13.01.2021 
You know the drill: in C++ you need to #include header files that declare the types and functions from the libraries that you use. Qt is no exception in this regard. Qt follows a very nice convention for its own datatypes: if you need to use a type called QType, then use #include <QType>. This […]
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How to build Qt with the Address Sanitizer on Windows
Some time ago, I wrote about how to build C++ projects with ASAN on Windows. Now, if you happen to deal with Qt projects you may want to take this one step further and sanitize Qt itself. Why bother with a sanitized Qt build? Let’s have a closer look on why having a sanitized Qt […]
Qt and the unu dashboard
KDAB has been working closely together with unu to create the dashboard application for their next-generation of electric scooters. You can find out about these affordable, innovative, urban transport solutions and book a test ride here. unu is now launching the scooters. So in this blog post, we will have a look at some of […]
Dodging disruption with software – how to prevent commoditization
– Matthias Kalle Dalheimer If your company produces physical products, you might think that your most important asset is the in-depth experience acquired in your field, your loyal customer base, or your top-notch manufacturing facilities, not your software. However, over and over again, industry giants in many fields have been toppled by Silicon Valley start-ups […]
How to Build C++ Projects with the Address Sanitizer on Windows memory bug detection via compiler extension
Memory bugs are tricky. Leaks have a clear impact on performance, and quickly become hard to spot when heap allocated objects move too much. Memory access bugs, on the other hand, make your program crash right away, if you’re lucky. In less desirable cases, they may end up corrupting random objects on the heap, and […]
Heaptrack Version 1.2.0 Released Maintenance release of the fast Linux heap memory profiler
We have just released version 1.2.0 of Heaptrack, the fast heap memory profiler for C++/Linux applications. A bit of Background The Heaptrack fast heap memory profiler allows you to track all heap memory allocations at run-time. Afterwards, you can use the accompanying GUI tool to find optimization opportunities in your code by analyzing the recorded […]
Meeting C++ 2020 November 12 - 14
The Schedule, Talks and Speakers are now online for this ever growing ‘partly virtual ‘event for the European C++ community. KDAB is proud to be a Gold sponsor this year. This year’s online conference features eleven talks in one track. On November 14th you can see a talk from KDAB’s Marc Mutz: Partially-Formed Objects […]
Creating Python bindings for Qt libraries
Python is a handy all-purpose language. It can make you very productive within a short time period and has powerful expressiveness for data manipulation and processing. Yet, it’s not a great fit for lots of tasks. C++ is far better at achieving anything that needs bare metal performance, deterministic timing, or low-level access. Thankfully, some […]
How to declare a qHash overload
Today’s blog post is about something that should be simple and apparently it causes trouble: how to declare a qHash overload for a custom datatype. This is necessary when we want to use custom datatypes as keys in a QHash. From the documentation: A QHash’s key type has additional requirements other than being an assignable […]
VS Code for Qt Applications – Part 2 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 2 shows how to get a complete setup for qmake and CMake projects, with a deeper look at the Qt side.