/**************************************************************************** ** ** Copyright (C) 2021 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Creator documentation. ** ** 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. ** ** GNU Free Documentation License Usage ** Alternatively, this file may be used under the terms of the GNU Free ** Documentation License version 1.3 as published by the Free Software ** Foundation and appearing in the file included in the packaging of ** this file. Please review the following information to ensure ** the GNU Free Documentation License version 1.3 requirements ** will be met: https://www.gnu.org/licenses/fdl-1.3.html. ** ****************************************************************************/ /*! \page qmldesigner-connections.html \previouspage qtquick-adding-dynamics.html \nextpage quick-signals.html \title Adding Connections \list \li \l{Connecting Components to Signals} A signal and handler mechanism enables components to respond to application events, which are represented by \e signals. When a signal is emitted, the corresponding \e {signal handler} is invoked to respond to the event by applying an action, for example. \li \l{Adding Bindings Between Properties} A component's property can be assigned a static value that stays constant until it is explicitly changed. To make the UI more dynamic, you can use \e {property bindings}. This means that you can specify relationships between component properties so that when the value of a property changes, the values of any properties that are bound to it are automatically updated accordingly. \li \l{Specifying Dynamic Properties} Each preset component has a set of preset properties that you can specify values for. You can add custom properties that would not otherwise exist for a particular \l{Component Types} {component type} or your custom components. \if defined(qtcreator) \li \l{Managing C++ Backend Objects} Application developers can access QObject objects implemented in C++ from QML files. \endif \endlist For an example of using properties, bindings, and connections to create a scalable push button, see \l{Creating Scalable Buttons and Borders}. */