Casio IT-2000W manual OBR Library, Obrlib.H

8.6.4OBR Library

Overview

The OBR library is used to control the OBRs (Barcode Reader) from application programs developed by the user with the C language or Visual BASIC. It supports the following two OBRs :

DT-9650BCR : Pen-type barcode reader

DT-9656BCR : CCD barcode reader

Note about the Libraries

This library consists of the following three files. Any application program that uses this library should include obrlib.h in the corresponding source file. Constants that are passed to the library functions and their prototypes are defined in the following header files.

OBRLIB.H	Header file for the OBR library
LIBOBR.LIB	Library to call OBRLIB.DLL from C language.
OBRLIB.DLL	OBR library

OBRLIB.DLL is downloaded to the same directory of an application program or to the directory of Windows when it is used. The type of OBR to use is specified as parameter when OBR_Open is called.

No.	Function	Description
216	OBR_Open	Initialization of COM port and power on
217	OBR_Close	Release of COM port and power off
218	OBR_Send	Transmission of command to OBR
219	OBR_Stat	Acknowledgment of received data
220	OBR_Read	Read of the received data
221	OBR_Clear	Invalidation of codes in reception buffer
222	OBR_SetUserEvent	Event definition issued when reception is completed.

The OBRLIB.DLL uses the system library (SysCall.DLL) to turn on and off the power supply of the COM port. To use this library, an environment which allows the use of SysCall.DLL must be available.

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