Qt

Laszlo Agocs

Building the latest greatest for Android AArch64 (with Vulkan teaser)

Published Friday February 24th, 2017 | Comments Off on Building the latest greatest for Android AArch64 (with Vulkan teaser)
Posted in Android, C++, Dev Loop, Graphics, Mobile, OpenGL, QPA, Qt

Let’s say you got a 64-bit ARM device running Android. For instance, the Tegra X1-based NVIDIA Shield TV. Now, let’s say you are also interested in the latest greatest content from the dev branch, for example to try out some upcoming Vulkan enablers from here and here, and want to see all this running on […]

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Tuukka Turunen

Qt 5.5.1-2 for Wind River® VxWorks® Real-Time Operating System Released

Published Tuesday February 14th, 2017 | Comments Off on Qt 5.5.1-2 for Wind River® VxWorks® Real-Time Operating System Released
Posted in Dev Loop, Releases, RTOS

The Qt 5.5.1-2 release for VxWorks Real-Time Operating System (RTOS) release supports the new VxWorks 7 release SR 0480 (September 2016) on ARM-v7 with updates in the Qt Base, Qt Declarative and Qt Quick Controls modules. For full list of changes, please see the change log. To learn more about Qt 5.5 for VxWorks, please check […]

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Jake Petroules

What’s New in Qt on Apple Platforms

Published Monday January 30th, 2017 | 3 Comments on What’s New in Qt on Apple Platforms
Posted in Build system, Dev Loop, iOS, macOS, Qt

Note that throughout this blog post, the term “Apple Platforms” will be used to refer to all four Apple operating systems (macOS, iOS, tvOS, and watchOS) as a whole. I thought it would be a good time to share some of the highlights of what’s new in Qt on Apple Platforms with the recent release of Qt 5.8. […]

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Karsten Heimrich

Qt Visual Studio Tools Insights

Published Friday January 27th, 2017 | 6 Comments on Qt Visual Studio Tools Insights
Posted in Dev Loop, integration, Labs, Qt, Random, Releases, Uncategorized, upgrading, Visual Studio, Windows

While working on the Qt Visual Studio tools, I had to think about how to locally perform and test the update process for extensions. As already known to most Visual Studio users, the IDE provides a way to setup your own private extension gallery. To do so, one has to open the Visual Studio Tools | […]

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Laszlo Agocs

OpenGL Core Profile Context support in QPainter

Published Friday January 27th, 2017 | 2 Comments on OpenGL Core Profile Context support in QPainter
Posted in C++, desktop, Dev Loop, Graphics, macOS, OpenGL, Painting, Qt, UI, Windows

As many of you may know, QPainter has a multi-backend architecture and has two main paint engine implementations under the hood in Qt 5: the raster paint engine and the OpenGL2 paint engine, designed for OpenGL ES 2.0. The GL Paint Engine While in many ways the raster paint engine can be considered one of […]

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Jesús Fernández

Connecting your Qt application with Google Services using OAuth 2.0

Published Wednesday January 25th, 2017 | 13 Comments on Connecting your Qt application with Google Services using OAuth 2.0
Posted in C++, Cloud, Dev Loop, Internet, Internet of Things, Network, Qt, Releases, Tutorial | Tags:

With the Qt 5.8 release, we have added QtNetworkAuth as a Technology Preview module. It is focused on helping developers with this auth******** madness. Currently, it supports OAuth1 and OAuth2. In the future, it will feature more authorization methods. This post is a first glance of the OAuth2 support in Qt, it covers how to use Google to authorize an application. Your application […]

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Frederik Gladhorn

Qt Speech (Text to Speech) is here

Published Friday January 20th, 2017 | 14 Comments on Qt Speech (Text to Speech) is here
Posted in Accessibility, Dev Loop, News, Qt, Releases | Tags:

I’m happy that with Qt 5.8.0 we’ll have Qt Speech added as a new tech preview module. It took a while to get it in shape since the poor thing sometimes did not get the attention it deserved. We had trouble with some Android builds before that backend received proper care. Luckily there’s always the […]

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Eskil Abrahamsen Blomfeldt

How to shoot yourself in the foot using only a scene graph (neat optimization trick inside)

Published Thursday January 19th, 2017 | 9 Comments on How to shoot yourself in the foot using only a scene graph (neat optimization trick inside)
Posted in Declarative UI, Dev Loop, Graphics, OpenGL, Performance, Qt, Qt Quick 2, Text and font handling, UI

I am trying to get into the habit of blogging more often, also about topics that may not warrant a white paper worth of text, but that may be interesting to some of you. For those of you who don’t know me, I am the maintainer of the text and font code in Qt, and recently I came across a curious customer case where the optimization mechanisms in the Qt Quick scene graph ended up doing more harm than good. I thought I would share the case with you, along with the work-around I ended up giving to the customer.

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