Santa Claus is coming to ... wait a minute, it's not Christmas yet! Status update: The patch was merged into master branch on Mar 6th, therefore it will be part of QtCreator 4.10(5.0?) not 4.9! I have the pleasure to let you know that KDAB has contributed to Qt with yet another super cool project! […]

KDAB announces the release of Kuesa™, a solution that provides an integrated and unified workflow for designers and developers to create, optimize and integrate real time 3D content in a 3D or hybrid 2D/3D software user interface. Kuesa provides an easy, integrated and unified workflow without any compromises for designers and developers giving: great performance […]

I'd like to talk about a common problem that we have seen come up in several projects, namely how to plot large datasets over time in an efficient manner using Qt. This seems to be a general issue, especially in embedded situations and is affecting many people. Because of this, I thought we'd share one […]

This year's North American stop on the Qt World Summit world tour was in Boston, held during the Red Sox’s World Series win. Most of us were glad to be flying home before celebration parades closed the streets! The Qt community has reason to celebrate too, as there’s an unprecedented level of adoption and support […]

KDAB is proud to announce that for the first time ever we will be present at Embedded Technology outside of Tokyo in Japan. Every year more than 25000 visitors attend over 3 days! The event takes place in the Pacifico Yokohama exhibition center and focuses on Embedded AI, IoT Wireless Technology, Smart Sensing and Safety […]

In the last episode of this series we discussed QAbstractItemModel::checkIndex(). QAbstractItemModel::checkIndex() is a function added in Qt 5.11 that allows developers of model classes to perform some validity checks on the QModelIndex objects passed to the model; specifically, on the indices passed to the APIs that model classes need to implement (rowCount(), columnCount(), data, setData(), […]

Clazy 1.4 has been released and brings 10 new checks. Clazy is a clang compiler plugin which emits warnings related to Qt best practices. We'll be showing Clazy at Qt World Summit in Boston, Oct 29-30, where we are a main Sponsor. You can read more about it in our previous blog posts: How to […]

The Linux Foundation holds its Open Source Summit + Embedded Linux Conference Europe in Edinburgh, October 22 - 24, 2018 In spite of the clumsy name, this is an event you won't want to miss! KDAB's Christoph Sterz will be presenting a talk on Tuesday, October 23 • 15:50 - 16:30: Extending the Performance Analysis […]

QtQuick includes basic visual item to construct many common user-interface components, but people often ask how to create different visual appearances, beyond rectangles, round-rectangles and images. There’s various solutions to this problem, and with Qt 5.10, there’s the new Shapes module which makes it easy to define paths, ellipses and other standard SVG drawing elements. […]

This is the latest release of our powerful open-source Qt component, KD Chart, that allows you to create business charts and much more. Release Highlights Builds with modern Qt versions, at least up to Qt 5.10 Improves tooltip handling Fixes horizontal bar chart Uses @rpath for OSX dynamic libraries Fixes build on Qt4/ARM KD Chart […]

We have released version 2.9.1 of our Qt application introspection tool GammaRay. Besides important improvements for use in Android APK bundles this release fixes a number of corner cases in the Qt Quick remote view, including crashes and corrupt view content when encountering certain non-integer high DPI scaling factors. Problems with activating the Qt 3D […]

For SIGGRAPH, KDAB has been working on a new Qt 3D based demo. We decided that instead of using C++, it would be interesting to try out PySide2 and harness Python to drive the application. The idea behind this demo is to do with data acquisition of a vehicle's surrounding environment. Once the data is […]

At KDAB, we know that consistency is an important aspect of the User Experience - users don’t want to have to learn different ways to achieve the same thing. In the Linux world, there is a major structural pitfall to this: the applications written for Linux come in at least two major technologies - Qt […]

Thanks for joining us for this year's edition of Meet Qt that took place in Paris on the 19th June. The focus this year was medical and automotive and the event was again very successful despite the train strikes. If you could not attend here is an idea of what KDAB offered: A medical client's […]

With all the advances being made in Qt 3D, we wanted to create some new examples showing some of what it can do. To get us started, we decided to use an existing learning framework, so we followed the open source Tower Defence course, which you can find at CGCookie. Being a game, it allows […]

There has been a lot of back and forth around the use of Free Software in public administration. One of the latest initiatives in this area was started by the Free Software Foundation Europe, FSFE. It focuses on the slogan: Public Money - Public Code. There are various usage scenarios for Free Software in public […]

After more than a year of work, I'm pleased to release another version of heaptrack, the Linux memory profiler! The new version 1.1.0 comes with some new features, significant performance improvements and - most importantly - much improved stability and correctness. If you have tried version v1.0 in the past and encountered problems, update to […]

KDAB is proud to be bronze sponsor at Italian C++ Conference, the largest conference in Italy specifically focused on C++ development for professionals, students and businesses using C++. It's free, organized by the Italian C++ community, and there's Italian icecream to think about too... It's an offer you can't refuse ;) Sign up and see […]

The Qt model/view APIs are used throughout Qt -- in Qt Widgets, in Qt Quick, as well as in other non-GUI code. As I tell my students when I deliver Qt trainings: mastering the usage of model/view classes and functions is mandatory knowledge, any non-trivial Qt application is going to be data-driven, with the data […]

Some months ago Shawn Rutledge blogged about the new QtPdf module, a Qt wrapper around the PDFium library, which allows you to render PDF documents to QImages. Since that blog post we have invested some more work into the module to make it more useful in your day-to-day projects. One long-standing bug report against Qt […]