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QI (Quantitive Imaging Systems) – Solving Cancer with Qt 3D

Solving cancer is probably the biggest mystery that we see unravel in our life. This is a complex one because cancer is not a single disease, there are a myriad of aspects that need to be uncovered.

QI (Quantitive Imaging Systems) images biopsies from patients and then labels individual cells with over a hundred biomarkers. This allows us to understand how tumor biology works so we can find druggable targets to stop tumors progressing and metastasizing.

Michel Nederlof, CTO …

KDAB, MyScript and Qt Company to create new, non-distractive input method for the Automotive Industry

KDAB will be partnering with MyScript and The Qt Company to incorporate MyScript’s handwriting input technology into the Qt Automotive Suite. This integration will enable multimodal input capabilities using either the existing Qt Virtual Keyboard or a new handwriting input panel powered by MyScript technology.

KDAB’s Jan Arne Petersen  demonstrated some of the potential of this integration in his “Using Virtual Keyboards on Qt Embedded Devices” presentation at Qt World Summit 2017.

Volker Krause, Director Automotive at …

Profiling QtQuick HMI Performance on Embedded Linux by Thomas McGuire

QtQuick is a popular choice for creating HMIs for embedded devices. The hardware on these devices is often constrained and less performant than their desktop equivalents, this requires extra care from software developers in delivering a fluid user experience. KDAB is regularly involved in improving the performance of QtQuick HMIs on such devices for their customers.

In this demonstration, we will show how to profile and optimize the performance of a QtQuick speedometer, an example taken from an actual embedded …

Qt Automotive Suite video

KDAB’s experience with using Qt in the motor industry has shown us that a specifically tailored automotive Qt solution would be very valuable. So, with our partners The Qt Company and Pelagicore we created the Qt Automotive Suite, a comprehensive solution with a licensing model specifically designed for the automotive industry.

Read a more in-depth view of the Qt Automotive Suite…

GammaRay: Taking a deep look into your Qt application Volker Krause

GammaRay is a high-level runtime introspection tool for Qt applications. In this talk we will look at a number of real-world debugging and profiling problems and how the capabilities provided by GammaRay help you with those.

When creating applications we strive to use higher-level frameworks to obtain results quickly and reduce development effort and long-term maintenance cost. This however provides a few challenges during debugging and profiling. With conventional instruction-level tools we have to have a reasonable deep understanding on …

Multithreading with Qt Giuseppe D’Angelo

This talk introduces you to the fundamentals of threading in Qt. We will discuss how threads, QObjects and events interact together; how a thread affinity of a QObject has a play in signals and slots connections; and how you can leverage the modern C++11 threading capabilities in your Qt application.

Cross-platform thread support was introduced in Qt 2.2, released in 2000, ages before it finally got standardized by C++11. This support has allowed developers using Qt to successfully build countless …

Integrating OpenGL with Qt Quick 2 applications Giuseppe D’Angelo

This talk will introduce you to various effective strategies of drawing raw OpenGL content inside a Qt Quick 2 scene. After a brief introduction to how the Qt Quick 2 renderer works, we will see the APIs in Qt 5.6 that allow us to integrate existing OpenGL code and QML.

One of the foundation pillars of Qt Quick 2 is its OpenGL-based rendering pipeline. By leveraging the GPU capabilities, we get 60 frames-per-second animated scenes, real time eye candy and …

Linux perf for Qt developers Milian Wolff

Are you a Qt developer and do you use Linux as your development platform of choice? Then this talk is for you:

I will introduce you to perf, the Linux tool suite for performance analysis. The talk will not only cover a broad part of what perf has to offer, it will also dive into details in how it is applicable to Qt developers in particular. Afterwards, you will know how to use perf to find CPU hotspots in your

Writing custom Qt Quick components using OpenGL Kevin Funk

Qt Quick and QML provide an easy way to rapidly develop customized, reusable components entirely within QML. As these components grow in complexity, performance and maintainability often suffer, a drawback that is especially noticeable on low-powered embedded and mobile devices. In addition, some specialized components simply cannot be implemented by combining existing Qt Quick items in QML. For these cases, Qt Quick provides access to its underlying OpenGL scene graph via a C++ API. Components created this way are more

Qt 3D Basics Kevin Ottens

Having 3D scenes in your application is becoming a clear trend and is likely to become even more important in the future with the growth of Virtual Reality and Augmented Reality. So far Qt was allowing you to integrate with Open GL fairly easily, but managing the rendering code itself was still a very challenging task.

That’s why Qt 5.7 will provide a new module named Qt 3D. In this talk we will cover the basics of its API. In …

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