# unlock statement

The unlock statement resets an execution
lock, in the range 0 to 991, previously set with a lock statement.

## Syntax

```
unlock
unlock lock.num.exp
```

## Parameter(s)

| lock.num.exp | Specifies which execution lock (from 0 to 991) to reset. If not specified, all locks set by the program are unlocked. |
| --- | --- |

## Example(s)

This conditionally sets execution
lock 12 just before a segment of code that performs file retrieval
and update. When complete, lock 12 is cleared by the unlock statement.

```
again: lock 12 else rqm; goto again
read rec from file,ID else print ID:" not found"; rec = "X"
write rec on file,ID
unlock 12
```

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Source: https://d3codex.com/pickbasic-flashbasic/unlock-statement/ - part of the D3Codex reference.