COPY BLOB

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4D Language Reference
- BLOB
- - BLOB PROPERTIES
  - BLOB size
  - BLOB TO DOCUMENT
  - BLOB to integer
  - BLOB to list
  - BLOB to longint
  - BLOB to real
  - BLOB to text
  - BLOB TO VARIABLE
  - COMPRESS BLOB
  - COPY BLOB
  - DECRYPT BLOB
  - DELETE FROM BLOB
  - DOCUMENT TO BLOB
  - ENCRYPT BLOB
  - EXPAND BLOB
  - INSERT IN BLOB
  - INTEGER TO BLOB
  - LIST TO BLOB
  - LONGINT TO BLOB
  - REAL TO BLOB
  - SET BLOB SIZE
  - TEXT TO BLOB
  - VARIABLE TO BLOB

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4D v20 R7

4D Language Reference

BLOB

COPY BLOB


COPY BLOB ( srcBLOB ; dstBLOB ; srcOffset ; dstOffset ; len )

Parameter	Type	Description
srcBLOB	BLOB	Source BLOB
dstBLOB	BLOB	Destination BLOB
srcOffset	Longint	Source position for the copy
dstOffset	Longint	Destination position for the copy
len	Longint	Number of bytes to be copied

Description

The COPY BLOB command copies the number of bytes specified by len from the BLOB srcBLOB to the BLOB dstBLOB.

The copy starts at the position (expressed relative to the beginning of the source BLOB) specified by srcOffset and takes place at the position (expressed relative to the beginning of the destination BLOB) specified by dstOffset.

Note: The destination BLOB can be resized if necessary.