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Inside Macintosh: Files /
Chapter 2 - File Manager / File Manager Reference
File System Specification Routines / Accessing Information About Files and Directories


You can use the FSpRstFLock function to unlock a file.

FUNCTION FSpRstFLock (spec: FSSpec): OSErr;
An FSSpec record specifying the file to unlock.
The FSpRstFLock function unlocks a file.

If the PBHGetVolParms function indicates that the volume supports folder locking (that is, the bHasFolderLock bit of the vMAttrib field is set), you can use FSpRstFLock to unlock a directory.

The trap macro and routine selector for FSpRstFLock are
Trap macroSelector

noErr0No error
nsvErr-35No such volume
ioErr-36I/O error
fnfErr-43File not found
wPrErr-44Hardware volume lock
vLckdErr-46Software volume lock
dirNFErr-120Directory not found or incomplete pathname
afpAccessDenied-5000User does not have the correct access to the file
afpObjectTypeErr-5025Folder locking not supported by volume

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© Apple Computer, Inc.
2 JUL 1996