All About Linux: Creating and Compiling Qt Projects on the Command Line

“Anyone who has used KDE will know that most of the UI interface
in KDE as well as the KDE specific applications have been developed
using the Qt tool kit. Qt consists of a set of libraries written in
C++ language which aids the developer in creating robust well
designed GUI applications in the shortest period of time. Qt is
developed by a Norwegian company called Trolltech and is released
under two separate licences. For the Linux and Windows platform,
there is the GPL licence and it also sells the library under a
commercial licence for the Windows platform if developers want to
use it to create proprietary applications…”

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