Programming instructions

169
Intermec Fingerprint 6.13 – Programmer's Guide
Extensions to ERRHAND.PRG Utility Program
The following subroutines are not included in ERRHAND.PRG,
but may be added manually to stop new input via the printer's
keyboard while a subroutine is executed:
•Turn off all keys before entering a subroutine by issuing the
statement GOSUB 900000.
•Turn on all keys after having completed a subroutine by issuing
the statement GOSUB 800000.
800000 'Turn all keys on
800010 I% = 0
800020 IF I% > 21 THEN GOTO 800060
800030 KEY (I%) ON
800040 I% = I% + 1
800050 GOTO 800020
800060 RETURN
900000 'Turn all keys off
900010 I% = 0
900020 IF I% > 21 THEN GOTO 900060
900030 KEY (I%) OFF
900040 I% = I% + 1
900050 GOTO 900020
900060 RETURN
16. ERROR-HANDLING, cont'd.
4. Error-Handling
Program, cont'd.