- Qt 5.5
- Qt Reference Pages
- Qt 5.5.1 Reference Documentation

# Qt Reference Pages

### Class Lists

All 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 5
All Modules | A list of all modules in Qt 5.
All Namespaces | A Qt namespace contains enum types, functions, and sometimes classes.
All QML APIs by Module | A list of all QML API in Qt 5
All QML Basic Types | A list of QML basic types in this Qt release.
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.

### Function Lists

All Functions | All documented Qt functions listed alphabetically with a link to where each one is declared.
Endian Conversion Functions | Functions to convert between little and big endian representations of numbers
Generic Algorithms | Includes the generic, template-based algorithms
Generic Math Functions | File provides various math functions
Global Qt Declarations | File includes the fundamental global declarations. It is included by most other Qt header files
Platform-Specific Functions | Exported functions for fine tuning Qt applications.

### QML Reference

- The QML Reference

### Qt Tool Manuals

- Qt Creator
- Qt Linguist
- Qt Assistant
- Qt Designer
- qmake

### Value-Add Features

- Qt for Device Creation
- Qt Charts
- Qt Quick Compiler
- Qt Data Visualization
- Qt Purchasing
- Qt Virtual Keyboard
- Qt Quick 2D Renderer

### Platform Reference

Qt for Linux/X11 | Platform support for Linux/X11.
Qt for OS X | Platform support for OS X.
Qt for Windows | Platform support for Windows.