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Re: [Discuss-gnuradio] Two instances of QT GUI Sink in a single program

From: Tom Rondeau
Subject: Re: [Discuss-gnuradio] Two instances of QT GUI Sink in a single program
Date: Sat, 27 Aug 2011 17:14:12 -0400

On Thu, Aug 25, 2011 at 4:41 AM, Sivan Toledo <address@hidden> wrote:
> Is it possible to put two QT GUI Sinks (FFT displays) in a single
> application window? I want to use one to show the radio spectrum (to/from
> UHD) and another to show the audio spectrum, at the same time.
> When I put two QT GUI Sink blocks in a GRC graph, I see only one of them in
> the application windows, unlike QT GUI Entries and other GUI elements that
> can have many instances in the same window.
> Thanks, Sivan Toledo

You can definitely have more than one QT GUI blocks in a program. It's
probably an initialization problem that's going wrong in your code.
You can see multiple QT GUI's used in

Also, gnuradio-companion now works with QT GUI (set in the Options
block), and it handles multiple QT GUI blocks. You could create
something there, build the flow graph, and then see how the QT GUI
objects are manipulated to make sure they all get shown properly.


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