1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2017 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtSensors module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #include <QObject> 41 #include <qaccelerometer.h> 42 #include <qmagnetometer.h> 43 #include <qorientationsensor.h> 44 45 class MyObject : public QObject 46 { 47 void create(); 48 }; 49 create()50void MyObject::create() 51 { 52 //! [Creating a sensor] 53 // On the heap (deleted when this object is deleted) 54 QAccelerometer *sensor = new QAccelerometer(this); 55 56 // On the stack (deleted when the current scope ends) 57 QOrientationSensor orient_sensor; 58 //! [Creating a sensor] 59 60 Q_UNUSED(sensor) 61 Q_UNUSED(orient_sensor); 62 63 { 64 //! [2] 65 QMagnetometer *magnetometer = new QMagnetometer(this); 66 //! [2] 67 Q_UNUSED(magnetometer); 68 } 69 70 { 71 //! [3] 72 QSensor *magnetometer = new QSensor(QMagnetometer::type, this); 73 //! [3] 74 Q_UNUSED(magnetometer); 75 } 76 77 } 78 79