Rockwell-automation 1747-PCINT API Software for 1746 I/O Manual de usuario descargar pdf (Pagina 38)

3–12 Developing Applications

Publication 1747-6.5.3 June 1998

Programming

Example for

Windows NT

The following Windows NT example (sample.c on your Windows NT API disk)

shows how to program the above steps. Callouts on the right margin identify the

code for each step.

/********************************************************************

* Title: Simple application sample code for 1746 I/O PCI Interface API

* Abstract:

* This file contains a simple application using the PCI

* bus interface API.

* Environment:

* 1747-PCIS 1746 I/O PCI Interface

* Microsoft Windows NT 4.0

* Microsoft Visual C++ / Borland C++

* (c)Copyright Allen-Bradley *

************************************************************************/

/*=======================================================================

= INCLUDE FILES =

=======================================================================*/

#include <windows.h>

#include <process.h>

#include <stdio.h>

#include <stdlib.h>

#include <time.h>

#include <conio.h>

#include <string.h>

#include "ocapi.h"

/*=======================================================================

= MODULE WIDE GLOBAL VARIABLES =

=======================================================================*/

HANDLE OChandle;

OCIOCFG OCcfg;

/************************************************************************

* Entry point:

* Ioexit

* Description:

* Common error handling routine. This routine displays any

* extended error and exits the program.

* Arguments:

* rc : int ( input )

* This error code is passed to the exit() routine.

* External effects:

* The program is terminated.

* Return value:

* none

* Access: Public

* -----------------------------------------------------------------------

* Notes:

*************************************************************************/

void Ioexit

int rc

) {

OCEXTERR exterr;

char *msg;

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Rockwell-automation 1747-PCINT API Software for 1746 I/O Manual de usuario Pagina 38

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