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The Harmony toolkit is a never-completed free software widget toolkit that aimed to be API compatible with the then non-freely licensed Qt widget toolkit. The QPL license that Qt used was free only if the program was not sold for profit and if its source code was freely available. It was later released under the terms of the GNU Lesser General Public License (LGPL). In addition to source compatibility with Qt, the Harmony project also aimed to add functionality such as multi-threaded applications and pluggable themes, features that Qt itself later added.

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  • The Harmony toolkit is a never-completed free software widget toolkit that aimed to be API compatible with the then non-freely licensed Qt widget toolkit. The QPL license that Qt used was free only if the program was not sold for profit and if its source code was freely available. It was later released under the terms of the GNU Lesser General Public License (LGPL). In addition to source compatibility with Qt, the Harmony project also aimed to add functionality such as multi-threaded applications and pluggable themes, features that Qt itself later added. The GNU Project launched the Harmony project, and also the GNOME desktop project, to counter the perceived problem that the free software KDE desktop was gaining popularity but was requiring that people install proprietary software. In July 1997 the GNU Project called for volunteers for a Qt replacement in GNU's Bulletin and listed it as a top priority task on its website. Development ceased at the end of 2000, when Qt was released under the GPL, removing the perceived need for the Harmony Project to exist. In January 2009 Qt itself was made available under the GNU LGPL, along with the previous license options. (en)
  • La biblioteca Harmony es un libre nunca terminado que aspiraba a ser una API compatible con el actual (en aquel momento, propietario) Qt, pero que trataba de añadir funcionalidades como aplicaciones multihilo y temas. Fue realizada bajo los términos de la licencia GNU Lesser General Public License (LGPL). El desarrollo se detuvo a finales de 2000, cuando Qt se hizo software libre eliminando de este modo la necesidad de que el proyecto Harmony existiera. (es)
  • Harmony toolkit est un framework de composants d'interface graphique créé par le projet GNU comme alternative à Qt lorsque ce dernier était distribué par Trolltech sous la licence QPL, incompatible avec la notion de copyleft de la licence publique générale GNU. Le projet est abandonné lorsque Qt est distribué sous une double licence, GNU GPL et QPL. (fr)
  • De Harmony-toolkit was een kloon van de Qt-toolkit. Het project werd opgestart omdat de grafische gebruikersinterface KDE gebruik maakte van Qt. Qt had toen geen vrije licentie, wat een probleem vormde voor Linuxdistributies die traditioneel onder een vrije licentie verspreid worden. Toen Qt in 2000 echter wel onder de GPL werd uitgebracht (een vrije licentie), werd de ontwikkeling van Harmony gestaakt. (nl)
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  • La biblioteca Harmony es un libre nunca terminado que aspiraba a ser una API compatible con el actual (en aquel momento, propietario) Qt, pero que trataba de añadir funcionalidades como aplicaciones multihilo y temas. Fue realizada bajo los términos de la licencia GNU Lesser General Public License (LGPL). El desarrollo se detuvo a finales de 2000, cuando Qt se hizo software libre eliminando de este modo la necesidad de que el proyecto Harmony existiera. (es)
  • Harmony toolkit est un framework de composants d'interface graphique créé par le projet GNU comme alternative à Qt lorsque ce dernier était distribué par Trolltech sous la licence QPL, incompatible avec la notion de copyleft de la licence publique générale GNU. Le projet est abandonné lorsque Qt est distribué sous une double licence, GNU GPL et QPL. (fr)
  • De Harmony-toolkit was een kloon van de Qt-toolkit. Het project werd opgestart omdat de grafische gebruikersinterface KDE gebruik maakte van Qt. Qt had toen geen vrije licentie, wat een probleem vormde voor Linuxdistributies die traditioneel onder een vrije licentie verspreid worden. Toen Qt in 2000 echter wel onder de GPL werd uitgebracht (een vrije licentie), werd de ontwikkeling van Harmony gestaakt. (nl)
  • The Harmony toolkit is a never-completed free software widget toolkit that aimed to be API compatible with the then non-freely licensed Qt widget toolkit. The QPL license that Qt used was free only if the program was not sold for profit and if its source code was freely available. It was later released under the terms of the GNU Lesser General Public License (LGPL). In addition to source compatibility with Qt, the Harmony project also aimed to add functionality such as multi-threaded applications and pluggable themes, features that Qt itself later added. (en)
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  • Harmony (widget) (es)
  • Harmony toolkit (fr)
  • Harmony (toolkit) (en)
  • Harmony-toolkit (nl)
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