View source for Qt Extended

{{Short description|Application platform}}
{{Redirect|Qtopia|the museum in Sydney, Australia|Qtopia Sydney}}
{{Infobox OS
| name                   = Qt Extended
| logo                   =
| screenshot             =
| caption                =
| developer              = [[The Qt Company]]
| family                 = [[Linux]]
| source_model           =
| working_state          = Discontinued
| latest_release_version = 4.4.3
| latest_release_date    = {{Start date and age|2009|03|5}}
| kernel_type            = [[Monolithic kernel]]
| license                = [[GNU General Public License|GPL]] and [[proprietary software|proprietary]]
}}

'''Qt Extended''' (named '''Qtopia''' before September 30, 2008) is an application [[computing platform|platform]] for [[embedded Linux]]-based mobile computing devices such as [[personal digital assistant]]s, [[video projector]]s and [[mobile phone]]s.  It was initially developed by [[The Qt Company]], at the time known as Qt Software and a subsidiary of [[Nokia]]. When they cancelled the project the [[free software]] portion of it was forked by the community and given the name '''Qt Extended Improved'''. The '''QtMoko''' [[Debian Squeeze|Debian]]-based distribution is the natural successor to these projects as continued by the efforts of the [[Openmoko]] community.<ref>[http://wiki.openmoko.org/wiki/QtMoko QtMoko page] on the [[Openmoko]] Wiki.</ref><ref>[https://sourceforge.net/projects/qtmoko/ QtMoko distribution] on [[SourceForge]].com.</ref>

== Features ==
Qt Extended features:
* [[Windowing system]]
* [[Synchronization]] [[software framework|framework]]
* [[Integrated development environment]]
* [[Internationalization and localization]] support
* [[Game]]s and [[multimedia]]
* [[Personal information manager]] applications
* Full screen [[handwriting]]
* [[Input method]]s
* [[Personalization]] options
* [[Productivity]] applications
* [[Internet]] applications
* [[Java (programming language)|Java]] integration
* [[Wireless]] support

Qt Extended is [[dual license]]d under the [[GNU General Public License]] (GPL) and [[proprietary software|proprietary]] licenses.

== Devices and deployment ==
As of 2006, Qtopia was running on several million devices, including 11 mobile phone models and 30 other [[handheld]] devices.<ref>[http://www.linuxelectrons.com/news/mobile/trolltech-announces-qtopia-mobile-phone-linux Trolltech Announces Qtopia With Mobile Phone For Linux (Published: Tuesday, August 15 2006 @ 8:34 PM CDT Contributed by: Tommy) LinuxElectrons:]</ref>

Models included the [[Sharp Corporation]] [[Zaurus]] line of Linux handhelds, the [[Sony mylo]], the [[Archos]] [[Portable Media Assistant]] (PMA430) (a multimedia device), the [[GamePark Holdings]] [[GP2X]], [[Greenphone]] (an open phone initiative), [[Pocket PC]], [[First International Computer|FIC]] [[Openmoko]] phones: [[Neo 1973]] and [[Neo FreeRunner|FreeRunner]]. An unofficial [[hacker (hobbyist)|hack]] allows its use on the Archos wifi series of [[portable media player]]s (PMP) 604, 605, 705, and also on several Motorola phones such as E2, Z6 and A1200. The U980 of [[ZTE]] is the last phone running it.

== Software development ==
Native applications could be developed and compiled using [[C++]].<ref>{{cite web | url=https://lwn.net/Articles/258453/ | title=Google's phone initiative: Android [LWN.net]}}</ref> Managed applications could be developed in Java.

{{Infobox OS| name = Qt Extended Improved
| logo =
| screenshot = Qtmoko v26 Desktop.png
| caption =
| developer = Qt Extended Improved Project
| family = [[Linux]]
| source_model =
| latest_release_version = 4.5.2
| latest_release_date = {{Start date and age|2009|06|28}}
| kernel_type = [[Monolithic kernel]]
| license = [[GNU General Public License|GPL]] and [[proprietary software|proprietary]]
| website = {{URL|wiki.openmoko.org/wiki/Qt_Extended_Improved}}
}}

== Discontinuation ==
On March 3, 2009, Qt Software announced the discontinuation of Qt Extended as a standalone product, with some features integrated on the Qt Framework.<ref>{{cite web | url=http://www.qtsoftware.com/about/news/qt-software-discontinues-qt-extended | title=Qt Software discontinues Qt Extended | url-status=dead | archive-url=https://web.archive.org/web/20090308203837/http://www.qtsoftware.com/about/news/qt-software-discontinues-qt-extended | archive-date=2009-03-08 }}</ref>

== {{anchor|QtMoko}} Qt Extended Improved ==
The [[Openmoko]] community has [[fork (software development)|forked]]<ref>{{cite web | url=http://wiki.openmoko.org/wiki/Qt_Extended_Improved | title=Openmoko wiki – Qt Extended Improved | url-status=dead | archive-url=https://web.archive.org/web/20120523100545/http://wiki.openmoko.org/wiki/Qt_Extended_Improved | archive-date=2012-05-23 }}</ref> the final stable release into '''Qt Extended Improved''' (later renamed to '''QtMoko''')<ref>{{cite web | url=https://qtmoko.sourceforge.net/ | title=qt moko homepage}}</ref> which, like its predecessor, is an application [[platform (computing)|platform]] for [[embedded Linux]]-based mobile computing devices such as [[personal digital assistant]]s, [[video projector]]s and [[mobile phone]]s [[dual license]]d under the [[GNU General Public License]] (GPL) and [[proprietary software|proprietary]] licenses.

Qt Extended Improved can run on several mobile devices, most notably the [[Openmoko]] phones: [[Neo 1973]] and [[Neo FreeRunner|FreeRunner]].

== Other mobile operating systems ==
* [[Access Linux Platform]]
* [[Android (operating system)|Android]]
* [[iOS (Apple)|iOS]]
* [[MeeGo]]
* [[Nucleus RTOS]]
* [[Openmoko Linux]]
* Palm [[webOS]]
* [[Symbian]]
* [[Tizen]]
* [[Windows Mobile]]
[[File:Extension.QPK.png|alt= |thumb|[[File:Qpk.png|frameless]]Qt Extended data structure file]]

== References ==
{{Reflist}}

== External links ==
{{Portal|Free and open-source software}}
* [https://web.archive.org/web/20090302081224/http://www.qtsoftware.com/files/pdf/qt-extended-4.4-whitepaper Qt Extended Whitepaper] from Qt Software
* {{cite web |title=Qtopia Screenshots |url=http://qtextended.org/themes/Trolltech/screens.php |access-date=29 June 2009 |publisher=Trolltech |url-status=dead |archive-url=https://web.archive.org/web/20090228232015/http://qtextended.org/themes/Trolltech/screens.php |archive-date=February 28, 2009 }}

<!-- Interlang -->
{{Mobile operating systems}}
{{Mobile phones}}

<!-- Categories -->
[[Category:Embedded Linux]]
[[Category:Mobile Linux]]
[[Category:Mobile software]]
[[Category:Openmoko]]
[[Category:Personal digital assistant software]]
[[Category:Software forks]]
[[Category:Software that uses Qt]]