Book Image

Cross-Platform Development with Qt 6 and Modern C++

By : Nibedit Dey
Book Image

Cross-Platform Development with Qt 6 and Modern C++

By: Nibedit Dey

Overview of this book

Qt is a cross-platform application development framework widely used for developing applications that can run on a wide range of hardware platforms with little to no change in the underlying codebase. If you have basic knowledge of C++ and want to build desktop or mobile applications with a modern graphical user interface (GUI), Qt is the right choice for you. Cross-Platform Development with Qt 6 and Modern C++ helps you understand why Qt is one of the favorite GUI frameworks adopted by industries worldwide, covering the essentials of programming GUI apps across a multitude of platforms using the standard C++17 and Qt 6 features. Starting with the fundamentals of the Qt framework, including the features offered by Qt Creator, this practical guide will show you how to create classic user interfaces using Qt Widgets and touch-friendly user interfaces using Qt Quick. As you advance, you'll explore the Qt Creator IDE for developing applications for multiple desktops as well as for embedded and mobile platforms. You will also learn advanced concepts about signals and slots. Finally, the book takes you through debugging and testing your app with Qt Creator IDE. By the end of this book, you'll be able to build cross-platform applications with a modern GUI along with the speed and power of native apps.
Table of Contents (17 chapters)
Section 1: The Basics
Section 2: Cross-Platform Development
Section 3: Advanced Programming, Debugging, and Deployment

Different analysis tools and optimization strategies

You can optimize your application at multiple levels other than just at a code level. Optimization can also be done at a memory or binary. You can modify your application to make it work more efficiently by using fewer resources. However, there can be a trade-off between memory and performance. Based on your hardware configuration, you can decide a strategy as to whether memory usage or processing time is important. In some embedded platforms with memory limitations, you can allow the processing time to be a little longer to use less memory and keep the application responsive. You can also delegate some part of the optimization task to the compiler.

Let's have a look at different strategies we can use to build, analyze, and deploy faster.

Memory profiling and analysis tools

In this section, we will discuss some additional tools you can use to analyze your application. Note that we won't be discussing these tools...