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<h1 class="title">device.cpp Example File</h1>
<span class="subtitle">lowenergyscanner/device.cpp</span>
<!-- $$$lowenergyscanner/device.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">
<span class="comment">/***************************************************************************
**
** Copyright (C) 2013 BlackBerry Limited. All rights reserved.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtBluetooth module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include "device.h"</span>
<span class="preprocessor">#include <qbluetoothaddress.h></span>
<span class="preprocessor">#include <qbluetoothdevicediscoveryagent.h></span>
<span class="preprocessor">#include <qbluetoothlocaldevice.h></span>
<span class="preprocessor">#include <qbluetoothdeviceinfo.h></span>
<span class="preprocessor">#include <qbluetoothservicediscoveryagent.h></span>
<span class="preprocessor">#include <QDebug></span>
<span class="preprocessor">#include <QList></span>
<span class="preprocessor">#include <QMetaEnum></span>
<span class="preprocessor">#include <QTimer></span>
Device<span class="operator">::</span>Device()
{
discoveryAgent <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qbluetoothdevicediscoveryagent.html">QBluetoothDeviceDiscoveryAgent</a></span>();
discoveryAgent<span class="operator">-</span><span class="operator">></span>setLowEnergyDiscoveryTimeout(<span class="number">5000</span>);
connect(discoveryAgent<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qbluetoothdevicediscoveryagent.html">QBluetoothDeviceDiscoveryAgent</a></span><span class="operator">::</span>deviceDiscovered<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Device<span class="operator">::</span>addDevice);
connect(discoveryAgent<span class="operator">,</span> <span class="type">QOverload</span><span class="operator"><</span><span class="type"><a href="qbluetoothdevicediscoveryagent.html">QBluetoothDeviceDiscoveryAgent</a></span><span class="operator">::</span>Error<span class="operator">></span><span class="operator">::</span>of(<span class="operator">&</span><span class="type"><a href="qbluetoothdevicediscoveryagent.html">QBluetoothDeviceDiscoveryAgent</a></span><span class="operator">::</span>error)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Device<span class="operator">::</span>deviceScanError);
connect(discoveryAgent<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qbluetoothdevicediscoveryagent.html">QBluetoothDeviceDiscoveryAgent</a></span><span class="operator">::</span>finished<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Device<span class="operator">::</span>deviceScanFinished);
setUpdate(<span class="string">"Search"</span>);
}
Device<span class="operator">::</span><span class="operator">~</span>Device()
{
<span class="keyword">delete</span> discoveryAgent;
<span class="keyword">delete</span> controller;
qDeleteAll(devices);
qDeleteAll(m_services);
qDeleteAll(m_characteristics);
devices<span class="operator">.</span>clear();
m_services<span class="operator">.</span>clear();
m_characteristics<span class="operator">.</span>clear();
}
<span class="type">void</span> Device<span class="operator">::</span>startDeviceDiscovery()
{
qDeleteAll(devices);
devices<span class="operator">.</span>clear();
<span class="keyword">emit</span> devicesUpdated();
setUpdate(<span class="string">"Scanning for devices ..."</span>);
discoveryAgent<span class="operator">-</span><span class="operator">></span>start(<span class="type"><a href="qbluetoothdevicediscoveryagent.html">QBluetoothDeviceDiscoveryAgent</a></span><span class="operator">::</span>LowEnergyMethod);
<span class="keyword">if</span> (discoveryAgent<span class="operator">-</span><span class="operator">></span>isActive()) {
m_deviceScanState <span class="operator">=</span> <span class="keyword">true</span>;
Q_EMIT stateChanged();
}
}
<span class="type">void</span> Device<span class="operator">::</span>addDevice(<span class="keyword">const</span> <span class="type"><a href="qbluetoothdeviceinfo.html">QBluetoothDeviceInfo</a></span> <span class="operator">&</span>info)
{
<span class="keyword">if</span> (info<span class="operator">.</span>coreConfigurations() <span class="operator">&</span> <span class="type"><a href="qbluetoothdeviceinfo.html">QBluetoothDeviceInfo</a></span><span class="operator">::</span>LowEnergyCoreConfiguration) {
<span class="keyword">auto</span> d <span class="operator">=</span> <span class="keyword">new</span> DeviceInfo(info);
devices<span class="operator">.</span>append(d);
setUpdate(<span class="string">"Last device added: "</span> <span class="operator">+</span> d<span class="operator">-</span><span class="operator">></span>getName());
}
}
<span class="type">void</span> Device<span class="operator">::</span>deviceScanFinished()
{
<span class="keyword">emit</span> devicesUpdated();
m_deviceScanState <span class="operator">=</span> <span class="keyword">false</span>;
<span class="keyword">emit</span> stateChanged();
<span class="keyword">if</span> (devices<span class="operator">.</span>isEmpty())
setUpdate(<span class="string">"No Low Energy devices found..."</span>);
<span class="keyword">else</span>
setUpdate(<span class="string">"Done! Scan Again!"</span>);
}
<span class="type">QVariant</span> Device<span class="operator">::</span>getDevices()
{
<span class="keyword">return</span> <span class="type">QVariant</span><span class="operator">::</span>fromValue(devices);
}
<span class="type">QVariant</span> Device<span class="operator">::</span>getServices()
{
<span class="keyword">return</span> <span class="type">QVariant</span><span class="operator">::</span>fromValue(m_services);
}
<span class="type">QVariant</span> Device<span class="operator">::</span>getCharacteristics()
{
<span class="keyword">return</span> <span class="type">QVariant</span><span class="operator">::</span>fromValue(m_characteristics);
}
<span class="type">QString</span> Device<span class="operator">::</span>getUpdate()
{
<span class="keyword">return</span> m_message;
}
<span class="type">void</span> Device<span class="operator">::</span>scanServices(<span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>address)
{
<span class="comment">// We need the current device for service discovery.</span>
<span class="keyword">for</span> (<span class="keyword">auto</span> d: qAsConst(devices)) {
<span class="keyword">auto</span> device <span class="operator">=</span> qobject_cast<span class="operator"><</span>DeviceInfo <span class="operator">*</span><span class="operator">></span>(d);
<span class="keyword">if</span> (<span class="operator">!</span>device)
<span class="keyword">continue</span>;
<span class="keyword">if</span> (device<span class="operator">-</span><span class="operator">></span>getAddress() <span class="operator">=</span><span class="operator">=</span> address )
currentDevice<span class="operator">.</span>setDevice(device<span class="operator">-</span><span class="operator">></span>getDevice());
}
<span class="keyword">if</span> (<span class="operator">!</span>currentDevice<span class="operator">.</span>getDevice()<span class="operator">.</span>isValid()) {
qWarning() <span class="operator"><</span><span class="operator"><</span> <span class="string">"Not a valid device"</span>;
<span class="keyword">return</span>;
}
qDeleteAll(m_characteristics);
m_characteristics<span class="operator">.</span>clear();
<span class="keyword">emit</span> characteristicsUpdated();
qDeleteAll(m_services);
m_services<span class="operator">.</span>clear();
<span class="keyword">emit</span> servicesUpdated();
setUpdate(<span class="string">"Back\n(Connecting to device...)"</span>);
<span class="keyword">if</span> (controller <span class="operator">&</span><span class="operator">&</span> m_previousAddress <span class="operator">!</span><span class="operator">=</span> currentDevice<span class="operator">.</span>getAddress()) {
controller<span class="operator">-</span><span class="operator">></span>disconnectFromDevice();
<span class="keyword">delete</span> controller;
controller <span class="operator">=</span> nullptr;
}
<span class="keyword">if</span> (<span class="operator">!</span>controller) {
<span class="comment">// Connecting signals and slots for connecting to LE services.</span>
controller <span class="operator">=</span> <span class="type"><a href="qlowenergycontroller.html">QLowEnergyController</a></span><span class="operator">::</span>createCentral(currentDevice<span class="operator">.</span>getDevice());
connect(controller<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qlowenergycontroller.html">QLowEnergyController</a></span><span class="operator">::</span>connected<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Device<span class="operator">::</span>deviceConnected);
connect(controller<span class="operator">,</span> <span class="type">QOverload</span><span class="operator"><</span><span class="type"><a href="qlowenergycontroller.html">QLowEnergyController</a></span><span class="operator">::</span>Error<span class="operator">></span><span class="operator">::</span>of(<span class="operator">&</span><span class="type"><a href="qlowenergycontroller.html">QLowEnergyController</a></span><span class="operator">::</span>error)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Device<span class="operator">::</span>errorReceived);
connect(controller<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qlowenergycontroller.html">QLowEnergyController</a></span><span class="operator">::</span>disconnected<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Device<span class="operator">::</span>deviceDisconnected);
connect(controller<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qlowenergycontroller.html">QLowEnergyController</a></span><span class="operator">::</span>serviceDiscovered<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Device<span class="operator">::</span>addLowEnergyService);
connect(controller<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qlowenergycontroller.html">QLowEnergyController</a></span><span class="operator">::</span>discoveryFinished<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Device<span class="operator">::</span>serviceScanDone);
}
<span class="keyword">if</span> (isRandomAddress())
controller<span class="operator">-</span><span class="operator">></span>setRemoteAddressType(<span class="type"><a href="qlowenergycontroller.html">QLowEnergyController</a></span><span class="operator">::</span>RandomAddress);
<span class="keyword">else</span>
controller<span class="operator">-</span><span class="operator">></span>setRemoteAddressType(<span class="type"><a href="qlowenergycontroller.html">QLowEnergyController</a></span><span class="operator">::</span>PublicAddress);
controller<span class="operator">-</span><span class="operator">></span>connectToDevice();
m_previousAddress <span class="operator">=</span> currentDevice<span class="operator">.</span>getAddress();
}
<span class="type">void</span> Device<span class="operator">::</span>addLowEnergyService(<span class="keyword">const</span> <span class="type"><a href="qbluetoothuuid.html">QBluetoothUuid</a></span> <span class="operator">&</span>serviceUuid)
{
<span class="type"><a href="qlowenergyservice.html">QLowEnergyService</a></span> <span class="operator">*</span>service <span class="operator">=</span> controller<span class="operator">-</span><span class="operator">></span>createServiceObject(serviceUuid);
<span class="keyword">if</span> (<span class="operator">!</span>service) {
qWarning() <span class="operator"><</span><span class="operator"><</span> <span class="string">"Cannot create service for uuid"</span>;
<span class="keyword">return</span>;
}
<span class="keyword">auto</span> serv <span class="operator">=</span> <span class="keyword">new</span> ServiceInfo(service);
m_services<span class="operator">.</span>append(serv);
<span class="keyword">emit</span> servicesUpdated();
}
<span class="type">void</span> Device<span class="operator">::</span>serviceScanDone()
{
setUpdate(<span class="string">"Back\n(Service scan done!)"</span>);
<span class="comment">// force UI in case we didn't find anything</span>
<span class="keyword">if</span> (m_services<span class="operator">.</span>isEmpty())
<span class="keyword">emit</span> servicesUpdated();
}
<span class="type">void</span> Device<span class="operator">::</span>connectToService(<span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>uuid)
{
<span class="type"><a href="qlowenergyservice.html">QLowEnergyService</a></span> <span class="operator">*</span>service <span class="operator">=</span> nullptr;
<span class="keyword">for</span> (<span class="keyword">auto</span> s: qAsConst(m_services)) {
<span class="keyword">auto</span> serviceInfo <span class="operator">=</span> qobject_cast<span class="operator"><</span>ServiceInfo <span class="operator">*</span><span class="operator">></span>(s);
<span class="keyword">if</span> (<span class="operator">!</span>serviceInfo)
<span class="keyword">continue</span>;
<span class="keyword">if</span> (serviceInfo<span class="operator">-</span><span class="operator">></span>getUuid() <span class="operator">=</span><span class="operator">=</span> uuid) {
service <span class="operator">=</span> serviceInfo<span class="operator">-</span><span class="operator">></span>service();
<span class="keyword">break</span>;
}
}
<span class="keyword">if</span> (<span class="operator">!</span>service)
<span class="keyword">return</span>;
qDeleteAll(m_characteristics);
m_characteristics<span class="operator">.</span>clear();
<span class="keyword">emit</span> characteristicsUpdated();
<span class="keyword">if</span> (service<span class="operator">-</span><span class="operator">></span>state() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qlowenergyservice.html">QLowEnergyService</a></span><span class="operator">::</span>DiscoveryRequired) {
connect(service<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qlowenergyservice.html">QLowEnergyService</a></span><span class="operator">::</span>stateChanged<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Device<span class="operator">::</span>serviceDetailsDiscovered);
service<span class="operator">-</span><span class="operator">></span>discoverDetails();
setUpdate(<span class="string">"Back\n(Discovering details...)"</span>);
<span class="keyword">return</span>;
}
<span class="comment">//discovery already done</span>
<span class="keyword">const</span> <span class="type">QList</span><span class="operator"><</span><span class="type"><a href="qlowenergycharacteristic.html">QLowEnergyCharacteristic</a></span><span class="operator">></span> chars <span class="operator">=</span> service<span class="operator">-</span><span class="operator">></span>characteristics();
<span class="keyword">for</span> (<span class="keyword">const</span> <span class="type"><a href="qlowenergycharacteristic.html">QLowEnergyCharacteristic</a></span> <span class="operator">&</span>ch : chars) {
<span class="keyword">auto</span> cInfo <span class="operator">=</span> <span class="keyword">new</span> CharacteristicInfo(ch);
m_characteristics<span class="operator">.</span>append(cInfo);
}
<span class="type">QTimer</span><span class="operator">::</span>singleShot(<span class="number">0</span><span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>Device<span class="operator">::</span>characteristicsUpdated);
}
<span class="type">void</span> Device<span class="operator">::</span>deviceConnected()
{
setUpdate(<span class="string">"Back\n(Discovering services...)"</span>);
connected <span class="operator">=</span> <span class="keyword">true</span>;
controller<span class="operator">-</span><span class="operator">></span>discoverServices();
}
<span class="type">void</span> Device<span class="operator">::</span>errorReceived(<span class="type"><a href="qlowenergycontroller.html">QLowEnergyController</a></span><span class="operator">::</span>Error <span class="comment">/*error*/</span>)
{
qWarning() <span class="operator"><</span><span class="operator"><</span> <span class="string">"Error: "</span> <span class="operator"><</span><span class="operator"><</span> controller<span class="operator">-</span><span class="operator">></span>errorString();
setUpdate(<span class="type">QString</span>(<span class="string">"Back\n(%1)"</span>)<span class="operator">.</span>arg(controller<span class="operator">-</span><span class="operator">></span>errorString()));
}
<span class="type">void</span> Device<span class="operator">::</span>setUpdate(<span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>message)
{
m_message <span class="operator">=</span> message;
<span class="keyword">emit</span> updateChanged();
}
<span class="type">void</span> Device<span class="operator">::</span>disconnectFromDevice()
{
<span class="comment">// UI always expects disconnect() signal when calling this signal</span>
<span class="comment">// TODO what is really needed is to extend state() to a multi value</span>
<span class="comment">// and thus allowing UI to keep track of controller progress in addition to</span>
<span class="comment">// device scan progress</span>
<span class="keyword">if</span> (controller<span class="operator">-</span><span class="operator">></span>state() <span class="operator">!</span><span class="operator">=</span> <span class="type"><a href="qlowenergycontroller.html">QLowEnergyController</a></span><span class="operator">::</span>UnconnectedState)
controller<span class="operator">-</span><span class="operator">></span>disconnectFromDevice();
<span class="keyword">else</span>
deviceDisconnected();
}
<span class="type">void</span> Device<span class="operator">::</span>deviceDisconnected()
{
qWarning() <span class="operator"><</span><span class="operator"><</span> <span class="string">"Disconnect from device"</span>;
<span class="keyword">emit</span> disconnected();
}
<span class="type">void</span> Device<span class="operator">::</span>serviceDetailsDiscovered(<span class="type"><a href="qlowenergyservice.html">QLowEnergyService</a></span><span class="operator">::</span>ServiceState newState)
{
<span class="keyword">if</span> (newState <span class="operator">!</span><span class="operator">=</span> <span class="type"><a href="qlowenergyservice.html">QLowEnergyService</a></span><span class="operator">::</span>ServiceDiscovered) {
<span class="comment">// do not hang in "Scanning for characteristics" mode forever</span>
<span class="comment">// in case the service discovery failed</span>
<span class="comment">// We have to queue the signal up to give UI time to even enter</span>
<span class="comment">// the above mode</span>
<span class="keyword">if</span> (newState <span class="operator">!</span><span class="operator">=</span> <span class="type"><a href="qlowenergyservice.html">QLowEnergyService</a></span><span class="operator">::</span>DiscoveringServices) {
<span class="type">QMetaObject</span><span class="operator">::</span>invokeMethod(<span class="keyword">this</span><span class="operator">,</span> <span class="string">"characteristicsUpdated"</span><span class="operator">,</span>
<span class="type">Qt</span><span class="operator">::</span>QueuedConnection);
}
<span class="keyword">return</span>;
}
<span class="keyword">auto</span> service <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qlowenergyservice.html">QLowEnergyService</a></span> <span class="operator">*</span><span class="operator">></span>(sender());
<span class="keyword">if</span> (<span class="operator">!</span>service)
<span class="keyword">return</span>;
<span class="keyword">const</span> <span class="type">QList</span><span class="operator"><</span><span class="type"><a href="qlowenergycharacteristic.html">QLowEnergyCharacteristic</a></span><span class="operator">></span> chars <span class="operator">=</span> service<span class="operator">-</span><span class="operator">></span>characteristics();
<span class="keyword">for</span> (<span class="keyword">const</span> <span class="type"><a href="qlowenergycharacteristic.html">QLowEnergyCharacteristic</a></span> <span class="operator">&</span>ch : chars) {
<span class="keyword">auto</span> cInfo <span class="operator">=</span> <span class="keyword">new</span> CharacteristicInfo(ch);
m_characteristics<span class="operator">.</span>append(cInfo);
}
<span class="keyword">emit</span> characteristicsUpdated();
}
<span class="type">void</span> Device<span class="operator">::</span>deviceScanError(<span class="type"><a href="qbluetoothdevicediscoveryagent.html">QBluetoothDeviceDiscoveryAgent</a></span><span class="operator">::</span>Error error)
{
<span class="keyword">if</span> (error <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qbluetoothdevicediscoveryagent.html">QBluetoothDeviceDiscoveryAgent</a></span><span class="operator">::</span>PoweredOffError)
setUpdate(<span class="string">"The Bluetooth adaptor is powered off, power it on before doing discovery."</span>);
<span class="keyword">else</span> <span class="keyword">if</span> (error <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qbluetoothdevicediscoveryagent.html">QBluetoothDeviceDiscoveryAgent</a></span><span class="operator">::</span>InputOutputError)
setUpdate(<span class="string">"Writing or reading from the device resulted in an error."</span>);
<span class="keyword">else</span> {
<span class="keyword">static</span> <span class="type">QMetaEnum</span> qme <span class="operator">=</span> discoveryAgent<span class="operator">-</span><span class="operator">></span>metaObject()<span class="operator">-</span><span class="operator">></span>enumerator(
discoveryAgent<span class="operator">-</span><span class="operator">></span>metaObject()<span class="operator">-</span><span class="operator">></span>indexOfEnumerator(<span class="string">"Error"</span>));
setUpdate(<span class="string">"Error: "</span> <span class="operator">+</span> QLatin1String(qme<span class="operator">.</span>valueToKey(error)));
}
m_deviceScanState <span class="operator">=</span> <span class="keyword">false</span>;
<span class="keyword">emit</span> devicesUpdated();
<span class="keyword">emit</span> stateChanged();
}
bool Device<span class="operator">::</span>state()
{
<span class="keyword">return</span> m_deviceScanState;
}
bool Device<span class="operator">::</span>hasControllerError() <span class="keyword">const</span>
{
<span class="keyword">return</span> (controller <span class="operator">&</span><span class="operator">&</span> controller<span class="operator">-</span><span class="operator">></span>error() <span class="operator">!</span><span class="operator">=</span> <span class="type"><a href="qlowenergycontroller.html">QLowEnergyController</a></span><span class="operator">::</span>NoError);
}
bool Device<span class="operator">::</span>isRandomAddress() <span class="keyword">const</span>
{
<span class="keyword">return</span> randomAddress;
}
<span class="type">void</span> Device<span class="operator">::</span>setRandomAddress(bool newValue)
{
randomAddress <span class="operator">=</span> newValue;
<span class="keyword">emit</span> randomAddressChanged();
}
</pre>
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<!-- @@@lowenergyscanner/device.cpp -->
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