Right from the start, we at KDAB have had lots of fun playing a leading role – and as the Qt experts, we look forward to continuing to contribute to the growing Qt community. As a toast to the next 20 years of fun and success, we are combining the company meeting, this year here […]

Update: Here you have also the Chinese version, thanks goes to Foruok. In the last Qt on Android episode we learned the basics of JNI on Android in a Qt way. In this episode I'd like to focus on tools that will help us to be more productive when we extend our Qt on Android […]

Trading communication market leader IPC created revolutionary dealer boards by using the Qt software library Stock exchanges are some of the most stressful working environments where shares worth millions of Euros/Dollars are traded within milliseconds. Naturally, brokers and stock traders rely on state-of-the-art communications and trading systems to ensure constant availability and reliability of information […]

It has been very quiet around WEC platform support in Qt, and you would have been forgiven for thinking that nothing was happening. But behind the scenes, we have been tackling some pretty hard issues. We just did not blog about the ongoing work……until now. Be assured that the platform is still maintained and there […]

Recorded at the Qt Developer Days in Berlin in 2014. Abstract: It is easy to be enthusiastic about the technical merits of Qt. For those having to make technology choice decisions that impact the business for potentially a long time, that is not the only dimension, however. Risks need to be examined and trade-offs identified, […]

Using the QML engine and QtQuick scenegraph to introspect and analyze performance. Abstract: A fluid and performant user interface in QtQuick applications is an important factor, especially considering that users increasingly demand an "iPhone-like" experience, while at same time, applications often run on a resource-constrained embedded system. What can be done when a QtQuick application […]

JamesTurner and Giuseppe D’Angelo introducing Qt3D 2.0 Abstract: Qt3D 1.0 was created during the Qt4 life-cycle, and has been deprecated since the release of Qt5. Additionally, the API design featured some limitations which restricted the potential use-cases; injecting large amounts of dynamic data into the scene, configuring advanced multi-pass / deferred renderers, and using multiple […]

Kevin Krammer compares QtWidgets and QtQuick Controls. Abstract: QtWidgets has been one of Qt's selling points throughout its two decade long existence. Its ability to blend into the target platform's look&feel with little or no effort on the part of application developers is unparalleled. The advent of powerful mobile and embedded devices, and later touch […]

Abstract: The new QtWebChannel module is a ready-to-use solution to make any QObject accessible to arbitrary JavaScript clients. KDAB already uses it in production for a client project on embedded devices, where it proofed to be an essential part for the HTML app framework embedded in a QML chrome. Thanks to QObject introspection, any object […]

Abstract: This presentation will start by explaining the concept of inqlude.org and showing some of the libraries available there, pointing in particular to those that will be useful in the rest of the presentation. The multiple ways to use inqlude.org will be discussed: browsing the website and downloading sources, using the command-line tool to install […]

Abstract: Moc's job is two-fold: it generates the qt_metacall() member function that dispatches incoming calls to slots and implements reading and writing of properties, and it generates the QMetaObject containing information about what signals, slots and properties are available, providing runtime introspection capabilities. All of this is fixed at compile time though, a limitation that […]

Abstract: With the launch of the Qt Project in 2011 it has been made possible for everyone, individual or organization, to directly submit patches to the Qt codebase. Whether it's a small fix to the documentation, an improvement to existing code, or even a brand new module altogether, the procedure is the same. The presentation […]

Abstract: It is easier and easier to create a proper QtQuick application from scratch. But is it really that simple to bring existing code in the QtQuick structure? It can get especially challenging for a large project which collected C++ collected over more than 15 years. What can we do of all that code? Temptation […]

QML is the language that makes writing Qt application UIs easier than ever before. QmlWeb now brings this ease to the web. Traditionally desktop applications were written in languages like C or C++. Web technologies like HTML and PHP were mainly used to write static websites. With the rise of modern web applications and technologies […]

Qt on Android Tutorial (please adjust volume / low sound): Abstract: The tutorial will start with instructions on how to setup the development environment, how to configure QtCreator and ensuring that all dependencies are met. It will then continue with a live demonstration on creating an app, deploying it to an Android device and debugging […]

http://www.kdab.com/wp-content/uploads/stories/photon_migration.mp4 The Photon to Qt migration framework helps you control the complexity and cost of the migration project. The framework consists of the following parts: a partial implementation of the Photon API in Qt, covering the most important use cases a library of Qt widgets as slot-in replacements for Photon widgets that do not exist […]

We are proud to announce that KDAB is now a contributor member of the Khronos Group, a not for profit, member-funded consortium focused on the creation of royalty-free open standards for parallel computing, graphics and dynamic media on a wide variety of platforms and devices. As a contributor member of the Khronos Group, KDAB is […]

For the last 3 years, we in KDAB have received overwhelmingly positive feedback for organising and running Qt Developer Days in Europe. Now we would like to say thank you to all of you for your participation and positive feedback with regard to our arrangements of everything from great technical content and discussions to evening […]

Last week I visited a new customer who is making medical and industrial devices which have one thing in common: image and video capturing, and letting the user save these files onto a USB key. These devices run embedded Linux and the application is done in Qt (and gstreamer for the video capture). The new […]

Continuing our blog post series about the rewrite of Qt3D. One of the biggest driving factors behind the design of Qt3D 2.0 is the ability to configure the renderer in order to accommodate custom rendering techniques. In this blog post I will explain how to render a scene in Qt3D with shadows. The complete working […]