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Can I Use the Special Function Keys to Interrupt a Script?

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Back in the old QuickBasic and early Visual Basic days I would write code that allow me to interrupt a running algorithm by pressing a special function key. Is there a similar function in today's Matlab?
Thanks,
Dave

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Accepted Answer

Walter Roberson
Walter Roberson on 23 Aug 2012
If you have a graphics involved, then you can set a WindowKeyPressFcn callback.
However, handle graphics callbacks are only given control under limited circumstances, such as if there is a pause() or drawnow() call. If your code is pure computation, then if the computation is mostly at the MATLAB level then timers can interrupt them; if the pure computation is built-in or MEX routines then there isn't any way to interrupt other than control-c.

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More Answers (1)

Kye Taylor
Kye Taylor on 23 Aug 2012
Ctrl+C will kill a running script/function

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David Koenig
David Koenig on 23 Aug 2012
Yes, but I do not want to stop the script/function. Instead I want to be able to carry out another short function and get back to the algorithm that I interrupted. I don't think CRTL-C would allow that. Thanks anyway.
Kye Taylor
Kye Taylor on 23 Aug 2012
Forgive me if you know about breakpoints and using the debugger, but you can place the command
keyboard
in a script, and it will pause execution of the script just like a breakpoint. Althought this requires knowing a priori where you want stop a scripts execution.
Another alternative is to set a conditional/error breakpoint that will pause execution when a condition is met that you specify.

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