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Hands-On GUI Programming with C++ and Qt5

Hands-On GUI Programming with C++ and Qt5

By : Eng, Lee Z Eng
3 (8)
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Hands-On GUI Programming with C++ and Qt5

Hands-On GUI Programming with C++ and Qt5

3 (8)
By: Eng, Lee Z Eng

Overview of this book

Qt 5, the latest version of Qt, enables you to develop applications with complex user interfaces for multiple targets. It provides you with faster and smarter ways to create modern UIs and applications for multiple platforms. This book will teach you to design and build graphical user interfaces that are functional, appealing, and user-friendly. In the initial part of the book, you will learn what Qt 5 is and what you can do with it. You will explore the Qt Designer, discover the different types of widgets generally used in Qt 5, and then connect your application to the database to perform dynamic operations. Next, you will be introduced to Qt 5 chart which allows you to easily render different types of graphs and charts and incorporate List View Widgets in your application. You will also work with various Qt modules, like QtLocation, QtWebEngine, and the networking module through the course of the book. Finally, we will focus on cross-platform development with QT 5 that enables you to code once and run it everywhere, including mobile platforms. By the end of this book, you will have successfully learned about high-end GUI applications and will be capable of building many more powerful, cross-platform applications.
Table of Contents (18 chapters)
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Uploading files to the FTP server

Since we don't have any files in our FTP directory yet (except the file list), let's write the code to allow us to upload our first file.

  1. First, open mainwindow.ui and right click on the Open button. Then, select Go to slot and select the clicked() option:
  1. A slot function will be automatically created for you. Then, add the following code to the function to open up the file selector window for our users to select their desired file for upload:
void MainWindow::on_openButton_clicked() 
{ 
   QString fileName = QFileDialog::getOpenFileName(this, "Select 
File", qApp->applicationDirPath()); ui->uploadFileInput->setText(fileName); }
  1. After that, repeat this step and do the same for the Upload button. This time, the code for its slot function looks something like the following:
void MainWindow::on_uploadButton_clicked...

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