Qt Bluetooth 概要

QBluetoothLocalDevice localDevice;
QString localDeviceName;

// Check if Bluetooth is available on this device
if (localDevice.isValid()) {

    // Turn Bluetooth on
    localDevice.powerOn();

    // Read local device name
    localDeviceName = localDevice.name();

    // Make it visible to others
    localDevice.setHostMode(QBluetoothLocalDevice::HostDiscoverable);

    // Get connected devices
    QList<QBluetoothAddress> remotes;
    remotes = localDevice.connectedDevices();
}

voidMyClass::startDeviceDiscovery()
{

    // ディスカバリーエージェントを作成し、そのシグナルに接続する
    QBluetoothDeviceDiscoveryAgent*discoveryAgent = newQBluetoothDeviceDiscoveryAgent(this);
    connect(discoveryAgent,SIGNAL(deviceDiscovered(QBluetoothDeviceInfo)),
            this,SLOT(deviceDiscovered(QBluetoothDeviceInfo)));

    // 検出を開始
    discoveryAgent->start();

    //...
}

// ローカルスロット内で、検出されたデバイスに関する情報を読み取る
voidMyClass::deviceDiscovered(constQBluetoothDeviceInfo&device)
{
    qDebug() << "Found new device:" << device.name() << '(' << device.address().toString() << ')';
}

rfcommServer= newQBluetoothServer(QBluetoothServiceInfo::RfcommProtocol, this);
connect(rfcommServer, &QBluetoothServer::newConnection,
        this, QOverload<>::of(&ChatServer::clientConnected));
boolresult= rfcommServer->listen(localAdapter);
if(!result) {
    qWarning() << "Cannot bind chat server to" << localAdapter.toString();
   return;
}

voidChatClient::startClient(constQBluetoothServiceInfo&remoteService)
{
    if(socket)
        return;

    // サービスに接続
    socket= newQBluetoothSocket(QBluetoothServiceInfo::RfcommProtocol);
    qDebug() << "Create socket";
    socket->connectToService(remoteService);
    qDebug() << "ConnectToService done";

    connect(socket, &QBluetoothSocket::readyRead, this, &ChatClient::readSocket);
    connect(socket, &QBluetoothSocket::connected, this, QOverload<>::of(&ChatClient::connected));
    connect(socket, &QBluetoothSocket::disconnected, this, &ChatClient::disconnected);
    connect(socket, &QBluetoothSocket::errorOccurred, this, &ChatClient::onSocketErrorOccurred);
}