24.06.2022 
There are a few small, and sometimes already quite old, features in Qt that, when combined, can be a very nice way to deal with assets in your QML application — especially if some of them live on the file system, some in a resource, and some may need localization or translation. Let’s dive in! […]
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install_name_tool and Universal Binaries How arm64 Affected an x86_64 App, and How We Fixed It
With Apple moving to Apple Silicon for all of their new products, software developers are having to figure out how to support both Intel and Apple Silicon devices. Like some of our customers, you may not be ready to move to Apple Silicon. Unfortunately, that doesn’t necessarily exempt you from dealing with universal binaries, especially […]
KDE Frameworks – Part 3 KCoreAddons
Every sizable project has a ‘utils’ file or folder that contains functionality that is needed more than once but too small to be a library. KDE is no different, except we want to share our ‘utils’ folder across hundreds of projects. This is where the KCoreAddons framework comes into play. The name comes from the […]
KDAB at Embedded World 2022 in Nuremberg June 21st - 23rd
Book a meetingAfter two years of frustration and delays, Embedded World is finally back and KDAB will be there at the Qt booth, number 258 in Hall 4. As usual we’ll be showing some great demos – updates to some golden oldies, and some brand new ones. Get your free ticket here and come and […]
Structured Bindings with Qt SQL
Some time ago, I wrote a post about integrating Qt’s associative containers with the fancy new C++ features, range-based for loops with structured bindings. That post inspired KDAB’s own Giuseppe D’Angelo to add the asKeyValueRange member function to both QHash and QMap. Now it’s possible to iterate over them with a simple range-based for loop, […]
Say No to Qt Style Sheets Making the Right Choice Between QStyle and Qt Style Sheets, Upfront
You have two choices when it comes to giving a custom style to your Qt widgets. Qt Style Sheets are very convenient for getting started — just a few CSS-like rules, and they work. It is our experience, however, that Qt Style Sheets create too much trouble and a QStyle subclass (*) gives a better […]
JSONify All Things Extending the nlohmann/json Library
The nlohmann/json library is everything a developer can expect from a modern library — easy to integrate and JSON objects are treated as first class citizens with a very intuitive API. However, it has one problem that is widely mentioned across the internet, which I’ll tell you about below. Various solutions to the problem have […]
C++23 Will Be Really Awesome (a blog for April Fools Day)
C++23 is feature complete and on track to be released next year. While many people are complaining that it’s, after all, a “minor” release (as the pandemic made the Committee work very difficult), C++23 still has a few very significant changes. In this blog post, I want to talk about what I think is my […]
The Qt Less Traveled Fixing Bugs in Qt's Lesser-used Features, for Profit (and fun!)
Qt is a high quality library, but it is also massive in number of features. This massive number results in a higher likelihood that there are bugs that go unnoticed lying around in its less frequently used features or combination of features. Our friends at qgis.org hired us to solve some of those issues that had […]
CXX-Qt Safe Rust Bindings for Qt
At KDAB, we have been investigating how to integrate Rust with Qt in a safe and idiomatic way. The solution we are currently working on is called CXX-Qt. It’s available in the GitHub and on crates.io. This blog post discusses the journey of CXX-Qt — where it started, where it can be used right now, […]