Programming instructions

Intermec Fingerprint 6.13 – Programmer's Guide

Continued!

8. OUTPUT FROM FINGERPRINT, cont'd.

3. Output and Append to

Sequential Files

The following instructions are used in connection with output to

sequential files:

OPEN Creates and/or opens a file for sequential

OUTPUT or APPEND and optionally

specifies the record length in bytes.

PRINT# Prints data entered as numeric or string

expressions to the specified file.

PRINTONE# Prints data entered as ASCII values to the

specified file.

CLOSE Closes an OPENed file.

LOC Returns the number of 128-byte blocks,

that have been written since the file was

OPENed.

LOF Returns the length in bytes of the speci-

fied file.

To print data to a sequential file, proceed as follows:

OPEN

Before any data can be written to a sequential file, it must be opened.

Use the OPEN statement to specify the name of the file and the

mode of access (OUTPUT or APPEND).

• OUTPUT means that existing data will be replaced.

• APPEND means that new data will be appended to existing data.

In the OPEN statement you must also assign a number to the

OPENed file, which is used when the file is referred to in other

instructions. The number mark (#) is optional. Optionally, the

length of the record can also be changed (default 128 bytes). Up to

10 files and devices can be open at the same time.

Examples:

The file "ADDRESSES" is opened for output and given the refer-

ence number 1:

OPEN "ADDRESSES FOR OUTPUT AS #1

The file "PRICELIST" is opened for append and is given the

reference number 5:

OPEN "PRICELIST" FOR APPEND AS #2