gets the userPrivileges and/or
744 permissions of the file or directory specified.
746 ref --> FSRef to a file or directory.
747 userPrivileges <** An optional pointer to a UInt8.
748 If not NULL, the userPrivileges will be returned
750 permissions <** An optional pointer to an UInt32[4] array.
751 If not NULL, the permissions will be returned
752 in the UInt32[4] array.
755 /*****************************************************************************/
757 #pragma mark FSCheckLock
764 The FSCheckLock function determines if a file or directory is locked.
765 If FSCheckLock returns noErr, then the file or directory is not locked
766 and the volume it is on is not locked either. If FSCheckLock returns
767 fLckdErr, then the file or directory is locked. If FSCheckLock returns
768 wPrErr, then the volume is locked by hardware (i.e., locked tab on
769 removable media). If FSCheckLock returns vLckdErr, then the volume is
772 ref --> FSRef to a file or directory.
775 /*****************************************************************************/
777 #pragma mark FSGetForkSizes
782 UInt64
*dataLogicalSize
, /* can be NULL */
783 UInt64
*rsrcLogicalSize
); /* can be NULL */
786 The FSGetForkSizes returns the size of the data and/or resource fork for
789 ref --> FSRef to a file or directory.
790 dataLogicalSize <** An optional pointer to a UInt64.
791 If not NULL, the data fork's size will be
792 returned in the UInt64.
793 rsrcLogicalSize <** An optional pointer to a UInt64.
794 If not NULL, the resource fork's size will be
795 returned in the UInt64.
799 Also see: FSGetTotalForkSizes
802 /*****************************************************************************/
804 #pragma mark FSGetTotalForkSizes
809 UInt64
*totalLogicalSize
, /* can be NULL */
810 UInt64
*totalPhysicalSize
, /* can be NULL */
811 ItemCount
*forkCount
); /* can be NULL */
814 The FSGetTotalForkSizes returns the total logical size and/or the total
815 physical size of the specified file (i.e., it adds the sizes of all file
816 forks). It optionally returns the number of file forks.
818 ref --> FSRef to a file or directory.
819 totalLogicalSize <** An optional pointer to a UInt64.
820 If not NULL, the sum of all fork logical sizes
821 will be returned in the UInt64.
822 totalPhysicalSize <** An optional pointer to a UInt64.
823 If not NULL, the sum of all fork physical sizes
824 will be returned in the UInt64.
825 forkCount <** An optional pointer to a ItemCount.
826 If not NULL, the number of file forks
827 will be returned in the ItemCount.
831 Also see: FSGetForkSizes
834 /*****************************************************************************/
836 #pragma mark FSBumpDate
843 The FSBumpDate function changes the content modification date of a file
844 or directory to the current date/time. If the content modification date
845 is already equal to the current date/time, then add one second to the
846 content modification date.
848 ref --> FSRef to a file or directory.
851 /*****************************************************************************/
853 #pragma mark FSGetFinderInfo
858 FinderInfo
*info
, /* can be NULL */
859 ExtendedFinderInfo
*extendedInfo
, /* can be NULL */
860 Boolean
*isDirectory
); /* can be NULL */
863 The FSGetFinderInfo function gets the finder information for a file or
866 ref --> FSRef to a file or directory.
867 info <** An optional pointer to a FinderInfo.
868 If not NULL, the FileInfo (if ref is a file) or
869 the FolderInfo (if ref is a folder) will be
870 returned in the FinderInfo.
871 extendedInfo <** An optional pointer to a ExtendedFinderInfo.
872 If not NULL, the ExtendedFileInfo (if ref is a file)
873 or the ExtendedFolderInfo (if ref is a folder) will
874 be returned in the ExtendedFinderInfo.
875 isDirectory <** An optional pointer to a Boolean.
876 If not NULL, true will be returned in the Boolean
877 if the object is a directory, or false will be
878 returned in the Boolean if object is a file.
882 Also see: FSSetFinderInfo
885 /*****************************************************************************/
887 #pragma mark FSSetFinderInfo
892 const FinderInfo
*info
, /* can be NULL */
893 const ExtendedFinderInfo
*extendedInfo
); /* can be NULL */
896 The FSSetFinderInfo function sets the finder information for a file or
899 ref --> FSRef to a file or directory.
900 info **> A pointer to a FinderInfo record with the new
901 FileInfo (if ref is a file) or new FolderInfo
902 (if ref is a folder), or NULL if the FinderInfo
903 is not to be changed.
904 extendedInfo **> A pointer to a FinderInfo record with the new
905 ExtendedFileInfo (if ref is a file) or new
906 ExtendedFolderInfo (if ref is a folder), or NULL
907 if the ExtendedFinderInfo is not to be changed.
911 Also see: FSGetFinderInfo
914 /*****************************************************************************/
916 #pragma mark FSChangeCreatorType
925 The FSChangeCreatorType function changes the creator and/or file type of a file.
927 ref --> FSRef to a file.
928 creator --> The new creator type or 0x00000000 to leave
929 the creator type alone.
930 fileType --> The new file type or 0x00000000 to leave the
934 /*****************************************************************************/
936 #pragma mark FSChangeFinderFlags
945 The FSChangeFinderFlags function sets or clears flag bits in
946 the finderFlags field of a file's FileInfo record or a
947 directory's FolderInfo record.
949 ref --> FSRef to a file or directory.
950 setBits --> If true, then set the bits specified in flagBits.
951 If false, then clear the bits specified in flagBits.
952 flagBits --> The flagBits parameter specifies which Finder Flag
953 bits to set or clear. If a bit in flagBits is set,
954 then the same bit in fdFlags is either set or
955 cleared depending on the state of the setBits
959 /*****************************************************************************/
961 #pragma mark FSSetInvisible
967 #pragma mark FSClearInvisible
974 The FSSetInvisible and FSClearInvisible functions set or clear the
975 kIsInvisible bit in the finderFlags field of the specified file or
976 directory's finder information.
978 ref --> FSRef to a file or directory.
981 /*****************************************************************************/
983 #pragma mark FSSetNameLocked
989 #pragma mark FSClearNameLocked
996 The FSSetNameLocked and FSClearNameLocked functions set or clear the
997 kNameLocked bit bit in the finderFlags field of the specified file or
998 directory's finder information.
1000 ref --> FSRef to a file or directory.
1003 /*****************************************************************************/
1005 #pragma mark FSSetIsStationery
1011 #pragma mark FSClearIsStationery
1014 FSClearIsStationery(
1018 The FSSetIsStationery and FSClearIsStationery functions set or clear the
1019 kIsStationery bit bit in the finderFlags field of the specified file or
1020 directory's finder information.
1022 ref --> FSRef to a file or directory.
1025 /*****************************************************************************/
1027 #pragma mark FSSetHasCustomIcon
1033 #pragma mark FSClearHasCustomIcon
1036 FSClearHasCustomIcon(
1040 The FSSetHasCustomIcon and FSClearHasCustomIcon functions set or clear the
1041 kHasCustomIcon bit bit in the finderFlags field of the specified file or
1042 directory's finder information.
1044 ref --> FSRef to a file or directory.
1047 /*****************************************************************************/
1049 #pragma mark FSClearHasBeenInited
1052 FSClearHasBeenInited(
1056 The FSClearHasBeenInited function clears the kHasBeenInited bit in the
1057 finderFlags field of the specified file or directory's finder information.
1059 Note: There is no FSSetHasBeenInited function because ONLY the Finder
1060 should set the kHasBeenInited bit.
1062 ref --> FSRef to a file or directory.
1065 /*****************************************************************************/
1067 #pragma mark FSCopyFileMgrAttributes
1070 FSCopyFileMgrAttributes(
1071 const FSRef
*sourceRef
,
1072 const FSRef
*destinationRef
,
1073 Boolean copyLockBit
);
1076 The CopyFileMgrAttributes function copies all File Manager attributes
1077 from the source file or directory to the destination file or directory.
1078 If copyLockBit is true, then set the locked state of the destination
1079 to match the source.
1081 sourceRef --> FSRef to a file or directory.
1082 destinationRef --> FSRef to a file or directory.
1083 copyLockBit --> If true, set the locked state of the destination
1084 to match the source.
1087 /*****************************************************************************/
1089 #pragma mark FSMoveRenameObjectUnicode
1092 FSMoveRenameObjectUnicode(
1094 const FSRef
*destDirectory
,
1095 UniCharCount nameLength
,
1096 const UniChar
*name
, /* can be NULL (no rename during move) */
1097 TextEncoding textEncodingHint
,
1098 FSRef
*newRef
); /* if function fails along the way, newRef is final location of file */
1101 The FSMoveRenameObjectUnicode function moves a file or directory and
1102 optionally renames it. The source and destination locations must be on
1105 Note: If the input ref parameter is invalid, this call will fail and
1106 newRef, like ref, will be invalid.
1108 ref --> FSRef to a file or directory.
1109 destDirectory --> FSRef to the destination directory.
1110 nameLength --> Number of UniChar in name parameter.
1111 name --> An Unicode string with the new name for the
1112 moved object, or NULL if no rename is wanted.
1113 textEncodingHint --> The text encoding hint used for the rename.
1114 You can pass kTextEncodingUnknown to use the
1115 "default" textEncodingHint.
1116 newRef <-- The new FSRef of the object moved. Note that if
1117 this function fails at any step along the way,
1118 newRef is still then final location of the object.
1121 /*****************************************************************************/
1123 #pragma mark FSDeleteContainerContents
1126 FSDeleteContainerContents(
1127 const FSRef
*container
);
1130 The FSDeleteContainerContents function deletes the contents of a container
1131 directory. All files and subdirectories in the specified container are
1132 deleted. If a locked file or directory is encountered, it is unlocked and
1133 then deleted. If any unexpected errors are encountered,
1134 FSDeleteContainerContents quits and returns to the caller.
1136 container --> FSRef to a directory.
1140 Also see: FSDeleteContainer
1143 /*****************************************************************************/
1145 #pragma mark FSDeleteContainer
1149 const FSRef
*container
);
1152 The FSDeleteContainer function deletes a container directory and its contents.
1153 All files and subdirectories in the specified container are deleted.
1154 If a locked file or directory is encountered, it is unlocked and then
1155 deleted. After deleting the container's contents, the container is
1156 deleted. If any unexpected errors are encountered, FSDeleteContainer
1157 quits and returns to the caller.
1159 container --> FSRef to a directory.
1163 Also see: FSDeleteContainerContents
1166 /*****************************************************************************/
1168 #pragma mark IterateContainerFilterProcPtr
1170 typedef CALLBACK_API( Boolean
, IterateContainerFilterProcPtr
) (
1171 Boolean containerChanged
,
1172 ItemCount currentLevel
,
1173 const FSCatalogInfo
*catalogInfo
,
1176 const HFSUniStr255
*name
,
1180 This is the prototype for the IterateContainerFilterProc function which
1181 is called once for each file and directory found by FSIterateContainer.
1182 The IterateContainerFilterProc can use the read-only data it receives for
1185 The result of the IterateContainerFilterProc function indicates if
1186 iteration should be stopped. To stop iteration, return true; to continue
1187 iteration, return false.
1189 The yourDataPtr parameter can point to whatever data structure you might
1190 want to access from within the IterateContainerFilterProc.
1192 containerChanged --> Set to true if the container's contents changed
1194 currentLevel --> The current recursion level into the container.
1195 1 = the container, 2 = the container's immediate
1196 subdirectories, etc.
1197 catalogInfo --> The catalog information for the current object.
1198 Only the fields requested by the whichInfo
1199 parameter passed to FSIterateContainer are valid.
1200 ref --> The FSRef to the current object.
1201 spec --> The FSSpec to the current object if the wantFSSpec
1202 parameter passed to FSIterateContainer is true.
1203 name --> The name of the current object if the wantName
1204 parameter passed to FSIterateContainer is true.
1205 yourDataPtr --> An optional pointer to whatever data structure you
1206 might want to access from within the
1208 result <-- To stop iteration, return true; to continue
1209 iteration, return false.
1213 Also see: FSIterateContainer
1216 /*****************************************************************************/
1218 #pragma mark CallIterateContainerFilterProc
1220 #define CallIterateContainerFilterProc(userRoutine, containerChanged, currentLevel, catalogInfo, ref, spec, name, yourDataPtr) \
1221 (*(userRoutine))((containerChanged), (currentLevel), (catalogInfo), (ref), (spec), (name), (yourDataPtr))
1223 /*****************************************************************************/
1225 #pragma mark FSIterateContainer
1229 const FSRef
*container
,
1230 ItemCount maxLevels
,
1231 FSCatalogInfoBitmap whichInfo
,
1234 IterateContainerFilterProcPtr iterateFilter
,
1238 The FSIterateContainer function performs a recursive iteration (scan) of the
1239 specified container directory and calls your IterateContainerFilterProc
1240 function once for each file and directory found.
1242 The maxLevels parameter lets you control how deep the recursion goes.
1243 If maxLevels is 1, FSIterateContainer only scans the specified directory;
1244 if maxLevels is 2, FSIterateContainer scans the specified directory and
1245 one subdirectory below the specified directory; etc. Set maxLevels to
1246 zero to scan all levels.
1248 The yourDataPtr parameter can point to whatever data structure you might
1249 want to access from within your IterateContainerFilterProc.
1251 container --> The FSRef to the container directory to iterate.
1252 maxLevels --> Maximum number of directory levels to scan or
1253 zero to scan all directory levels.
1254 whichInfo --> The fields of the FSCatalogInfo you wish to get.
1255 wantFSSpec --> Set to true if you want the FSSpec to each
1256 object passed to your IterateContainerFilterProc.
1257 wantName --> Set to true if you want the name of each
1258 object passed to your IterateContainerFilterProc.
1259 iterateFilter --> A pointer to the IterateContainerFilterProc you
1260 want called once for each file and directory found
1261 by FSIterateContainer.
1262 yourDataPtr --> An optional pointer to whatever data structure you
1263 might want to access from within the
1267 /*****************************************************************************/
1269 #pragma mark FSGetDirectoryItems
1272 FSGetDirectoryItems(
1273 const FSRef
*container
,
1274 FSRef
***refsHandle
, /* pointer to handle of FSRefs */
1276 Boolean
*containerChanged
);
1279 The FSGetDirectoryItems function returns the list of items in the specified
1280 container. The array of FSRef records is returned in a Handle, refsHandle,
1281 which is allocated by FSGetDirectoryItems. The caller is responsible for
1282 disposing of refsHandle if the FSGetDirectoryItems returns noErr.
1284 container --> FSRef to a directory.
1285 refsHandle <-- Pointer to an FSRef Handle where the array of
1286 FSRefs is to be returned.
1287 numRefs <-- The number of FSRefs returned in the array.
1288 containerChanged <-- Set to true if the container changes while the
1289 list of items is being obtained.
1292 /*****************************************************************************/
1294 #pragma mark FSExchangeObjectsCompat
1297 FSExchangeObjectsCompat(
1298 const FSRef
*sourceRef
,
1299 const FSRef
*destRef
,
1300 FSRef
*newSourceRef
,
1304 The FSExchangeObjectsCompat function exchanges the data between two files.
1306 The FSExchangeObjectsCompat function is an enhanced version of
1307 FSExchangeObjects function. The two enhancements FSExchangeObjectsCompat
1310 1, FSExchangeObjectsCompat will work on volumes which do not support
1311 FSExchangeObjects. FSExchangeObjectsCompat does this by emulating
1312 FSExchangeObjects through a series of File Manager operations. If
1313 there is a failure at any step along the way, FSExchangeObjectsCompat
1314 attempts to undo any steps already taken to leave the files in their
1315 original state in their original locations.
1317 2. FSExchangeObjectsCompat returns new FSRefs to the source and
1318 destination files. Note that if this function fails at any step along
1319 the way, newSourceRef and newDestRef still give you access to the final
1320 locations of the files being exchanged -- even if they are renamed or
1321 not in their original locations.
1323 sourceRef --> FSRef to the source file.
1324 destRef --> FSRef to the destination file.
1325 newSourceRef <-- The new FSRef to the source file.
1326 newDestRef <-- The new FSRef to the destination file.
1329 /*****************************************************************************/
1331 #pragma mark ----- Shared Environment Routines -----
1333 /*****************************************************************************/
1335 #pragma mark FSLockRange
1338 FSLockRangeMoreFilesX(
1344 The LockRange function locks (denies access to) a portion of a file
1345 that was opened with shared read/write permission.
1347 refNum --> The file reference number of an open file.
1348 rangeLength --> The number of bytes in the range.
1349 rangeStart --> The starting byte in the range to lock.
1353 Also see: UnlockRange
1356 /*****************************************************************************/
1358 #pragma mark FSUnlockRange
1361 FSUnlockRangeMoreFilesX(
1367 The UnlockRange function unlocks (allows access to) a previously locked
1368 portion of a file that was opened with shared read/write permission.
1370 refNum --> The file reference number of an open file.
1371 rangeLength --> The number of bytes in the range.
1372 rangeStart --> The starting byte in the range to unlock.
1379 /*****************************************************************************/
1381 #pragma mark FSGetDirAccess
1386 SInt32
*ownerID
, /* can be NULL */
1387 SInt32
*groupID
, /* can be NULL */
1388 SInt32
*accessRights
); /* can be NULL */
1391 The FSGetDirAccess function retrieves the directory access control
1392 information for a directory on a shared volume.
1394 ref --> An FSRef specifying the directory.
1395 ownerID <** An optional pointer to a SInt32.
1396 If not NULL, the directory's owner ID
1397 will be returned in the SInt32.
1398 groupID <** An optional pointer to a SInt32.
1399 If not NULL, the directory's group ID, or 0
1400 if no group affiliation, will be returned in
1402 accessRights <** An optional pointer to a SInt32.
1403 If not NULL, the directory's access rights
1404 will be returned in the SInt32.
1408 Also see: FSSetDirAccess, FSMapID, FSMapName
1411 /*****************************************************************************/
1413 #pragma mark FSSetDirAccess
1420 SInt32 accessRights
);
1423 The FSpSetDirAccess function changes the directory access control
1424 information for a directory on a shared volume. You must be the owner of
1425 a directory to change its access control information.
1427 ref --> An FSRef specifying the directory.
1428 ownerID --> The directory's owner ID.
1429 groupID --> The directory's group ID or 0 if no group affiliation.
1430 accessRights --> The directory's access rights.
1434 Also see: FSGetDirAccess, FSMapID, FSMapName
1437 /*****************************************************************************/
1439 #pragma mark FSGetVolMountInfoSize
1442 FSGetVolMountInfoSize(
1443 FSVolumeRefNum volRefNum
,
1447 The FSGetVolMountInfoSize function determines the how much space the
1448 program needs to allocate for a volume mounting information record.
1450 volRefNum --> Volume specification.
1451 size <-- The space needed (in bytes) of the volume
1452 mounting information record.
1456 Also see: FSGetVolMountInfo, VolumeMount
1459 /*****************************************************************************/
1461 #pragma mark FSGetVolMountInfo
1465 FSVolumeRefNum volRefNum
,
1466 void *volMountInfo
);
1469 The FSGetVolMountInfo function retrieves a volume mounting information
1470 record containing all the information needed to mount the volume,
1471 except for passwords.
1473 volRefNum --> Volume specification.
1474 volMountInfo <-- The volume mounting information.
1478 Also see: FSGetVolMountInfoSize, VolumeMount
1481 /*****************************************************************************/
1483 #pragma mark FSVolumeMount
1487 const void *volMountInfo
,
1488 FSVolumeRefNum
*volRefNum
);
1491 The VolumeMount function mounts a volume using a volume mounting
1494 volMountInfo --> A volume mounting information record.
1495 volRefNum <-- The volume reference number.
1499 Also see: FSGetVolMountInfoSize, FSGetVolMountInfo
1502 /*****************************************************************************/
1504 #pragma mark FSMapID
1508 FSVolumeRefNum volRefNum
,
1514 The FSMapID function determines the name of a user or group if you know
1515 the user or group ID.
1517 volRefNum --> Volume specification.
1518 objType --> The mapping function code:
1519 kOwnerID2Name to map a user ID to a user name
1520 kGroupID2Name to map a group ID to a group name
1521 name <** An optional pointer to a buffer (minimum Str31).
1522 If not NULL, the user or group name
1523 will be returned in the buffer.
1527 Also see: FSGetDirAccess, FSSetDirAccess, FSMapName
1530 /*****************************************************************************/
1532 #pragma mark FSMapName
1536 FSVolumeRefNum volRefNum
,
1537 ConstStr255Param name
,
1542 The FSMapName function determines the user or group ID if you know the
1545 volRefNum --> Volume specification.
1546 name --> The user or group name.
1547 objType --> The mapping function code:
1548 kOwnerName2ID to map a user name to a user ID
1549 kGroupName2ID to map a user name to a group ID
1550 ugID <-- The user or group ID.
1554 Also see: FSGetDirAccess, FSSetDirAccess, FSMapID
1557 /*****************************************************************************/
1559 #pragma mark FSCopyFile
1563 const FSRef
*srcFileRef
,
1564 const FSRef
*dstDirectoryRef
,
1565 UniCharCount nameLength
,
1566 const UniChar
*copyName
, /* can be NULL (no rename during copy) */
1567 TextEncoding textEncodingHint
,
1568 FSRef
*newRef
); /* can be NULL */
1571 The FSCopyFile function duplicates a file and optionally renames it.
1572 The source and destination volumes must be on the same file server.
1573 This function instructs the server to copy the file.
1575 srcFileRef --> An FSRef specifying the source file.
1576 dstDirectoryRef --> An FSRef specifying the destination directory.
1577 nameLength --> Number of UniChar in copyName parameter (ignored
1578 if copyName is NULL).
1579 copyName --> Points to the new file name if the file is to be
1580 renamed, or NULL if the file isn't to be renamed.
1581 textEncodingHint --> The text encoding hint used for the rename.
1582 You can pass kTextEncodingUnknown to use the
1583 "default" textEncodingHint.
1584 newRef <** An optional pointer to a FSRef.
1585 If not NULL, the FSRef of the duplicated file
1586 will be returned in the FSRef.
1589 /*****************************************************************************/
1591 #pragma mark FSMoveRename
1595 const FSRef
*srcFileRef
,
1596 const FSRef
*dstDirectoryRef
,
1597 UniCharCount nameLength
,
1598 const UniChar
*moveName
, /* can be NULL (no rename during move) */
1599 TextEncoding textEncodingHint
,
1600 FSRef
*newRef
); /* can be NULL */
1603 The FSMoveRename function moves a file or directory (object), and
1604 optionally renames it. The source and destination locations must be on
1605 the same shared volume.
1607 srcFileRef --> An FSRef specifying the source file.
1608 dstDirectoryRef --> An FSRef specifying the destination directory.
1609 nameLength --> Number of UniChar in moveName parameter (ignored
1610 if copyName is NULL)
1611 moveName --> Points to the new object name if the object is to be
1612 renamed, or NULL if the object isn't to be renamed.
1613 textEncodingHint --> The text encoding hint used for the rename.
1614 You can pass kTextEncodingUnknown to use the
1615 "default" textEncodingHint.
1616 newRef <** An optional pointer to a FSRef.
1617 If not NULL, the FSRef of the moved object
1618 will be returned in the FSRef.
1621 /*****************************************************************************/
1623 #pragma mark ----- File ID Routines -----
1625 /*****************************************************************************/
1627 #pragma mark FSResolveFileIDRef
1631 FSVolumeRefNum volRefNum
,
1636 The FSResolveFileIDRef function returns an FSRef for the file with the
1637 specified file ID reference.
1639 volRefNum --> Volume specification.
1640 fileID --> The file ID reference.
1641 ref <-- The FSRef for the file ID reference.
1645 Also see: FSCreateFileIDRef, FSDeleteFileIDRef
1648 /*****************************************************************************/
1650 #pragma mark FSCreateFileIDRef
1658 The FSCreateFileIDRef function creates a file ID reference for the
1659 specified file, or if a file ID reference already exists, supplies
1660 the file ID reference and returns the result code fidExists or afpIDExists.
1662 ref --> The FSRef for the file.
1663 fileID <-- The file ID reference (if result is noErr,
1664 fidExists, or afpIDExists).
1668 Also see: GetFSRefFromFileIDRef, FSDeleteFileIDRef
1671 /*****************************************************************************/
1673 #pragma mark FSDeleteFileIDRef
1676 Why is there no FSDeleteFileIDRef routine? There are two reasons:
1678 1. Since Mac OS 8.1, PBDeleteFileIDRef hasn't deleted file ID references.
1679 On HFS volumes, deleting a file ID reference breaks aliases (which
1680 use file ID references to track files as they are moved around on a
1681 volume) and file ID references are automatically deleted when the file
1682 they refer to is deleted. On HFS Plus volumes, file ID references are
1683 always created when a file is created, deleted when the file is deleted,
1684 and cannot be deleted at any other time.
1686 2. PBDeleteFileIDRef causes a memory access fault under Mac OS X 10.0
1687 through 10.1.x. While this will be fixed in a future release, the
1688 implementation, like the Mac OS 8/9 implementation, does not delete
1693 Also see: GetFSRefFromFileIDRef, FSCreateFileIDRef
1696 /*****************************************************************************/
1698 #pragma mark ----- Utility Routines -----
1700 /*****************************************************************************/
1702 #pragma mark GetTempBuffer
1706 ByteCount buffReqSize
,
1707 ByteCount
*buffActSize
);
1710 The GetTempBuffer function allocates a temporary buffer for file system
1711 operations which is at least 4K bytes and a multiple of 4K bytes.
1713 buffReqSize --> Size you'd like the buffer to be.
1714 buffActSize <-- The size of the buffer allocated.
1715 function result <-- Pointer to memory allocated, or NULL if no memory
1716 was available. The caller is responsible for
1717 disposing of this buffer with DisposePtr.
1720 /*****************************************************************************/
1722 #pragma mark FileRefNumGetFSRef
1730 The FileRefNumGetFSRef function gets the FSRef of an open file.
1732 refNum --> The file reference number of an open file.
1733 ref <-- The FSRef to the open file.
1736 /*****************************************************************************/
1738 #pragma mark FSSetDefault
1742 const FSRef
*newDefault
,
1746 The FSSetDefault function sets the current working directory to the
1747 directory specified by newDefault. The previous current working directory
1748 is returned in oldDefault and must be used to restore the current working
1749 directory to its previous state with the FSRestoreDefault function.
1750 These two functions are designed to be used as a wrapper around
1751 Standard I/O routines where the location of the file is implied to be the
1752 current working directory. This is how you should use these functions:
1754 result = FSSetDefault(&newDefault, &oldDefault);
1755 if ( noErr == result )
1757 // call the Stdio functions like remove, rename,
1758 // fopen, freopen, etc here!
1760 result = FSRestoreDefault(&oldDefault);
1763 newDefault --> An FSRef that specifies the new current working
1765 oldDefault <-- The previous current working directory's FSRef.
1769 Also see: FSRestoreDefault
1772 /*****************************************************************************/
1774 #pragma mark FSRestoreDefault
1778 const FSRef
*oldDefault
);
1781 The FSRestoreDefault function restores the current working directory
1782 to the directory specified by oldDefault. The oldDefault parameter was
1783 previously obtained from the FSSetDefault function.
1784 These two functions are designed to be used as a wrapper around
1785 Standard I/O routines where the location of the file is implied to be the
1786 current working directory. This is how you should use these functions:
1788 result = FSSetDefault(&newDefault, &oldDefault);
1789 if ( noErr == result )
1791 // call the Stdio functions like remove, rename,
1792 // fopen, freopen, etc here!
1794 result = FSRestoreDefault(&oldDefault);
1797 oldDefault --> The FSRef of the location to restore.
1801 Also see: FSSetDefault
1804 /*****************************************************************************/
1806 #if PRAGMA_STRUCT_ALIGN
1807 #pragma options align=reset
1808 #elif PRAGMA_STRUCT_PACKPUSH
1810 #elif PRAGMA_STRUCT_PACK
1814 #ifdef PRAGMA_IMPORT_OFF
1817 #pragma import reset
1824 #endif /* __MOREFILESX__ */