Converting the program to the GUI version
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Hi. I have a problem because I've never used GUI before but now I must build GUI for my program. It consist of several stages: input datas from keyboard, generating matrices, two algoritms operating on created matrices. Now I have build something like this:
But, my 'code' to input dates and to making matrix is hooked to button 'Generowanie macierzy' as a function, and now when I want to make new event hook to button 'Macierz kontroli parzystosci' program can not see variable from another function.
How to make the program use data between functions?
Thanks for help
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Answers (1)
Rik
on 14 Nov 2018
There are many ways to share data between callbacks. In the context of GUIs the most often used function is guidata.
2 Comments
Rik
on 15 Nov 2018
You should make sure to save that variable to your handles struct (with guidata), or to save it to the appdata.
In the callback to your first button, save it:
someVariable=rand;
handles.someVariable=someVariable;
guidata(handles.f,handles)
And then you can load it in your second callback:
if hasfield(handles,'someVariable')
someVariable=handles.someVariable;
else
error('someVariable was not assigned, run first button first')
end
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