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Topic: Qt (toolkit)


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In the News (Sun 27 Dec 09)

  
  Qt toolkit
Qt now exists in a number of flavours, for various platforms, and these are licensed under various licences.
Based on the Qt Toolkit, which was then under the Q Public License (QPL), many people in the open source and free software movements were worried that an essential piece of one of their major operating systems would be under commercial control.
Qt 2.2 was released on September 6, 2000, KDE 2.0 followed on October 23, 2000.
www.ebroadcast.com.au /lookup/encyclopedia/qt/Qt_toolkit.html   (336 words)

  
 Qt Toolkit - openSUSE
Qt 4 is dual-licensed under GPL and proprietary licenses on all supported platforms including Windows (while Qt/Windows 3.3 is only released under a proprietary license).
As KDE was based on Qt, many people in the open source and free software movements were worried that an essential piece of one of their major operating systems would be under commercial control.
This gave rise to two efforts: the Harmony toolkit which sought to duplicate the Qt Toolkit under a free software license and the GNOME desktop that was meant to supplant KDE entirely.
en.opensuse.org /Qt   (1137 words)

  
 K Desktop Environment - History: The Qt Issue
Qt is available for free in source code form for free software development and can be freely distributed.
Another point often brought forth against Qt is that Qt doesn't have a certain feature X, say pluggable styles, and that since one is not allowed to distribute modified copies of Qt we won't get that feature X. The fact is that Troll Tech has put all its resources behind the development of Qt.
Qt is being constantly developed and improves at a speed unmatched by any GPL toolkit.
www.kde.org /whatiskde/qt.php   (1587 words)

  
 Qt (toolkit) - Wikipedia, the free encyclopedia
In computer programming, Qt is a cross-platform application development framework, widely used for the development of GUI programs, and, since the release of Qt 4, also used for developing non-GUI programs such as console tools and servers.
Qt is most notably used in KDE, the web browser Opera, Qtopia and OPIE.
As KDE was based on Qt, many people in the open source and free software movements were worried that an essential piece of one of their major operating systems would be proprietary.
en.wikipedia.org /wiki/Qt_(toolkit)   (1469 words)

  
 QT GUI Toolkit
The Qt toolkit is a multi-platform C++ GUI toolkit (class library) that has been developed over a 4 year period.
Qt is an emulating GUI toolkit which allows programmers a choice between the Motif and the Windows look and feel.
Where to Find Qt The Qt source and binary versions for several platforms (including Linux of course) can be downloaded from the net at ftp://ftp.troll.no/qt/.
www.linuxjournal.com /node/201/print   (4857 words)

  
 Qt Toolkit - QWidget Class
In Qt, QMainWindow and the various subclasses of QDialog are the most common top-level windows.
The widget name is little used by programmers but is quite useful with GUI builders such as the Qt Designer (you can name a widget in the builder, and connect() to it by name in your code).
In particular, Qt grabs the mouse when a button is pressed and keeps it until the last button is released.
handhelds.org /~zecke/apidocs/qt/qwidget.html   (8428 words)

  
 Qt Toolkit Support Likely to be Dropped from Mozilla - MozillaZine Talkback
The idea is to use the QT toolkit instead of the GTK one (that's the one the mozilla.org Linux nightlies use).
But seawood's patch to remove QT has not been approved for 1.3 and Asa remarked that resolving the situation- either removing QT or fixing it- doesn't have to happen in the 1.3 timeframe.
That is what people have feared all along- that the decision to drop the QT code would be lamented and a bunch of people would try to get it to a state where it could be included in the tree but not really be interested in maintaining it, thus increasing overall breakage.
www.mozillazine.org /talkback.html?article=2893   (1012 words)

  
 Qt Toolkit - Qt GUI Designer
The Qt Designer is a visual design tool that makes designing and implementing user interfaces a lot easier.
Qt Designer uses a generic and very powerful property editor for most widget properties.
Qt Designer is a visual dialog designer, not an integrated development environment.
www.extreme.indiana.edu /~chiuk/qt/designer.html   (435 words)

  
 Qt#
Qt# - A cross-platform GUI toolkit for Mono and Portable.Net [1] is a set of classes that bind any CIL language to the Qt toolkit.
The Qt# library can be generated with Mono or Pnet and can be compiled and run with both Mono and Portable.NET.
Qt# is free software, licensed under the terms of the GNU GPL.
qtcsharp.sourceforge.net   (230 words)

  
 Integrated Computer Solutions Incorporated - QT Home Page
Qt is a comprehensive C++ application framework from Trolltech that includes a class-library and tools for cross-platform development and internationalization.
ICS is the premier supplier of Qt extensions, testing tools, and migration services to help you get the maximum benefits from this exciting toolkit.
The book is written for Qt 3 and 4 and is targeted at Qt developers who have made it beyond the first steps and want to use Qt productively.
www.ics.com /products/qt/index.html   (292 words)

  
 Widget toolkit - Wikipedia, the free encyclopedia
Widget toolkits must have a means to position the widgets in their containers.
The simplest way to define their positions is by defining their absolute (on the screen) or relative (to the parent) position in pixels or common distance units, but it is also often possible to layout the widgets by their relative positions without using distance units (see layout manager).
The Standard Widget Toolkit is a native widget toolkit for Java that was invented as part of the Eclipse project.
en.wikipedia.org /wiki/Widget_toolkit   (1347 words)

  
 Dead Toolkits - Mono
They picked the SWT toolkit which is part of Eclipse and ported it from Java to C#.
This is a binding to the Qt toolkit.
Toolkit is licensed under the GPL, and the Qt substrate has further licensing limitations.
www.mono-project.com /Dead_Toolkits   (207 words)

  
 Qt and PyQt
Qt and PyQt are quite fast; the design of Qt and PyQt is thoroughly object-oriented; Qt comes with a much larger collection of well-designed widgets than does Tk.
On the downside, Qt has a more restricted license than many toolkits (at least on non-Linux platforms); it is often tricky to get Qt and PyQt installed correctly; as well, Qt is a quite large library.
Anygui is actually not a GUI toolkit, but an abstract wrapper around a large number of toolkits (even surprising ones like curses and Java/Jython Swing).
www-106.ibm.com /developerworks/linux/library/l-qt   (1914 words)

  
 Daemon News '200305' : '"Programming With Qt "'
Qt is a complete cross-platform GUI application framework.
Qt is also at the heart of the popular KDE desktop environment.
Qt comes with a variety of tools to ease the job of writing applications.
ezine.daemonnews.org /200305/qt.html   (1749 words)

  
 Code Less - Create More — Trolltech
Qt QuickStart is a free seminar giving you an introduction to Qt.
Qt sets the standard for high-performance, cross-platform application development.
In the webinar and video section you will find abstracts and details for the Qt Webinars currently available for viewing – both live and archived webinars are presented here.
www.troll.no   (269 words)

  
 Qt Toolkit - QImageIO Class
GIF support may be removed completely in a future version of Qt.
Although all image formats supported by Qt ignore the parameters string, it will be useful for future extensions or contributions (like JPEG).
This file is part of the Qt toolkit, copyright © 1995-2000 Trolltech, all rights reserved.
www.cs.queensu.ca /~dalamb/qt/local/qimageio.html   (906 words)

  
 Qt 3.2 released
Qt Designer now has a visual menu editor, and enhanced support for adding complex, custom container widgets (such as custom tab widgets).
Qt supports creating applications that run natively on Windows, Linux/Unix, and Mac OS X -- from a single codebase.
Qt is released under two licenses: a Commercial License, for building commercial software, including software that is not sold but that advances the business goals of a commercial enterprise; and a Free License, for building freely distributed, noncommercial software for Unix/Linux.
www.linuxdevices.com /news/NS8313026883.html   (578 words)

  
 Rapid Dialog Design with the Qt C++ GUI Toolkit > Getting Qt   (Site not responding. Last check: 2007-10-14)
Getting Qt Qt is a C++ class library and a set of tools for developing multiplatform GUI applications using a "write once, compile anywhere" approach.
Qt lets C++ programmers use a single source tree for applications that will run on Windows from 95 to XP, Mac OS X, UNIX/Linux, and embedded Linux.
Qt is also widely used for single-platform development because of its intuitive and powerful object-oriented API.
www.informit.com /articles/article.asp?p=173413   (384 words)

  
 Qt Toolkit - Installing Qt/X11
You may need to be root, depending on the permissions of the directories where you choose to install Qt.
The rest of this file assumes that Qt is installed in /usr/local/qt.
This is not needed, when all fonts are accessed through local font directories or a local font server, as Qt will automatically scan the fontpath and the font servers configuration file.
www.mathematik.uni-ulm.de /help/qt-2.3.1/install-x11.html   (477 words)

  
 freshmeat.net: Tutorials - Benefits of the Qt Object Model
I do not want do bash the Qt System, since when it was developed, the mechanisms used by libsig++ (heavy template use and so on) where not commonplace in compilers and Qt focuses on cross-platform development.
Actually the problem was that Trolltech released a "free" qt under the QPL license, which was more or less compatible with the GPL, except that it didn't guarrantee that the license wouldn't be revoked or changed in the future.
The relicensing of QT under the GPL was a good move, as it allowed a truly free environment o be created, but it preserved the ability of Trolltech to still sell their toolkit to developers who were developing proprietary software.
freshmeat.net /articles/view/840   (4136 words)

  
 The Qt Toolkit - Andamooka Reader   (Site not responding. Last check: 2007-10-14)
The Qt toolkit is a collection of classes that simplify the creation of programs.
Another good feature of Qt is that you can recompile your code for different desktops (X Window, MS Windows).
However, one of the restrictions is that you stick to Qt widgets.
www.andamooka.org /reader.pl?pgid=kde20develch03   (365 words)

  
 freshmeat.net: Category Reviews - GUI Toolkits for The X Window System
All toolkits will mainly be examined in terms of maturity (which means stability), popularity (which popular applications/how many applications use this toolkit?), accessibility and internationalization support, portability, language bindings, extensibility, licensing conditions, and documentation.
The problem with Qt is that it was written with early C++ compilers in mind which didn't offer the capabilities Trolltech needed for their GUI toolkit, and today, one has to work with the slack.
Qt is nice for very rapid prototyping of applications, and having the amount of framework they include and require is nice for most (but not all) applications.
freshmeat.net /articles/view/928   (13296 words)

  
 Qt Toolkit - QDataStream Class   (Site not responding. Last check: 2007-10-14)
For a complete description of all Qt types supporting data streaming see Format of the QDataStream operators.
If you want to read data that was created by an earlier version of Qt, or write data that can be read by a program that was compiled with an earlier version of Qt, use this function to modify the serialization format of QDataStream.
In Qt 2.1, this number is by default 3.
www.extreme.indiana.edu /~chiuk/qt/qdatastream.html   (1423 words)

  
 PHP-Qt - the Qt extension for php
It provides an object-oriented interface to the Qt4 Framework and allows to write Qt applications in the PHP language.
The first 6 tutorials from Qt documentation are working and we can see how it grows.
Qt itself is under the GPL license, people writing closed source commercial software using Qt and php-qt bindings need a commercial license if they are not prepared to open source license their own code.
www.php-qt.org   (274 words)

  
 Dr. Dobb's | Embedded Development With QT/Embedded | April 12, 2002
If you look at the source code, you find that we create lots of "widgets" (Qt's term for user-interface components, equivalent to "components" in the Java AWT or "controls" in Windows lingo) on the heap, but that there is not even a destructor where we would delete them.
Qt's solution is much more memory efficient than garbage collection as used by Java — the child widgets are only kept around as long as they are needed and not until the garbage collection thread runs the next time.
Portable toolkits are fine and dandy, but when it comes to actually compiling code, portability typically comes to a halt.
www.ddj.com /184404996   (2297 words)

  
 Qt Toolkit - QDialog Class
A dialog is always a top-level widget, but if it has a parent, its default location is on top of the parent, it shares taskbar entry with its parent, and there are some minor details.
Warning: In Qt 2.x, calling show() on a modal dialog enters a local event loop, and work like exec(), but not returning the result code exec() returns.
This file is part of the Qt toolkit, copyright © 1995-2001 Trolltech, all rights reserved.
handhelds.org /~zecke/apidocs/qt/qdialog.html   (789 words)

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