Unlock Instruction

Syntax              Unlock StreamNum
-or-
Unlock StreamNum, RecordNum
-or-
Unlock StreamNum, [start] To end

Group                File

Description       Form 1: Unlock all of StreamNum.

Form 2: Unlock a record (or byte) of StreamNum.

Form 3: Unlock a range of records (or bytes) of StreamNum. If start is omitted then unlock starting at the first record (or byte).

Note: For sequential files (Input, Output and Append) unlock always affects the entire file.

StreamNum         Streams 1 through 255 are private to each macro. Streams 256 through 511 are shared by all macros. 

RecordNum          For Random mode files this is the record number. The first record is 1. Otherwise, it is the byte position. The first byte is 1. 

start                    First record (or byte) in the range.

See Also            Lock, Open.

Example            '#Language "WWB-COM"
Sub Main
    Dim V As Variant
    Open "SAVE_V.DAT" For Binary As #1
    Lock #1
    Get #1, 1, V
    V = "Hello"
    Put #1, 1, V
    Unlock #1
   'Close #1
EndSub