Qt World Summit and KDAB Training Day 2025

Learn about C++ and Rust Interoperability

CXX-Qt is key for achieving seamless interoperability between C++ and Rust, and KDAB is at the forefront of its development and application. Make sure to check out the presentation “Rust Code in Qt Applications: Challenges and Solutions” by KDAB experts Leon Matthes & Andrew Hayzen on May 6th, 15.30-16:15.

Presentation abstract:
"Qt developers wanting to use Rust in their applications face unique challenges due to Qt’s extensive meta-object system. In this talk, we will explain the Qt-specific challenges to Rust interoperability and how they can be overcome. It will include an overview of the available approaches and a brief introduction to CXX-Qt."

Valuable Qt Insights

“Qt and the assistance of KDAB has been instrumental in powering PAM (Plant Asset Manager) - Siemens Energy’s in-house software tool to manage and organize the engineering data for all electrical Equipment, Communication Signals and Software Parameters of an HVDC projects.”

Learn more in the Customer Case presentation: ”Making the Energy Flow - The Journey Towards a Qt Engineering Platform presented" by Dacian Messthaler (Software Architect Siemens Energy) and Till Adam (CCO KDAB) on May 7th, 10:10 - 10:30.

Finally, discover the power of GammaRay, the open-source visual debugger for Qt applications, at the presentation "GammaRay: A Visual Debugger for Qt Applications" by KDAB's Giuseppe D'Angelo on May 6th, 17:30 - 18:00.

"GammaRay is an open-source "high-level debugger" for Qt. It is able to show the status of various Qt subsystems inside an application, with an easy-to-use interface. GammaRay can, amongst other things, show the properties of any QObject in the application, inspect and debug widgets and QML/Qt Quick applications, analyze painting, visualize state machines, and much more. This short talk introduces the audience to the basics of GammaRay usage."

Talk to KDAB Experts!

At the demo area, you will find the KDAB booth and a team of expert engineers. Talk to us and explore demos featuring Qt, C++, and CXX-Qt.

CXX-Qt - Safe Rust Bindings for Qt

KDAB supports and maintains CXX-Qt. A set of Rust crates for creating bidirectional Rust ⇄ C++ bindings with Qt. It can be used to integrate Rust into C++ applications using CMake or used to build Rust applications with Cargo. Watch our YouTube series "Mixing C++ and Rust" to learn more.

• Enables Rust and C++ ecosystems to be used in the same application
• Allows for idiomatic Rust and C++ code
• Integrates easily into existing applications

Servo WebView for Qt

KDAB has built a demo of using CXX-Qt to expose a web rendering engine written in Rust as a component to Qt.

• Uses CXX-Qt to bridge between Qt and Servo
• User interface built with Qt and QML
• Servo renders safely in Rust

LUMA Vision VERAFEYE - Medical tool for interventional cardiac imaging

LUMA Vision and KDAB developed a fully software-defined, end-to-end imaging system that could adapt to market and clinical needs.

• Uses Qt3D/Vulkan for visualisation of ultrasound data
• Uses QML for 2D user interface
• CUDA-based 3D data processing

Have a look at this showcase video to learn more.

Developer Tools for Qt, C++, and Linux

A selection of useful Performance Optimization Tools

• GammaRay: High-level introspection tool for Qt applications
• KDDockWidgets: KDAB's Dock Widget Framework for Qt
• Clazy Static Code Analyzer: LLVM/Clang-based static analyzer for Qt
• Hotspot Profiler: GUI for Linux Perf to analyze profiling data
• Heaptrack: Heap memory profiler and analysis GUI for Linux

Improve your programming skills with KDAB!

The KDAB Training Day 2025 will take place in Munich on the 8th of May, right after the Qt World Summit. Choosing a compact, informative, one-day course lets you experience the quality and effectiveness of KDAB’s usual training offerings.

Courses available at the KDAB Training Day 2025:

Contact KDAB

If you want to find out more or ask about your project, we look forward to hearing from you: info@kdab.com. To read more about KDAB services, visit our website.