Qt group

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About Qt

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What is Qt?

Qt is a cross-platform application development framework for desktop, embedded and mobile. Supported Platforms include Linux, OS X, Windows, VxWorks, QNX, Android, iOS, BlackBerry, Sailfish OS and others.

Qt is not a programming language on its own. It is a framework written in C++. A preprocessor, the MOC (Meta-Object Compiler), is used to extend the C++ language with features like signals and slots. Before the compilation step, the MOC parses the source files written in Qt-extended C++ and generates standard compliant C++ sources from them. Thus the framework itself and applications/libraries using it can be compiled by any standard compliant C++ compiler like Clang, GCC, ICC, MinGW and MSVC.

The Qt Company and The Qt Project

Development of Qt was started in 1990 by the Norwegian programmers Eirik Chambe-Eng and Haavard Nord. Their company, Trolltech, that sold Qt licenses and provided support, went through several acquisitions over the years. Today former Trolltech is named The Qt Company and

Qt Group

Finnish software company

Not to be confused with the Qt Project.

Company typePublic

Traded as

Nasdaq Helsinki: QTCOM
IndustryComputer software
Founded4 March 1994 (as Trolltech)
Founders
  • Eirik Chambe-Eng
  • Haavard Nord
[1]
Headquarters

Espoo

,

Finland[2]

Area served

Worldwide

Key people

  • Juha Varelius (CEO) (2008-)
  • Jouni Lintunen (CFO) (2020-)
[3]
ProductsQt, Qt Creator, Qbs, PySide, Coco, Squish, Test Center, Axivion Suite
Revenue180,743,000 Euro (2023) 

Operating income

47,349,000 Euro (2023) 

Net income

35,455,000 Euro (2023) 

Number of employees

775 (2023) 
Parent
Websitewww.qt.io

Qt Group Plc (pronounced "cute"; formerly known as Trolltech, Qt Company, Qt Development Frameworks, Quasar Technologies and Qt Software) is a global software company headquartered in Espoo, Finland. It was formed following the acquisition of Qt by Digia, but was later spun off into a separate, publicly traded company.

The

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