MATLAB Answers


remove unused callbacks from GUI m files

Asked by Adrian Dronca on 18 Jan 2013

Hello all,

I am using both MATLAB 2011a and MATLAB 2012b and I have large .m files corresponding to the GUI`s that I have created.

Sadly there are a lot of callbacks that were created automatically and that means ugly and big code size.

The function "name_Callback" might be unused is the message

Is there a way to safely remove these functions ? If I just delete them from my .m file will the GUI still work perfectly or is there a slight chance it won't?

Thanks in advance,


  1 Comment

I assume you get this from message from mlint. The only concern is if the function is used, but in a way that mlint cannot detect it. For example as a string in a callback.

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3 Answers

Answer by Azzi Abdelmalek
on 18 Jan 2013
Edited by Azzi Abdelmalek
on 18 Jan 2013

All unused callback functions can be removed


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Answer by Sean de Wolski
on 18 Jan 2013

Yes, you can remove them. Just make sure there is no UItool that requires them first. I would recommend commenting followed by deletion if testing passes.


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Answer by Jurgen
on 18 Jan 2013

Should not be a problem. Be careful that that message will appear on all your callbacks (local functions), even the ones you do use--assuming you used GUIDE to create the GUI.

You may also see a warning if the callback is not also removed from the properties of the respective uicontrol.


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