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.

Parameter	Description
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.
end	Last record (or byte) in the range.

See Also: Lock, Open.

Example

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
End Sub