I was looking to use Qwt widgets in a Qt GUI application. Wanted to be able to see the Qwt library in Qt Creator as a plugin.
To achieve this go to Ubuntu Software Centre and install libqwt-dev.
Subsequently, when Qt Creator is launched, Qwt widgets are available in the GUI Designer
In your GUI project's .pro file add the following line to include the Qwt library. If you forget to include this while building the project Qt Creator will show error messages that it cannot find the header files of the Qwt widgets.
