- Qt 6.6
- Qt Overviews
- Qt 6.6.2 Reference Documentation

# Qt Overviews

Qt features a wide range of different technologies. The following topics are key areas of functionality and can be used as a starting point for learning how to to get the most of Qt.

- Development Tools
- User Interfaces
- Core Internals
- Data Input Output
- Networking and Connectivity
- Graphics
- Mobile Development
- QML Applications
- Platform Integration
- XML Processing
- Internationalization with Qt
- Testing and Debugging
- Qt Languages

## Best Practices

These pages give guidance on how to use Qt technologies best to create applications that excel in usability and software design.

Best Practices for QML and Qt Quick | Lists best practices for working with QML and Qt Quick
Calling Qt Functions From Unix Signal Handlers | You can't. But don't despair, there is a way...
Coordinate System | Information about the coordinate system used by the paint system
Creating Shared Libraries | How to create shared libraries.
Creating and Using Components for Qt Designer | How to create and use custom widget plugins
Desktop Integration | Integrating with the user's desktop environment.
Exception Safety | A guide to exception safety in Qt.
How to Create Qt Plugins | A guide to creating plugins to extend Qt's applications and functionalities.
Qt Test Tutorial | A short introduction to testing with Qt Test
Restoring a Window's Geometry | How to save and restore window geometry.
Session Management | How to do session management with Qt.
Setting the Application Icon | How to set your application's icon.

## Reference

Also see All Overviews for lists of overview articles, C++ modules, and QML modules on one page.