Class and Function Documentation

All C++ Classes: If you know the name of the class you want, find it here.

All Classes by Module: A list of all C++ API components in Qt

All Modules: A list of all modules in Qt 6.

All Namespaces: A Qt namespace contains enum types, functions, and sometimes classes.

All QML Modules: A list of all QML modules in Qt.

All QML Types: A list of QML types in this Qt release.

Annotated Class List: If you don't know the name of the class you want, but you know what the class should do, you might try looking here.

Groups Of Related Classes: If you know what kind of class you want (GUI, painting, I.O, etc), look here.

Inheritance Hierarchy: The C++ class inheritance hierarchy for all classes in the Qt API.

Obsolete Classes: Classes and members marked obsolete that should not be used in new code.

Obsolete QML Types: A list of obsolete QML types that should not be used in new code.

<QtAlgorithms>: The <QtAlgorithms> header includes the generic, template-based algorithms.

<QtCompilerDetection>: The <QtCompilerDetection> header file includes various compiler-specific macros.

<QtEndian>: The <QtEndian> header provides functions to convert between little and big endian representations of numbers.

<QtGlobal>: The <QtGlobal> header file includes an assortment of other headers.

<QtMath>: The <QtMath> header file provides various math functions.

<QtProcessorDetection>: The <QtProcessorDetection> header file includes various architecture-specific macros.

<QtSystemDetection>: The <QtSystemDetection> header file includes various platfrom-specific macros.

All Functions and Macros: All documented Qt functions listed alphabetically with a link to where each one is declared.

qfloat16: Provides 16-bit floating point support.