NAME
ParentDir -- Obtain the parent of a directory or file
SYNOPSIS
newlock = ParentDir( lock )
D0 D1
BPTR ParentDir(BPTR)FUNCTION
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.)
INPUTS
lock - BCPL pointer to a lock
RESULTS
newlock - BCPL pointer to a lock
SEE ALSO