Casio IT-2000W manual Readout of Received Data

Readout of Received Data

Acquires the first barcode in the reception buffer and writes it to the specified buffer. The reception data SYNTAX is as follows:

Barcode

Fig. 8.33

SYNTAX

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#include "obrlib.h"

int FAR PASCAL _export OBR_Read(void far *pBuf);

INPUT

pBuf = Pointer to the buffer that stores the received barcode

OUTPUT

The absolute value shows the number of characters in the received barcode.

The sign indicates the validity of the barcode.

> 0 Length of received data.

= 0 Either the reception acknowledgment is not performed (OBR_Stat function is not used) or there is no received data.

< 0 Valid data does not exist.

Note :

Before reading a barcode using this function, acknowledge reception with the OBR_Stat function. Note that received barcode data will be cleared from the reception buffer after it has been read by the OBR_Read function. This means that the following barcode can be read immediately after the preceding one, even if there is an error, has been read.

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