Qt Reference Documentation (Open Source Edition)

Note: This edition is for the development of Free and Open Source software only; see Qt Commercial Editions.

Getting Started	General	Developer Resources
What's New in Qt 4.4 How to Learn Qt Installation Tutorials and Examples Porting from Qt 3 to Qt 4	About Qt About Trolltech Commercial Edition Open Source Edition Frequently Asked Questions	Mailing Lists Qt Community Web Sites Qt Quarterly How to Report a Bug Other Online Resources
API Reference	Core Features	Key Technologies
All Classes Main Classes Grouped Classes Annotated Classes Qt Classes by Module All Namespaces Inheritance Hierarchy All Functions Qt for Embedded Linux All Overviews and HOWTOs Qt Widget Gallery Class Chart	Signals and Slots Object Model Layout Management Main Window Architecture Paint System Graphics View Accessibility Tool and Container Classes Rich Text Processing Internationalization Plugin System Multithreaded Programming Inter-process Communication Unit Testing Framework	Model/View Programming Style Sheets Help Module Network Module OpenGL Module Script Module SQL Module SVG Module WebKit Integration XML Module XML Patterns: XQuery & XPath Phonon Multimedia Framework ActiveQt Framework
Add-ons & Services	Tools	Licenses & Credits
Qt Solutions Partner Add-ons Third-Party Qt Components (qt-apps.org) Support Training	Qt Designer Qt Assistant Qt Linguist qmake All Tools	GNU General Public License Third-Party Licenses Used in Qt Other Licenses Used in Qt Trademark Information Credits

Qt 4.4.0