MATLAB: Error while evaluating UIControl Callback.

help

Hi there, my push button code does not work, it is almost identical to the code of a different pushbutton which is just to open a different GUI.

% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB

% handles    structure with handles and user data (see GUIDATA)

run game.m
% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
run howtoplay.m

Error in

matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)attempt2('pushbutton1_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.

Pushbutton2 works, pushbutton1 does not.

Best Answer

As its help clearly explains, run will run a script, but it will not run a function (e.g. a GUI main file).

https://www.mathworks.com/help/matlab/matlab_prog/scripts-and-functions.html

https://www.mathworks.com/help/matlab/ref/run.html

PS: Avoid GUIDE. Writing your own code is better:

https://www.mathworks.com/matlabcentral/answers/419658-how-to-fix-this-erro-in-guide#comment_614333

https://www.mathworks.com/matlabcentral/answers/434988-error-starting-a-gui

Related Solutions

MATLAB: I have an image which i call using a pushbutton and i want to use the same image in another pushbutton but with a code to alter its composition like imbinarize

See the FAQ: https://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F

MATLAB: Pushbutton in GUI

I do not know whether you refer to the variables which are executed in pushbutton1 to pass it to pushbutton2 or you want to know that pushbutton1 is pushed so you pass something over to pushbutton2. Either way I will provide you simple examples:

To pass the value of a variable calculated in pushbutton1 to pushbutton2, simply use the global command.

function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)

% eventdata  reserved - to be defined in a future version of MATLAB



% handles    structure with handles and user data (see GUIDATA)



global var1;
x = get(input_x.handles,'Value',str2num());
y = get(input_y.handles,'Value',str2num());
var1 = x*y^2;
guidata(hObject,handles);
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)

% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global var1;
disp(var1);
guidata(hObject,handles);

If you would like to pass something from pushbutton1 to pushbutton2 when you know pushbutton1 is pushed, simply get the Value from the pushbutton while globalizing the variables you want to pass:-

function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global var1;
x = get(input_x.handles,'Value',str2num());
y = get(input_y.handles,'Value',str2num());
var1 = x*y^2;
guidata(hObject,handles);
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global var1;
if get(handles.pushbutton1,'Value')
    disp(var1);
end
guidata(hObject,handles);

There you go. Try to phrase your questions in a more detailed manner next time.

Best Answer

Related Solutions

MATLAB: I have an image which i call using a pushbutton and i want to use the same image in another pushbutton but with a code to alter its composition like imbinarize

MATLAB: Pushbutton in GUI

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