I am attempting to use qt gui widgets in a C++ flowgraph. I managed to
get all of the build dependencies figured out, which was no easy task in
itself and required a lot of direct includes. Anyway, the error that I
am getting now deals directly with the make function. The line that is
giving me trouble is as follows
qtgui_sink_c_sptr qtsink = qtgui_make_sink_c (fftsize,
gr_firdes::WIN_HAMMING, 0, 1.0, “Spectrum Display”, true, true, true,
true, QWidget *parent=NULL);
Information on this function is available here.
error that I am getting is that parent is undefined. I really don’t know
what to put for this. Note that I have also tried putting just NULL or
just 0 and it throws an undefined reference error (for the function
call). I was wondering if someone could give me some pointers on what to
use for parent? While I would eventually like to have both an fft and a
time domain view in a single window, I am currently just trying to get
the fft to show in its own window. Thanks ahead of time!