Qt 4

Today’s blogger and presenter of Qt 4.8.3 is Tuukka Turunen, Director Qt R&D at Digia. Most of the activities have lately been around Qt 5, but rest assured – Qt 4.8 is still very much alive as well! I am extremely pleased to announce that we have released 4.8.3 today together with the Qt Project. [...]

This prerelease of Qt Creator 2.6 gives you a an early impression of the many new features and the bigger changes that we will introduce with this release. And of course it is your chance to give us last feedback and help us find bugs and problems Let’s start with the most apparent change: We replaced [...]

It’s been now some days since we released the Qt 5 beta, and thus it is time to look ahead to what’s going to happen in the next few months and the plans for the Qt 5.0.0 final version release. Moving to Digia The first important thing is that the planned transfer of Qt from [...]

So, we have the Qt 5 beta out! The next steps now are to polish it to make the Qt 5.0.0 release as impressive as possible. One big, pending task we’ve identified is making sure the class reference documentation is consistent with the changes we’ve made in Qt 5. Since this was originally written when [...]

The Qt 5 Beta is now available as the first major release under the new Qt Project umbrella. A big thank you goes out to all who contributed to this milestone. With this Qt 5 beta release, I would also like to invite everybody interested to go, try, and experience this next major version of [...]

One of the shortcomings of the Qt Quick API is that despite having a dedicated rendering thread, our animations are always running on the GUI thread. Running animations outside the application’s main thread has the advantage that it greatly reduces ... [More] jerkyness as operations that block the main thread will not hinder the animations from running. [...] [Less]

For robustness and security reasons, it often makes sense to split functionality into various smaller binaries (daemons) rather than having a few big and monolithic applications. Qt 4 introduced modularized Qt libraries in order to enable Qt based ... [More] daemons that don’t require any GUI. Thanks to the strong embedded focus and several sane architecture decisions, [...] [Less]

Qt Creator 2.5.2 contains only a single bugfix that is important to all Windows (7) users: Fixed resource leak leading to regular crashes on Windows (QTCREATORBUG-7385) So, if you are a Windows user of Qt Creator, I advise you to quickly go to our download page to get the new version. Everyone else can safely [...]

One of the comments in Morten’s blog post about desktop components in QML 2 was that the text looks out of place on Windows. This is because QML 2 uses a custom rendering mechanism called “distance fields” for the text which allows hardware accelerated drawing of transformable text. Yoann blogged about this a year back. [...]

Both the public documentation for the scene graph and some of my previous posts on the subject have spoken of a backend or adaptation API which makes it possible to adapt the scene graph to various hardware. This is an undocumented plugin API which will remain undocumented, but I try to go through it here, [...]