UNLOCK

• Source: https://www.freebasic.net/wiki/wikka.php?wakka=KeyPgUnlock
• Last revised: 2017-11-21

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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.

Examples

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

• Lock
• Open
• ScreenUnlock

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