Casio IT-2000W Technical Reference Manual page 219

Acknowledgment of Received Data
Validates barcode data in the reception buffer of the Library. If data is not received completely as
barcode data after the validation, it will be acknowledged as invalid date.
SYNTAX
#include "obrlib.h"
int FAR PASCAL _export OBR_Stat();
INPUT
None
OUTPUT
The absolute value shows the number of characters in the received barcode (not
including a CR). The sign indicates whether the data is a complete barcode or not.
< 0
> 0
Incomplete barcode
Complete barcode
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