Prosoft-technology MVI56E-LDM Instrukcja Użytkownika Pobierz pdf (Strona 200)

CIP API Functions ControlLogix Platform ♦ "C" Programmable

Developer's Manual Linux Application Development Module

Page 194 of 264 ProSoft Technology, Inc.

March 12, 2014

OCXcip_GetDisplay

Syntax

int OCXcip_GetDisplay (OCXHANDLE apihandle,

char * display_string);

Parameters

apihandle

handle returned by previous call to OCXcip_Open

display_string

Pointer to buffer to receive displayed string

Description

OCXcip_GetDisplay allows and application to load 4 ASCII characters to the

alphanumeric display.

apihandle must be a valid handle returned from OCXcip_Open.

display_string must be a pointer to a buffer that is at least 5 bytes in length. On

successful return, this buffer will contain the 4-character display string and

terminating NULL character.

Return Value

OCX_SUCCESS

The display was read successfully

OCX_ERR_NOACCESS

apihandle does not have access

Example

OCXHANDLE apiHandle;

char buf[5];

/* Display the time as HHMM */

OCXcip_SetDisplay (apiHandle, buf);

1 2 ... 195 196 197 198 199 200 201 202 203 204 205 ... 263 264

Brak uwag

Prosoft-technology MVI56E-LDM Instrukcja Użytkownika Strona 200