Going from GUI to non-GUI operation.

[Glen I Langston]

This email is a question concerning the Gnuradio transition from
a GUI interface to purely python execution.

We’ve developed a series of gnuradio-companion compatible designs
that are "just about" perfected from our point of view.   Now we’re going
from interactive mode to fully automatic startup and execution from
computer reboot.

Our designs now immediately start capturing radio astronomy spectra
and transient events.

Is there a simple mechanism to turn off and on the GUI interface?  Maybe
just in the control block?   

Sorry if this is an obvious question.

Thanks - Glen