HP Remote Graphics Software (RGS) Bedienungsanleitung PDF herunterladen (Seite 93)

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101

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Take No Action

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Restart the Service

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Run a Program

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Restart the Computer

Sample agent

The following sample Windows agent monitors the HPRemote event log and interprets its events. Comments

are included in the agent code showing where additional code would be added to determine if the number of

primary users has dropped to zero. If so, further code can be added to terminate applications on the sender.

The sample code is a xed-polling Windows agent that reads and interprets the HPRemote event log. The

agent uses two functions:

processEvent(eventServer, eventSource, dwEventNum)

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open event log, read event dwEventNum, close event log

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if a valid read, process recognized EventIDs, then return

monitorEvents(eventServer, eventSource, seconds)

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for a nite number of seconds (or innite if seconds <= 0) do

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open event log, read log length, close event log

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if log has changed, processEvent(), else sleep for X ms.

To properly use the function monitorEvents(...), the following strings must be dened in the function

call:

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LPCTSTR eventServer: if string is dened as "\\\\yourservername", then the log is stored on a

remote server - if the string is empty (NULL), then the log is stored locally (note that four backlashes

compiles to two in a string constant)

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LPCTSTR eventSource: the name of the target event generator, e.g., rgreceiver

The sample agent uses Microsoft event logging functions such as OpenEventLog, ReadEventLog, and

CloseEventLog.

The sample agent is listed below. Where noted, user-specic code should be added. The agent header le,

RGSenderEvents.h, is installed in the RGS Sender installation directory under the following path:

\include\RGSenderEvents.h

#include <windows.h>

#include <stdio.h>

#include "RGSenderEvents.h"

#define BUFFER_SIZE 1024 // safe EVENTLOGRECORD size for now

#define EVENT_SERVER NULL // remote server = "\\\\nodename"; local = NULL

#define EVENT_SRC "rgsender" // specifies specific event name source

in // HPRemote

BOOL processEvent(LPCTSTR eventServer, LPCTSTR eventSource, DWORD

dwEventNum)

Sample agent 83

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