Dev Loop

Maurice Kalinowski

Optimizing Device Communication with Qt MQTT

Published Wednesday May 16th, 2018
5 Comments on Optimizing Device Communication with Qt MQTT
Posted in Automation, Dev Loop, Embedded | Tags: , ,

Qt for Automation has been launched in conjunction with Qt 5.10 as an AddOn to Qt for Application Development or Qt for Device Creation. One module in that offering is our client-side solution for MQTT called Qt MQTT. Qt MQTT focusses on the client side, helping developers to create sensor devices and or gateways managing […]

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Tuukka Turunen

Code contributions via bug reports and forum posts

Published Wednesday May 16th, 2018
1 Comment on Code contributions via bug reports and forum posts
Posted in Contributors, Dev Loop, Licensing, Open Governance, Qt Project

Contribution of source code is now allowed via Qt systems such as bug reports and forums. Traditionally all source code contributions to the Qt Project are governed via Contribution License Agreement (CLA), except possibility given to the commercial license holders to provide bug fixes and similar small modifications that The Qt Company has pushed into Qt. […]

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Frank Meerkötter

OPC UA support in Qt 5.11

Published Wednesday May 16th, 2018
4 Comments on OPC UA support in Qt 5.11
Posted in Automation, Dev Loop, Embedded | Tags: , ,

OPC UA is a central element of the Industry 4.0 story providing seamless communication between IT and industrial production systems. basysKom has initiated Qt OPC UA in 2015 with the goal of providing an out of the box Qt API for OPC UA. In 2017 basysKom, together with The Qt Company, has finished up a […]

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Tero Kojo

Calling all contributors!

Published Monday May 14th, 2018
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Posted in Uncategorized

One month to go till Qt Contributors’ Summit in Oslo! The dates are June 11-12. If you haven’t yet, now is the time to register! There will be two intense days of discussions and work on the future of Qt. Anyone who has an interest and has in some way had an influence on the […]

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QML and Qt for Python interaction

Published Monday May 14th, 2018
7 Comments on QML and Qt for Python interaction
Posted in Qt for Python

Besides QtWidgets for desktop applications, Qt has another UI technology, QML. Today, I would like to show how QML interacts with Qt for Python, roughly based on the tutorial example declarative/extending/chapter3-bindings. First, let’s have a look at the typical boiler plate code for loading a .qml file. We instantiate a QGuiApplication and a QQuickView. We set […]

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Eirik Aavitsland

Compressed Textures in Qt 5.11

Published Monday May 7th, 2018
8 Comments on Compressed Textures in Qt 5.11
Posted in Embedded, OpenGL, Qt Quick, Qt Quick 2, Uncategorized | Tags: ,

As modern user interfaces become ever more graphics intensive, the demands on graphics memory to hold the textures increase. This is particularly relevant for embedded systems, where resources come at a higher premium, and can be a challenge for system performance. One of the key remedies for this is to reduce the memory requirements of the […]

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