| [Overview][Constants][Types][Procedures and functions][Index] |
Source position: amigados.pas line 2277
function ParentDir( |
Lock: BPTR |
):BPTR; |
Lock |
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Lock to get parent directory of. |
Returns a lock to the parent directory or 0, in which case the supplied lock has no parent directory (because it is the root directory) or an error occured. IoErr() returns 0 in the former case and a different value on error.
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 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.)
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Lock a directory or file |
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Duplicate a lock |
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Unlock a directory or file |
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Returns a lock on the parent directory of a file |
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Gets a lock on an open file |