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Qt 6 C++ GUI Programming Cookbook

Qt 6 C++ GUI Programming Cookbook

By : Eng
5 (7)
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Qt 6 C++ GUI Programming Cookbook

Qt 6 C++ GUI Programming Cookbook

5 (7)
By: Eng

Overview of this book

With the growing need to develop GUIs for multiple targets and multiple screens, improving the visual quality of your application has become pivotal in helping it stand out from your competitors. With its cross-platform ability and the latest UI paradigms, Qt makes it possible to build intuitive, interactive, and user-friendly UIs for your applications. The third edition of Qt 6 C++ GUI Programming Cookbook teaches you how to develop functional and appealing UIs using the latest version of Qt 6 and C++. This book will help you learn a variety of topics such as GUI customization and animation, graphics rendering, and implementing Google Maps. You’ll also be taken through advanced concepts such as asynchronous programming, event handling using signals and slots, network programming, and other aspects to optimize your application. By the end of this Qt book, you’ll have the confidence you need to design and customize GUI applications that meet your clients' expectations and have an understanding of best-practice solutions to common problems during the app development process.
Table of Contents (17 chapters)
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Converting currency

In this example, we will learn how to create a simple currency converter using Qt, with the help of an external service provider called Fixer.io.

How to do it…

Make yourself a currency converter by following these simple steps:

  1. Open Qt Creator and create a new Qt Widgets Application project from File | New Project....
  2. Open the project file (.pro) and add the network module to our project:
    QT += core gui network
  3. Open mainwindow.ui and remove the menu bar, toolbar, and status bar from the UI.
  4. Add three horizontal layouts, a horizontal line, and a push button to the canvas. Left-click on the canvas, and continue by clicking the Lay Out Vertically button on top of the canvas. Change the label of the push button to Convert. The UI should look something like this:
Figure 11.10 – Place three vertical layouts above the Convert button

Figure 11.10 – Place three vertical layouts above the Convert button

  1. Add two labels to the top layout, and set the text of the left...

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