Intermec 5055 Reference Guide

This function receives one byte of data through the designated communications port.
This function is identical to MS-DOS INT 14H service 02H.

#include "im5055.h"
IM_STATUS im_receive_byte

    (IM_COM_PORT 

port_id

,

    IM_UCHAR *

receive_byte

);

The port_id parameter identifies the communications port as follows:

IM_COM1

COM1.

IM_COM2

COM2.

The receive_byte parameter is a pointer to the byte received from the communications
port.

This function returns one of the standard status codes defined in Appendix A, "Status
Codes."

This function requires the PC standard protocol handler 

PHPCSTD.EXE

.

If you are using 

PHIMEC.EXE

 and want to receive a single byte, use im_receive_buffer

with a buffer length of one instead of the im_receive_byte procedure.

This procedure will not work if linked.

im_transmit_byte

/******************** im_receive_byte *******************************/
/* Uses Borland _bio_serialcom or Microsoft _bios_serialcom  to init the   */
/* com port for single byte receive.                                       */
/* Operations. It sets up for 9600,E,7,1 on serial port                    */
/* To Terminate reception of bytes:                                        */
/*    To end the reception of bytes from the host, type <ESC> on JANUS     */
/*     and then type a Ctrl Z on the host                                  */
/* Note: Phimec protocol handler must NOT be installed to run this routine */
/*       Phpcstd protocol handler must be installed to run this routine    */

#include <stdio.h>
#include <dos.h>
#include <conio.h>

#include <bios.h>
#include <string.h>
#include "im5055.h"
#include "immsg.h"