Mastering Qt 5: Create stunning cross-platform applications using C++ with Qt Widgets and QML with Qt Quick , Second Edition

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Discovering qmake Secrets

This chapter addresses the issue of creating a cross-platform application that relies on platform-specific code. We will see the impact of qmake on the compilation of your project.

You will learn how to create a system-monitoring application that retrieves the average CPU load and the memory used from Windows, Linux, and macOS. For this kind of OS-dependent application, architecture is the key to keeping your application reliable and maintainable.

By the end of this chapter, you will be able to create and organize a cross-platform application that uses platform-specific code and displays Qt Charts widgets. Moreover, qmake will not be a mystery anymore.

This chapter covers the following topics:

Designing a cross-platform project
Exploring Qt Charts
The .pro file in depth
Under the hood of qmake

Key benefits

Unleash the power of Qt 5.11 with C++

Build applications using Qt Widgets (C++) or Qt Quick (QML)

Create cross-platform applications for mobile and desktop platforms with Qt 5

Description

Qt 5.11 is an app development framework that provides a great user experience and develops full capability applications with Qt Widgets, QML, and even Qt 3D. Whether you're building GUI prototypes or fully-fledged cross-platform GUI applications with a native look and feel, Mastering Qt 5 is your fastest, easiest, and most powerful solution. This book addresses various challenges and teaches you to successfully develop cross-platform applications using the Qt framework, with the help of well-organized projects. Working through this book, you will gain a better understanding of the Qt framework, as well as the tools required to resolve serious issues, such as linking, debugging, and multithreading. You'll start off your journey by discovering the new Qt 5.11 features, soon followed by exploring different platforms and learning to tame them. In addition to this, you'll interact with a gamepad using Qt Gamepad. Each chapter is a logical step for you to complete in order to master Qt. By the end of this book, you'll have created an application that has been tested and is ready to be shipped.

What you will learn

Create stunning UIs with Qt Widgets and Qt Quick 2

Develop powerful, cross-platform applications with the Qt framework

Design GUIs with the Qt Designer and build a library in it for UI previews

Handle user interaction with the Qt signal or slot mechanism in C++

Prepare a cross-platform project to host a third-party library

Use the Qt Animation framework to display stunning effects

Deploy mobile apps with Qt and embedded platforms

Interact with a gamepad using Qt Gamepad

What do you get with Print?

Instant access to your digital eBook copy whilst your Print order is Shipped

Paperback book shipped to your preferred address

Download this book in EPUB and PDF formats

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DRM FREE - Read whenever, wherever and however you want

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Ahmed H. Apr 25, 2020

I've just finished reading this book and wow! The implemented projects are pretty good at demonstrating the capabilities of Qt. I liked the variety of projects, scenarios, and target platforms.It is certainly an intermediate level book: if you know absolutely nothing about desktop/mobile/general programming then this might not be the one for you. And it certainly isn't a book for a guy who spent more then 2 years working on Qt.

Amazon Verified review

Maxim Rozhkov Jun 10, 2019

The book completely covers the most important parts of the Qt library: signals/slots, the concept of Model/View, QML, Qt containers, multi-threading, and network programming. There are a lot of tips about using C++ 11/14, great patterns and in-depth explanations. There are many useful examples of applications, for instance – the album of photos for Windows/MacOS/Linux/Android/iOS. It would be naïve to expect, that the book contains a detailed description of C++ 14 – you should be an intermediate C++ developer if you want to clearly understand ideas from the book. Also, some topics are not enough deeply explained, because of their complexity. I spent lots of time trying to build Qt for Raspberry PI and an application for iOS/Android – there are many unexpected things the real life. Anyway, the book is awesome! The authors used vivid language – I read it as a novel. Thank you guys, for your great job!

BRET KID Nov 01, 2020

Good book

Naga Prasad Jan 16, 2024

Good introduction. A bit technical. Will suit engineers and developers.

TB Oct 28, 2018

I purchased the 1st edition of this book when it was first released, and noticed a number of issues. Due to various factors I did not finish that edition. So when this edition was released recently, I noticed that it was based upon Qt 5.11.x, so I purchased it and promised myself I would diligently work through every page of the book. Normally I don't write a review on a book until I've finished working through it. While I am currently working through chapter 4 in this book, I felt it important to go ahead and write a preliminary review for people who may be contemplating the book--because there aren't any reviews at all as I write this.Overall, I feel that there is much to be learned from this book. Browsing through the table of contents, it looks very promising. And in the first four chapters I have definitely learned a few things about working with Qt--specifically about how to create projects that use sub-projects, like the "solutions vs projects" theme seen with MS Visual Studio. It's easy enough to do once you see it, but until you do...it is a bit perplexing. So that's one of the most useful things I've learned thus far in the first 3+ chapters.I will say though that there are several errors in the book, which is why I've only rated it as 4-stars so far. I am compiling a list of errata as I work through the book, and thus far I have submitted errata to the publisher for both chapters 2 and 3. This book would have definitely benefited by a good technical review, as there are many things that made it through that really shouldn't have. One piece of advice to prospective readers is to look through the book's source code files (downloadable from the publisher's website) if you have any problems understanding what the author is discussing in the chapters. The assumption is, I think, that the reader will not be typing in the source code themselves, but rather will simply be using the source code provided by the author--and in fact you really can't even complete the book without doing do, because the author doesn't actually give the implementation (in the text) for many of the class methods in the book. So unless you want to take a crack at writing the implementation for these methods yourself, you'll need to get the details from his source code files. And if you could do that, you really wouldn't need the book. This is most unfortunate, as I believe you learn much more by typing in the code yourself...especially when you're first learning the API.Anyway, please don't get the wrong idea about the book from this one review. In fact it really does seem to be an excellent book--but it could be even better had there been some rigorous technical editing done during the writing process. The errors I have found thus far have arguably made me a "better" Qt developer, because I have been forced to go investigate things for myself to actually know (for example) what detail the author has omitted or been less-than-clear about. But I've also been working in Qt for a few years now, intermittently, so this has made it a bit easier for me. I have to wonder though, how many other readers of the book will go to the same lengths.

Mastering Qt 5: Create stunning cross-platform applications using C++ with Qt Widgets and QML with Qt Quick , Second Edition

What do you get with Print?

Mastering Qt 5

Discovering qmake Secrets

Designing a cross-platform project

Transforming SysInfo into a singleton

Exploring Qt Charts

CpuWidget using QCharts

Memory using Qcharts

The .pro file in depth

Under the hood of qmake

Beneath Q_OBJECT and signals/slots

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