Trolltech Releases Qt 3.1 Beta 1
Sep 12, 2002, 01:00 (6 Talkback[s])
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Trolltech today announced the release of Qt 3.1 beta 1. This new
version is particularly noteworthy because it gives developers and
corporate IT professionals--for the first time--a way to gradually
migrate from the limited world of Motif and MFC over to the
single-source, multiplatform nirvana of Qt.
Qt, the standard C++ application framework for multiplatform
development, lets developers write a single source-tree that will
run--natively--on Windows, Linux/Unix, Mac OS X, and embedded
"Developers have loved Qt for years because it lets them write
code once and deploy it anywhere," said Eirik Aavitsland, Qt's
product manager. "With version 3.1, more developers have the
opportunity to fall in love with Qt, since we now give them a way
to migrate code gradually from single-platform environments to the
multiplatform world of Qt."
Among the functions included in Qt 3.1 is Trolltech's new
ActiveQt, a framework that lets developers use Qt to create ActiveX
controls (for example, Internet Explorer plug-ins), and use Qt
applications as ActiveX servers (for example, an Excel spreadsheet
window). ActiveQt offers a clean, simple Qt application programming
interface (API) to replace the notoriously complex native ActiveX
and COM APIs. The result is enhanced productivity, with great
reductions in the time necessary to create ActiveX servers and
Qt 3.1 for Unix and Linux also includes new facilities for Motif
integration, enabling developers to gradually insert Qt-based code
into existing Motif applications, rather than rewriting the entire
code-base at the same time. This provides a smooth and elegant
migration path to Qt by allowing Qt and Motif components to
co-exist in the same application.
The Mac OS X version of Qt 3.1 introduces many improvements to
further integrate Qt with the Mac OS X environment. These include
integration with the Mac Appearance Manager, anti-aliased text
drawing, and user settings. The Qt OpenGL support is also greatly
improved, and uses the hardware-accelerated drivers.
Other benefits of Qt 3.1 include:
- Easier graphical user interface (GUI) design, with numerous
improvements to Qt Designer, the GUI builder for Qt. These include
a property editor that can operate on multiple widgets
simultaneously, greatly enhanced WYSIWYG support, and a toolbar
layout that is more intuitive.
- Enhanced documentation assistance. Qt Assistant, the Qt help
documentation browser, now includes custom documentation supports,
making it easier to use as a help browser for customer
- Improved multi-threading. Qt 3.1 offers more classes available
for multi-threading, thereby optimizing performance.
- Class library assistance. Qt 3.1 will include hundreds of
improvements to its existing class library, inspired by user
Qt 3.1 beta 1 is free of charge to open-source developers.
Contact firstname.lastname@example.org for
conditions, prices and license terms for commercial use of Qt 3.1
or any other Trolltech product.