About passing the parameter

Hi, I would appreciate if someone answer me this question.

I am developing the GUI which calls one function called fun1.

Fun1 will get one of the value from uicontrol, say variable a.

But I have a another function called fun2.

I tried to use a in fun2 but I got the error, structure is like this

Func_main()

Uicontrol(...,callback,"fun1") Fun1() a = get.value End

Fun2() Disp(a); End

End

How can I pass the parameter from one function to another?

Sorry for so naive question but thanks for your help

Answer 1

[Jan]

You can store the value in the "handles" struct:

function Main
hFigure = figure;
uicontrol(..., 'Callback', @Callback1);
uicontrol(..., 'Callback', @Callback2);
handles.a = [];  % Default value
guidata(hFigure, handles);    % Store handles struct in the figure
end

function Callback1(hObject, EventData)
handles = guidata(hObject);   % Get struct from figure
handles.a = get_value()       % Insert value
guidata(hObject, handles);    % Put struct back to figure
end

function Callback2(hObject, EventData)
handles = guidata(hObject);   % Get struct from figure
disp(handles.a)
end

This is a frequently asked question, I esitmate 2 times per day. Search in the forum for "share data between callbacks".

[Joseph Cheng]

Ah... I always forget that this works outside of GUIDE. (deleted my submission).

[k38]

Hi Jan, thank you very much for your answer, I was working on the project and I struggled with this but you really saved me!

Once again, thank you!!