Calling a function without input arguments in Matlab

Question

I am new to Matlab, I want to call a function in different GUI without sending any arguments( from one GUI to another).

Example:

gui1.m

function some_ui_OpeningFun(hObject, eventdata, handles, varargin)

a = 10;
setappdata(0,'a',a);

gui2('pushbutton1_Callback'...) %<- to call the function in the second gui

handles.output = hObject;

guidata(hObject, handles);

gui2.m

function pushbutton1_Callback(hObject, eventdata, handles)

b = getappdata(0,'a');
disp(a);

so i want to call the function pushbutton1_Callback from gui2.m.

I have tried using gui2('pushbutton1_callback',handles,.....) which was give in the GUID comments. But could't get it.

Can anyone tell me how to do so?

thanks in advance.

If you want a function to be accessible from outside, you should place it in its own file and give the file the same name as the function, in your example pushbutton1_Callback.m. — jadhachem
– jadhachem, Commented Feb 9, 2015 at 4:14
@jadhachem both example above are made from GUIDE, this two are only the examples. How would i do that if i call it from a different GUI. you mean to say these two are function which are NOT. — Akshay
– Akshay, Commented Feb 9, 2015 at 4:21

Jens Boldsen · Accepted Answer · 2015-02-09 14:38:38Z

0

If you want to access a GUI (gui2) from another GUI (gui1), you need some reference to gui2 in gui1, this can be done in several ways; for example by requiring that the figure handle to the gui2-object if given as an input parameter when you run gui1 (EDIT: when you run gui1 you should run it with a parameter for example like this gui1(f), where f is the figure handle for a gui2 figure - you can get this figure handle by running gui2 like this: f = gui2) e.g. add the following line after the function some_ui_OpeningFun(hObject, eventdata, handles, varargin)-line:

handles.othergui = varargin{1};

Then you can call the functions of the other gui as follows:

otherhandles = guidata(handles.othergui);
gui2('pushbutton1_Callback',otherhandles.pushbutton1,eventdata,otherhandles);

I hope this answers your question!

edited Feb 9, 2015 at 14:38

answered Feb 9, 2015 at 8:23

Jens Boldsen

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6 Comments

Akshay Over a year ago

Nope, not working. I tried doing that but i get Index exceeds matrix dimensions.

Error in Neucube>Neucube_OpeningFcn (line 104) handles.othergui = varargin{1};  Error in gui_mainfcn (line 221)     feval(gui_State.gui_OpeningFcn,     gui_hFigure, [], guidata(gui_hFigure),     varargin{:});  Error in Neucube (line 49)     gui_mainfcn(gui_State, varargin{:});

Akshay Over a year ago

I tried other ways of it by doing Neucube('pushbutton5_Callback',hObject, eventdata, handles); Now the problem is that in Neucube under pushbutton5_Callback i have predict_time_length = str2double(get(handles.predict_time_length,'string')); which gets the value from gui text box. but here i get an error after I call it from diff GUI as follows

Akshay Over a year ago

Reference to non-existent field 'predict_time_length'. Error in Neucube>pushbutton5_Callback (line 136) predict_time_length = str2double(get(handles.predict_time_length,'string')); % training persentage Error in gui_mainfcn (line 96) feval(varargin{:}); Error in Neucube (line 49) gui_mainfcn(gui_State, varargin{:}); Error in training>stop_training_Callback (line 234) Neucube('pushbutton5_Callback',hObject, eventdata, handles); Error in gui_mainfcn (line 96) feval(varargin{:}); Error in training (line 42) gui_mainfcn(gui_State, varargin{:}); Error in

Akshay Over a year ago

@(hObject,eventdata)training('stop_training_Callback',hObject,eventdata,guidata(hObject)) Error while evaluating uicontrol Callback

Akshay Over a year ago

I have asked the same question here stackoverflow.com/questions/28407121/…

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