- Qt 6.9
- Qt Reference Pages
- All C++ Classes
- All Classes by Module
- Qt 6.9.0 Reference Documentation

Inheritance Hierarchy ◦ All Namespaces

# All Classes by Module

These are the C++ API pages for Qt's modules. For a list of all classes on a single page, visit the All Classes page.

QAxContainer C++ Classes | Module is a Windows-only extension for accessing ActiveX controls and COM objects
QAxServer C++ Classes | Module is a Windows-only static library that you can use to turn a standard Qt binary into a COM server
Qt 5 Core Compatibility C++ Classes | Contains the Qt 5 Core APIs removed from Qt 6
Qt Bluetooth C++ Classes | Enables basic Bluetooth operations like scanning for devices and connecting them
Qt Charts C++ Classes | C++ classes for the Qt Charts API
Qt CoAP C++ Classes | Provides classes to use CoAP protocol
Qt Concurrent C++ Classes | Qt Concurrent module contains functionality to support concurrent execution of program code
Qt Core C++ Classes | Provides core non-GUI functionality
Qt D-Bus C++ Classes | Qt D-Bus module is a Unix-only library that you can use to perform Inter-Process Communication using the D-Bus protocol
Qt Data Visualization C++ Classes | C++ classes for the Qt Data Visualization API
Qt GUI C++ Classes | Qt GUI module provides the basic enablers for graphical applications written with Qt
Qt HTTP Server C++ Classes | List of C++ classes that provide HTTP server framework
Qt Help C++ Classes | Provides classes for integrating online documentation in applications
Qt Location C++ Classes | Provides C++ interfaces to retrieve location and navigational information
Qt MQTT C++ Classes | Provides classes that enable sending messages via the MQTT protocol
Qt Multimedia Module C++ Classes | Qt Multimedia module provides audio, video and camera functionality
Qt NFC C++ Classes | An API for accessing NFC Forum Tags
Qt Network Authorization C++ Classes | Provides classes for network authorization support (OAuth)
Qt Network C++ Classes | Provides classes to make network programming easier and portable
Qt OPC UA C++ Classes | List of C++ classes that provide the Qt OPC UA functionality
Qt OpenGL C++ Classes | Qt OpenGL module offers classes that make it easy to use OpenGL in Qt applications
Qt PDF C++ Classes | Renders pages from PDF documents
Qt Positioning C++ Classes | Positioning module provides positioning information via QML and C++ interfaces
Qt Print Support C++ Classes | Qt PrintSupport module provides classes to make printing easier and portable
Qt Qml C++ Classes | C++ API provided by the Qt Qml module
Qt Quick C++ Classes | Qt Quick module provides classes for embedding Qt Quick in Qt/C++ applications
Qt Quick Controls C++ Classes | Provides classes for setting up the controls from C++
Qt Quick Test C++ API | Provides macros and functions for tests
Qt Quick Widgets C++ Classes | C++ API provided by the Qt Quick Widgets module
Qt Remote Objects C++ Classes | Provides an easy to use mechanism for sharing a QObject's properties, signals, or slots, between processes
Qt SCXML C++ Classes | Provides classes to create and use state machines from SCXML files
Qt SQL C++ Classes | Provides a driver layer, SQL API layer, and a user interface layer for SQL databases
Qt SVG C++ Classes | Qt SVG module provides functionality for handling SVG images
Qt Sensors C++ Classes | Provides classes for reading sensor data
Qt Serial Bus C++ Classes | Provides classes to read and write serial bus data
Qt Serial Port C++ Classes | List of C++ classes that enable access to a serial port
Qt Spatial Audio Module C++ Classes | Qt Spatial Audio module provides functionality for 3D audio
Qt State Machine C++ Classes | Qt State Machine module provides classes for creating and executing state graphs
Qt Test C++ Classes | Provides classes for unit testing Qt applications and libraries
Qt TextToSpeech C++ Classes | C++ API to access text-to-speech engines
Qt UI Tools C++ Classes | Provides classes to handle forms created with Qt Widgets Designer
Qt Virtual Keyboard C++ Classes | Provides classes to implement input methods for virtual keyboards
Qt Wayland Compositor C++ Classes | Provides C++ classes for writing custom Wayland display servers
Qt WebChannel C++ Classes | List of C++ classes that provide the Qt WebChannel functionality
Qt WebEngine Core C++ Classes | Provides public API shared by both QtWebEngineQuick and QtWebEngineWidgets
Qt WebEngine Quick C++ Classes | Exposes C++ functionality to Qt Quick
Qt WebEngine Widgets C++ Classes | Provides C++ classes for rendering web content in a QWidget based application
Qt WebSockets C++ Classes | List of C++ classes that enable WebSocket-based communication
Qt WebView C++ Classes and Namespaces | Provides a helper function to set up and use the WebView
Qt Widgets C++ Classes | Qt Widgets module extends Qt GUI with C++ widget functionality
Qt Widgets Designer C++ Classes | Provides classes to create your own custom widget plugins for Qt Widgets Designer and classes to access Qt Widgets Designer components
Qt XML C++ Classes | Qt XML module provides a C++ implementation of the DOM standard for XML

Inheritance Hierarchy ◦ All Namespaces