Nokia releases Qt 4.7 cross-platform application and UI framework

Nokia’s new release of Qt 4.7 is the company’s latest version of its cross-platform application and UI framework.

New to the smorgasbord from this Norwegian headquartered arm of Nokia is a new feature in the shape of QML (Qt Meta-Object-Language), which is described as an easy to learn declarative language that ‘describes’ the interface of a program and how it behaves.


Nokia says that Qt will now be “instantly familiar” to developers who prefer scripting type languages such as JavaScript — and it allows UI designers and developers to work together in an iterative approach.

The company notes that this new release features improved performance that make applications and user interfaces run faster and smoother such as new hardware accelerated compositing in the QtWebKit open source web browser engine – this, apparently, results in faster animation rendering by 31% over Qt 4.6.0, resulting in ‘snappier’ user interfaces.

“In benchmark tests of popular websites, Facebook pages scrolled up to 67% faster, and other, less complicated pages scrolled on average 350% faster due to significant scrolling speed improvements in QtWebKit,” said the company’s news statement.

Also new for developers with this release:

  • The new QStaticText class makes text render more than twice as fast as in Qt 4.6.0
  • The QPainter engine makes it possible to draw particle systems more efficiently in OpenGL

An updated Qt SDK is now available for download containing Qt 4.7 and Qt Creator 2.0.1 – if you are interested in Qt then I will be blogging from the company’s Qt Developer Days conference in Munich (11-13 October).


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