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Hands-On GUI Programming with C++ and Qt5

You're reading from   Hands-On GUI Programming with C++ and Qt5 Build stunning cross-platform applications and widgets with the most powerful GUI framework

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Product type Paperback
Published in Apr 2018
Publisher Packt
ISBN-13 9781788397827
Length 404 pages
Edition 1st Edition
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Authors (2):
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Lee Zhi Eng Lee Zhi Eng
Author Profile Icon Lee Zhi Eng
Lee Zhi Eng
Lee  Z Eng Lee Z Eng
Author Profile Icon Lee Z Eng
Lee Z Eng
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Table of Contents (18) Chapters Close

Preface 1. Introduction to Qt FREE CHAPTER 2. Qt Widgets and Style Sheets 3. Database Connection 4. Graphs and Charts 5. Item Views and Dialogs 6. Integrating Web Content 7. Map Viewer 8. Graphics View 9. The Camera Module 10. Instant Messaging 11. Implementing a Graphics Editor 12. Cloud Storage 13. Multimedia Viewers 14. Qt Quick and QML 15. Cross-Platform Development 16. Testing and Debugging 17. Other Books You May Enjoy

Sessions, cookies, and cache

Just like any other web browser, the WebEngine module also supports mechanisms used to store temporary data and persistent data for session and cache. Sessions and cache are very important as they allow websites to remember your last visit and associate you with data, such as a shopping cart. The definitions of a session, a cookie, and a cache are shown as follows:

  • Session: Normally, sessions are server-side files that contain user information with a unique identifier, which gets sent from the client side to map them to a specific user. In Qt, however, a session simply means a cookie that doesn't have any expiration date, and hence it will be gone when the program is closed.
  • Cookie: Cookies are client-side files that contain user information or any other information that you want to save. Unlike sessions, cookies have an expiration date which...
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