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# Grouped Classes

This page provides a way of navigating Qt's classes by grouping related classes together. Some classes may appear in more than one group.

Abstract Widget Classes | Abstract widget classes usable through subclassing.
Accessibility Classes | Classes that provide support for accessibility.
Advanced Widgets | Advanced GUI widgets such as tab widgets and progress bars.
Basic Widgets | Basic GUI widgets such as buttons, comboboxes and scroll bars.
Database Classes | Database related classes, e.g. for SQL databases.
Date and Time Classes | Classes for handling date and time.
Desktop Environment Classes | Classes for interacting with the user's desktop environment.
Drag And Drop Classes | Classes dealing with drag and drop and mime type encoding and decoding.
Environment Classes | Classes providing various global services such as event handling, access to system settings and internationalization.
Event Classes | Classes used to create and handle events.
Explicitly Shared Classes | Classes that use explicit sharing to manage internal data.
Generic Containers | Qt's template-based container classes.
Graphics View Classes | Classes in the Graphics View framework for interactive applications.
Help System | Classes used to provide online-help for applications.
Implicitly Shared Classes | Classes that use reference counting for fast copying.
Input/Output and Networking | Classes providing file input and output along with directory and network handling.
Inter-Process Communication in Qt | Inter-Process communication in Qt applications.
Layout Management | Classes handling automatic resizing and moving of widgets, for composing complex dialogs.
Main Window and Related Classes | Everything you need for a typical modern main application window, including menus, toolbars, workspace, etc.
Miscellaneous Classes | Various other useful classes.
Model/View Classes | Classes that use the model/view design pattern.
Multimedia, Graphics and Printing | Classes that provide support for graphics (2D, and with OpenGL, 3D), image encoding, decoding, and manipulation, sound, animation, printing, etc.
Non-GUI Classes | Collection classes such as list, queue, stack and string, along with other classes that can be used without needing QApplication.
Object Model | The Qt GUI toolkit's underlying object model.
Organizers | User interface organizers such as splitters, tab bars, button groups, etc.
Plugin Classes | Plugin related classes.
Qt for Embedded Linux Classes | Classes that are specific to Qt for Embedded Linux.
Script Tools | Classes for managing and debugging scripts.
Scripting Classes | Qt Script-related classes and overviews.
Secure Sockets Layer (SSL) Classes | Classes for secure communication over network sockets. The classes below provide support for secure network communication using the Secure Sockets Layer (SSL) protocol, using the OpenSSL Toolkit to perform encryption and protocol handling.
Standard Dialog Classes | Ready-made dialogs for file, font, color selection and more.
Text Processing Classes | Classes for text processing. (See also XML Classes.)
Threading Classes | Classes that provide threading support.
Widget Appearance and Style | Appearance customization with styles, fonts, colors etc.
XML Classes | Classes that support XML, via, for example DOM and SAX.