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HGZ is developing and producing fully automatic coffee machines since 1969 in Switzerland. In 2006 the idea of a modern computer system based man-machine-interface was ready to be realized. Qt's linguist tool was the reason to start with Qt as development framework. This session will give live demonstration of the new coffee machine S400 and a retrospection of the GUI development in the passed three years. Why Qt was chosen as development framework, how the software is designed, and which Qt classes were used. The linguist tool in action and personal experience with the framework, its documentation and other Qt resources. Qt's hardware independence as chance and dependencies on the OS as possible bottleneck and how to prevent these.
Presentation by Samuel Lüthi held during Qt Developer Days 2009.