Docs » Autodocs » dos.library » ParentDir
ParentDir -- Obtain the parent of a directory or file
newlock = ParentDir( lock )
D0 D1
BPTR ParentDir(BPTR)
The argument 'lock' is associated with a given file or directory.
ParentDir() returns 'newlock' which is associated the parent
directory of 'lock'.
Taking the ParentDir() of the root of the current filing system
returns a NULL (0) lock. Note this 0 lock represents the root of
file system that you booted from (which is, in effect, the parent
of all other file system roots.)
lock - BCPL pointer to a lock
newlock - BCPL pointer to a lock
Lock(), DupLock(), UnLock(), ParentOfFH(), DupLockFromFH()
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