How can I use a keypressfct without a figure?
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Hello, I just want to use a keypressfct sort of thing, except for there is no figure in my code. I am just taking data and it is continuously displaying on the screen and I want to be able to press spacebar and have the code stop. Any suggestions? Thanks.
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Answers (1)
Jan
on 3 Jul 2013
A Keypress-function, which is not bound to a specific figure, is called a keylogger. Such programs are used to steal passwords usually and therefore I will not implement or share the corresponding code.
Instead of catching a pressed space bar, using a tiny GUI with a "Stop"-Button would be much more user-friendly due to the intuitive interaction. Then let the button change a globally readable property, e.g.:
H = uicontrol('Sytle', 'PushButton', 'String', 'Stop', ...
'Callback', 'delete(gcbf)');
for k = 1:1e6
disp(k);
drawnow;
if ~ishandle(H)
disp('Stopped by user');
break;
end
end
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