Qt 4.7

• Contains core non-GUI functionality.

• Enables inter-Process Communication using the D-Bus

Example use: Your application polls a website for new content availability and offers the information gathered to other applications through D-Bus. Your application can also query information offered by other applications in the same way.

• Declarative framework for producing dynamic user interfaces.
• Uses the QML markup language, a JavaScript extension that offers easier UI customisation than common QtGUI elements in general.
• Can be used to create completely new applications or to extend existing ones
• Does not require C++ skills
• Integrates with existing Qt C++ applications

Example use: Create an application using the QML language, and use the visual editor provided in Qt Creator for polishing the UI.

• A wide selection of classes that allow you to implement graphical user interfaces to your Qt applications
• QtCore extension that provides GUI functionality

Example use: Create a graphical user interface for your Qt application.

• Classes for network programming
• Opening, maintaining and closing of network sessions using various protocols
• Servers for accepting connections

Example use: To add a support for network based features to your application, such as connecting to a local WLAN network and fetching data to be used in your application.

• Allows Qt applications to use the OpenGL® APIs to create hardware-accelerated 2D and 3D graphics
• The base of OpenGL® in Qt is the QGLWidget class, which creates a display buffer for rendering OpenGL® objects.

Example use: Use in your Qt application to enable easier integration of OpenGL® 3D graphics.

• Allows scripting for Qt applications.

Example use: Create a scriptable Qt application.

• Additional Qt Script components

• Classes for database integration with SQL

• Tool classes for unit testing

Example use: Build your application against the QtTest library to enable testing of various application features using QtTestLib

• Classes for handling Qt Designer forms in applications
• Enables applications to create UIs dynamically based on UI files created in Qt Designer

Example use: Use in your application to process Qt Designer UI files to create user interfaces at runtime

• Provides a stream reader and writer for XML documents, and C++ implementations of SAX and DOM.

• Provides support for XPath, XQuery, XSLT and XML Schema validation.

• Provides a Web browser engine that makes it easy to embed content from the World Wide Web into your Qt application.
• At the same time Web content can be enhanced with native controls.

Example use: To enable your application to embed data from the web, such as the ongoing week's lottery numbers, or recent messages from a social application. of SAX and DOM.