Qt5.4 All Modules

Qt5.4 All Modules

Qt Essentials

Qt essentials define the foundation of Qt on all platforms. They are available on all supported development platforms and on the tested target platforms. They will remain source and binary compatible during Qt 5.

Essential modules are general and useful for a majority of Qt applications. A module that is used for a special purpose is considered an add-on module even if it is available on all supported platforms.

The following table lists the Qt essentials:

Module	Description
Qt Core	Core non-graphical classes used by other modules.
Qt GUI	Base classes for graphical user interface (GUI) components. Includes OpenGL.
Qt Multimedia	Classes for audio, video, radio and camera functionality.
Qt Multimedia Widgets	Widget-based classes for implementing multimedia functionality.
Qt Network	Classes to make network programming easier and more portable.
Qt QML	Classes for QML and JavaScript languages.
Qt Quick	A declarative framework for building highly dynamic applications with custom user interfaces.
Qt Quick Controls	Reusable Qt Quick based UI controls to create classic desktop-style user interfaces.
Qt Quick Dialogs	Types for creating and interacting with system dialogs from a Qt Quick application.
Qt Quick Layouts	Layouts are items that are used to arrange Qt Quick 2 based items in the user interface.
Qt SQL	Classes for database integration using SQL.
Qt Test	Classes for unit testing Qt applications and libraries.
Qt WebKit	Classes for a WebKit2 based implementation and a new QML API. See also Qt WebKit Widgets in the add-on modules.
Qt WebKit Widgets	WebKit1 and QWidget-based classes from Qt 4.
Qt Widgets	Classes to extend Qt GUI with C++ widgets.

If you use qmake to build your projects, the Qt Core and Qt GUI modules are included by default. To link only against Qt Core, add the following line to your .pro file:

QT -= gui

On Windows, if you do not use qmake or other build tools such as CMake, you also need to link against the qtmain library.

Qt Add-Ons

Qt Add-On modules bring additional value for specific purposes. These modules may only be available on some development platform. Many add-on modules are either feature-complete and exist for backwards compatibility, or are only applicable to certain platforms. Each add-on module specifies its compatibility promise separately.

The Qt installers include the option of downloading the add-ons. For more information, visit the Getting Started with Qt page.

The following table lists the Qt add-ons:

Module	Development Platforms	Target Platforms	Description
Active Qt	Windows		Classes for applications which use ActiveX and COM
Enginio	All	All	A Backend-as-a-Service solution to ease the backend development for connected and data-driven applications.
Qt Android Extras	All	Android	Provides platform-specific APIs for Android.
Qt Bluetooth	All	Android, Linux, Blackberry	Provides access to Bluetooth hardware.
Qt Concurrent			Classes for writing multi-threaded programs without using low-level threading primitives.
Qt D-Bus	Unix-based		Classes for inter-process communication over the D-Bus protocol.
Qt Graphical Effects	All		Graphical effects for use with Qt Quick 2.
Qt Image Formats	All		Plugins for additional image formats: TIFF, MNG, TGA, WBMP.
Qt Mac Extras	All	OS X	Provides platform-specific APIs for OS X.
Qt NFC	All	Blackberry	Provides access to Near-Field communication (NFC) hardware.
Qt OpenGL			OpenGL support classes. Note: Provided to ease porting from Qt 4.x. Please use the QOpenGL classes in Qt GUI for new code
Qt Platform Headers			Provides classes that encapsulate platform-specific information, tied to a given runtime configuration of a platform plugin.
Qt Positioning	All		Provides access to position, satellite and area monitoring classes.
Qt Print Support	All		Classes to make printing easier and more portable.
Qt Declarative	All		Qt Declarative is provided for Qt 4 compatibility. The documentation is available through the Qt 4.8 Qt Quick documentation.
Qt Script	All		Classes for making Qt applications scriptable. Provided for Qt 4.x compatibility. Please use the QJS* classes in the Qt QML module for new code.
Qt Script Tools	All		Additional components for applications that use Qt Script.
Qt Sensors	All	Android, Blackberry, Qt for iOS, WinRT and Mer.	Provides access to sensor hardware and motion gesture recognition.
Qt Serial Port	All	Windows, Linux, and OS X.	Provides access to hardware and virtual serial ports.
Qt SVG	All		Classes for displaying the contents of SVG files. Supports a subset of the SVG 1.2 Tiny standard.
Qt WebChannel	All	All	Provides access to QObject or QML objects from HTML clients for seamless integration of Qt applications with HTML/JavaScript clients.
Qt WebEngine	All	Windows, Linux, and OS X.	Provides support for web applications using the Chromium browser project.
Qt WebSockets	All	All	Provides WebSocket communication compliant with RFC 6455.
Qt Windows Extras	All	Windows	Provides platform-specific APIs for Windows.
Qt X11 Extras	All	Linux/X11	Provides platform-specific APIs for X11.
Qt XML			C++ implementations of SAX and DOM. Note: Deprecated, please use QXmlStreamReader and QXmlStreamWriter for new functionality.
Qt XML Patterns			Support for XPath, XQuery, XSLT and XML schema validation.