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Application Development with Qt Creator

Application Development with Qt Creator

By : Eng
2.3 (4)
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Application Development with Qt Creator

Application Development with Qt Creator

2.3 (4)
By: Eng

Overview of this book

Qt is a powerful development framework that serves as a complete toolset for building cross-platform applications, helping you reduce development time and improve productivity. Completely revised and updated to cover C++17 and the latest developments in Qt 5.12, this comprehensive guide is the third edition of Application Development with Qt Creator. You'll start by designing a user interface using Qt Designer and learn how to instantiate custom messages, forms, and dialogues. You'll then understand Qt's support for multithreading, a key tool for making applications responsive, and the use of Qt's Model-View-Controller (MVC) to display data and content. As you advance, you'll learn to draw images on screen using Graphics View Framework and create custom widgets that interoperate with Qt Widgets. This Qt programming book takes you through Qt Creator's latest features, such as Qt Quick Controls 2, enhanced CMake support, a new graphical editor for SCXML, and a model editor. You'll even work with multimedia and sensors using Qt Quick, and finally develop applications for mobile, IoT, and embedded devices using Qt Creator. By the end of this Qt book, you'll be able to create your own cross-platform applications from scratch using Qt Creator and the C++ programming language.
Table of Contents (19 chapters)
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1
Section 1: The Basics
7
Section 2: Advanced Features
12
Section 3: Practical Matters

Playing audio clips and sound effects

Qt Quick provides the SoundEffect type to play short sound effects with minimum latency. This is especially good for things such as button click sounds, virtual keyboard sounds, and alert tones as part of a rich and engaging multimedia experience. Using it is straightforward; you provide the type with a source field and call its play method to start the playback, as follows:

import QtQuick 2.12
import QtQuick.Window 2.12
import QtMultimedia 5.12

Window {
visible: true
width: 320
height: 240
title: qsTr("Play Sound")

Text {
text: "Click Me!";
font.pointSize: 24;
width: 150; height: 50;

SoundEffect {
id: playSound
source: "soundeffect.wav"
}
MouseArea {
id: playArea
anchors.fill: parent
onPressed: { playSound...

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