How to get the CurrentKey?

[Prometheus]

Hello everyone,

I am trying to "translate" my program from Matlab to Octave and I need help:
I have to know, how I can get the keyboard inputs in Octave. I want to
choose a point in many images with "ginput()" and I want to accept/delete it
with "Return" or "Escape" etc...

Matlab:
    currkey=get(gcf,'CurrentKey');
    if strcmp(currkey, 'return')  
            "Do this and that"
    end

I would like to solve this without a GUI :)

Thank you very much.
Prometheus



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