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Hands-On Embedded Programming with Qt

You're reading from   Hands-On Embedded Programming with Qt Develop high performance applications for embedded systems with C++ and Qt 5

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Product type Paperback
Published in Jul 2019
Publisher Packt
ISBN-13 9781789952063
Length 416 pages
Edition 1st Edition
Languages
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Author (1):
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John Werner John Werner
Author Profile Icon John Werner
John Werner
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Table of Contents (22) Chapters Close

Preface 1. Section 1: Getting Started with Embedded Qt FREE CHAPTER
2. Setting Up the Environment 3. Writing Your First Qt Application 4. Running Your First Application on the Target 5. Section 2: Working with Embedded Qt
6. Important Qt Concepts 7. Managing the Overall Workflow 8. Exploring GUI Technologies 9. Adding More Features 10. Section 3: Deep Dive into Embedded Qt
11. Qt in the Embedded World 12. Exploring the IoT with Qt 13. Using More Qt-Related Technologies 14. Section 4: Advanced Techniques and Best Practices
15. Debugging, Logging, and Monitoring Qt Applications 16. Responsive Application Programming - Threads 17. Qt Best Practices 18. Assessments 19. Other Books You May Enjoy Appendix A: BigProject Requirements
1. Appendix B: Bonus Code - Simplifying Q_PROPERTY

Forecasting the weather using a Web API

Members of the marketing team have come up with another idea. They would like BigProject to be able to display the current outside temperature for where we are, so they wrote this:

Req. 21: Display the current temperature for a city.

This might seem a difficult requirement to fulfill, but Qt comes to the rescue: QtNetworkAccessManager makes it incredibly easy to retrieve data from internet sources that support HTTP or HTTPS access, so we will use it.

We will start by finding a weather API we can use, and then we will move on to retrieving weather information using QtNetworkAccessManager. Finally, we will test the code and make sure it really does what we want.

Searching for a weather API

...
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