Use guidata(hObject, handles) for non-callback functions?

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I am in the process of writing a shared function, say "function sharingiscaring()" to used for different CallbackFcns.
I realize this shared function "function sharingiscaring()" will generate some cell arrays, say "care1", "care2", that I would like to use in other callback functions.
In this case, is it necessary to add in commands such as
handles.care1=care1;
handles.care2=care2;
and also end the "function sharingiscaring()" with
guidata(hObject, handles)
like what is usually done for callback functions?
I will appreciate any help since I just started learning GUI and would like to make sure my code is written correctly...Thank you again for reading!

Accepted Answer

Walter Roberson
Walter Roberson on 1 Aug 2016
No, that is not needed. You can return the values as outputs from the funtion:
function [care1, care2] = sharingiscaring()
...

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