All Modules

Modules for general software development
QtCoreCore non-graphical classes used by other modules
QtGuiGraphical user interface (GUI) components
QtMultimediaClasses for low-level multimedia functionality
QtNetworkClasses for network programming
QtOpenGLOpenGL support classes
QtOpenVGOpenVG support classes
QtScriptClasses for evaluating Qt Scripts
QtScriptToolsAdditional Qt Script components
QtSqlClasses for database integration using SQL
QtSvgClasses for displaying the contents of SVG files
QtWebKitClasses for displaying and editing Web content
QtXmlClasses for handling XML
QtXmlPatternsAn XQuery & XPath engine for XML and custom data models
QtDeclarativeAn engine for declaratively building fluid user interfaces.
PhononMultimedia framework classes
Qt3SupportQt 3 compatibility classes
Modules for working with Qt's tools
QtDesignerClasses for extending Qt Designer
QtUiToolsClasses for handling Qt Designer forms in applications
QtHelpClasses for online help
QtTestTool classes for unit testing
Modules for Windows developers
QAxContainerExtension for accessing ActiveX controls
QAxServerExtension for writing ActiveX servers
Modules for Unix developers
QtDBusClasses for Inter-Process Communication using the D-Bus

If you use qmake to build your projects, the QtCore and QtGui modules are included by default. To link only against QtCore, 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.

See also Class and Function Documentation.


Module contains namespaces and classes for multimedia functionality


Module is a Windows-only extension for accessing ActiveX controls and COM objects


Module is a Windows-only static library that you can use to turn a standard Qt binary into a COM server


Module provides classes that ease porting from Qt 3 to Qt 4


Module contains core non-GUI functionality


Module is a Unix-only library that you can use to perform Inter-Process Communication using the D-Bus protocol


QDeclarativeListReference class allows the manipulation of QDeclarativeListProperty properties


Module provides classes that allow you to create your own custom widget plugins for Qt Designer, and classes that enable you to access Qt Designer's components


Module extends QtCore with GUI functionality


Module provides classes for integrating online documentation in applications


Module provides low-level multimedia functionality


Module provides classes to make network programming easier and portable


Module offers classes that make it easy to use OpenGL in Qt applications


Module is a plugin that provides support for OpenVG painting


Module provides classes for making Qt applications scriptable


Module provides additional components for applications that use Qt Script



Module provides classes for displaying and creating SVG files


Module provides classes for unit testing Qt applications and libraries


Module provides classes to handle forms created with Qt Designer


Module provides a web browser engine as well as classes to render and interact with web content


Module provides a stream reader and writer for XML documents, and C++ implementations of SAX and DOM


Module provides support for XPath, XQuery, XSLT and XML Schema validation

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