Qt

Qt Programming

Qt (http://qt.digia.com/) is a cross-platform (Qt is the basis for the KDE desktop environment supports X Window System (Unix/X11), Apple Mac OS X, and Microsoft Windows NT/9x/2000/XP), it is an object-oriented application development framework, widely used for the development of GUI programs (in which case it is known as a widget toolkit), and for developing non-GUI programs such as console tools and servers. Used in numerous commercial applications such as Google Earth, Skype for Linux and Adobe Photoshop Elements. Released under the LGPL or a commercial license.

To use the framework a previous C++ experience is recommended. If you'd like an easier language for use with Qt, check out PyQt. See X Window Programming/Qt for more information.

The Qt documentation (provided freely as the framework) is probably the best information source you can find. See: http://doc.trolltech.com/. It provides with extensive details on Qt Procedures.

For more help, try #qt on irc.freenode.net.

Wikipedia has related information at Qt (toolkit)

Development Environment - Setting Up the Work Area

Lesson 1 - Hello, World!

Lesson 2 - Signals and Slots

Lesson 3 - QtWebKit Module

Lesson 4 - Video in a Qt application

Lesson 5 - IDE