qb64/internal/help/UNLOCK.md at c7bfef667f23cb8929bfce62ea064367928e4c0c

QB64/qb64

mirror of https://github.com/QB64Official/qb64.git synced 2024-07-07 20:20:25 +00:00

Cory Smith 3ff2da7d90 Swapping out txt help files in favor of md files.

2022-09-02 17:04:18 -05:00

The UNLOCK statement opens access to parts or all of a file to other programs and network users.

Syntax

UNLOCK [#]fileNumber% UNLOCK [#]fileNumber%, record& UNLOCK [#]fileNumber%, [firstRecord&] TO lastRecord&

fileNumber% is the file number of the file to unlock.
In the first syntax, the entire file is unlocked.
In the second syntax, record& is the record number of the file to unlock.
In the third syntax, the records or bytes in the range [firstRecord&,lastRecord&] are unlocked. If firstRecord& is omitted, it is assumed to be the first record or byte.
For files opened in BINARY mode, each record corresponds to a single byte.
LOCK and UNLOCK statements are always used in pairs and each statement must match the other one.
Files must be unlocked before other programs can access them, and before the file is closed.
Keywords currently not supported