Quote Originally Posted by cgifford View Post
I currently have a large Qt application that does not use anything from the Qwt library. We would like to add a spectrogram plot to this existing application. An obvious first step is to put the Qwt spectrogram example into the existing Qt code (which cannot easily be changed).
All Qwt widgets are Qt widgets and adding a QwtPlot widget to a Qt application is as easy/difficult as adding a QLabel ( or any other Qt widget ).
Can this be done easily? Is there a way to do the exact same thing as QwtPlotSpectrogram without having to include Qwt? Sorry for the naive questions, I am still trying to wrap my head around how this can be done within my existing codebase.
Of course you can implement your own plot widget from scratch. But in the end you have to add it to your application too, what is exactly the same work you have to do with a derived QwtPlot widget.

Uwe