In this episode I'll implement a simple bar chart, which involves painting the actual bars.

With your current knowledge of QPainter, you would likely have a hard time if I asked you to draw an analog clock. Obviously, you know you can draw a line between two points with drawLine, but how do you determine these two points for say the 5 o'clock marker?

Where are the pixels for the outline of a rectangle drawn? Inside the rectangle? Outside the rectangle? Or in between?

This episode of KDAB News includes: KDAB Training Day 2025: dates, courses and why nd?; Effective Modern QML course by Nicolas Fella - Trainer Overview; How is this course different from the other 2 QML courses?; Other courses information; Qt World Summit 2025: date and tickets

In this episode, we will look at the operations that QPainter offers, and especially, try to understand the drawText() method which is far from trivial.

Qt has a poor man's version of theming your application by changing the color schemes. It is most certainly used in KDE, but besides that I've never really seen it in action. It does, however, have quite some impact on how you do something as simple as changing the background color of a push button. Watch this episode to learn more.

In this episode you will learn how to draw the outline and the filling of, say, an elipse; the difference between QPixmap and QImage; how to (almost) implement your own screen saver with a wobbling text with a color gradient through it, and more.

In this module, we will talk about painting your own widgets, and we will see a number of techniques and classes involved in this. We will start with this episode where we discuss the very simplest way to get some pixels on the screen.

The second of two videos where KDAB's CEO Kalle Dalheimer discusses the pros and cons of the Cyber Resilience Act (CRA), whose main goal is to improve cybersecurity in the EU by establishing strict standards for digital products and software.

CXX-Qt is KDAB's extension to CXX, which adds Qt features like properties, signals and slots to CXX. In this step-by-step tutorial, we implement a QAbstractItemModel subclass, which is key to exposing structured data to QML.

The main goal of the Cyber Resilience Act (CRA) is to improve cybersecurity in the EU by establishing strict standards for digital products and software. It primarily aims to prevent cyber threats that could endanger essential infrastructure, businesses, and the digital economy. In this video Matthias Kalle Dalheimer, President and CEO of KDAB, shares his view on the CRA and its effect on open source software. This is Part 1 of two videos on the subject.

CXX-Qt is KDAB's extension to CXX, which adds Qt features like properties, signals and slots to CXX. In this step-by-step tutorial, we extend our "Hello World!" application from the last video with a very basic Qt GUI.