18.11.2021 
CMake is increasingly becoming the de-facto build system for C++ projects. While it has been possible to build Qt applications using CMake for a long time, with Qt6, Qt switched its own internal build system to CMake. The KDE Community was among the first large, open-source projects that adopted CMake about 15 years ago. Over […]
KDAB on Qt Get the RSS Feed
Posts about Qt, for feeds like planetqt and planetkde
VS Code for Qt Applications – Part 3 A Technical Guide
This 3-part blog series shows in detail how to get up to speed with a Qt project using Visual Studio Code. Part 3 further integrates Qt into VS Code with syntax highlighting, Qt Creator quick switch and more…
Fun and Scary Code from Qt and KDE
These are some really cool or obfuscated code snippets for your amusement. We didn’t want to rate them, so the order doesn’t mean anything at all 🙂 Just to make sure that there’s no misunderstanding: This code really is/was in the Qt or KDE repositories. From Kivio, main.cpp From Qt 2.2.1 (src/canvas/qcanvas.cpp) Writing code that […]
GammaRay 2.11.3 Released! The Last Release in the 2.11 Series
GammaRay 2.11.3 has been released! GammaRay is KDAB’s software introspection tool for Qt applications. Leveraging the QObject introspection mechanism, it allows you to observe and manipulate your application at runtime. This works both locally on your workstation and remotely on an embedded target. Version 2.11.3 will be the last in the 2.11 series. After this […]
KDAB at CppCon 2021 October 24-29th
CppCon is the annual, week-long face-to-face gathering for the entire C++ community – the biggest C++ event in the world. This year, CppCon takes place both Online and at the Gaylord Rockies Hotel and Convention Center in Aurora, Colorado. KDAB is a Registration sponsor, and Ivan Čukić is offering a talk on Wednesday, October 27th […]
Wayland on Windows Run a Wayland Compositor Directly in Your Windows Machine
Qt provides both a Wayland platform to run Qt applications as Wayland clients in a Wayland compositor and a library to build that, but only on Linux. The WSL subsystem makes that possible on Windows.
Auto-Accepting in QSortFilterProxyModel Since Qt 6.0, QSortFilterProxyModel Can Auto-accept Child Rows of Rows Matching the Filter.
In Qt 5.10, we added support for recursive filtering in QSortFilterProxyModel, which means keeping all parents of items matching the filter. One of the comments in the blog post about that feature was “Sometimes, you do not only want to show parents for a match (so the match is visible), you may (also) want to […]
KDAB at QtWS21 Online November 3rd, 2021
KDAB will be Gold sponsors at this year’s free online edition of Qt World Summit on November 3rd, 2021. Our very own Jesper Pedersen will present his talk “Qt Productivity tips – highlights from Qt Widgets and More”. Don’t miss out! Join developers, designers, managers, and executives to get inspired by the latest developments with […]
The cmake-project Script Generating a CMake Project For a Single Executable in C++
If you ever need to create a project around a single C++ file (or just a few C++ files) in CMake, as you might for quick test cases, you might find it tedious to write a CMakeLists.txt file by hand every time. To make this easier, I’ve written a script called cmake-project that you can […]
Fast Duplicate Tracking DuplicateTracker Merged to KDToolBox
In 2019, I optimized QStringList::removeDuplicates() by using std::pmp::unordered_set with a std::pmr::monotonic_buffer_resource, when available. The class that I wrote to encapsulate this optimization has since been re-implemented three times. The latest iteration has recently landed in KDToolBox. If you have code that looks a bit like this: then you should read on.