Unlock
 
Removes a previous access restriction (lock) on a file

Syntax

Unlock #filenum, record
Unlock #filenum, start To end

Parameters

filenum
The file number used to Open the file.
record
The record (Random files) to unlock.
start
The first byte position (Binary files) in a range to unlock.
end
The last byte position (Binary files) in a range to unlock.

Description

Unlock removes the temporary access restriction set by Lock.

It is strongly recommended to use the same arguments used in the previous Lock.

Note: This command does not always work, neither as documented nor as expected. It appears to be broken at the moment.

Example

For an example see Lock.

Differences from QB

  • Currently, FB cannot implicitly unlock the entire file
  • In Random mode, FB cannot unlock a range of records

See also