I need a help with a GUI i'm trying to create.

Hi everybody

I need some help with a GUI.

It seems to be very simple but it´s my first time so i'm a litle bit lost

starting with the error i get

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)InputUser('pushbutton1_Callback',hObject,eventdata,guidata(hObject)) 
Error while evaluating UIControl Callback.

my GUI is quite simple... i think:

2 popup menus 2 edit boxes 21 check boxes and a pushup button (ok)

so i want to insert values in the edit boxes, select things in the popup menus and check out some boxes ( and use the values as flags)

I tryed to do this but i get the error up there. Is there anybody that can help me?

Thanks in advance

              function varargout = InputUser(varargin)
          % INPUTUSER MATLAB code for InputUser.fig
          %      INPUTUSER, by itself, creates a new INPUTUSER or raises the existing
          %      singleton*.
          %
          %      H = INPUTUSER returns the handle to a new INPUTUSER or the handle to
          %      the existing singleton*.
          %
          %      INPUTUSER('CALLBACK',hObject,eventData,handles,...) calls the local
          %      function named CALLBACK in INPUTUSER.M with the given input arguments.
          %
          %      INPUTUSER('Property','Value',...) creates a new INPUTUSER or raises the
          %      existing singleton*.  Starting from the left, property value pairs are
          %      applied to the GUI before InputUser_OpeningFcn gets called.  An
          %      unrecognized property name or invalid value makes property application
          %      stop.  All inputs are passed to InputUser_OpeningFcn via varargin.
          %
          %      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
          %      instance to run (singleton)".
          %
          % See also: GUIDE, GUIDATA, GUIHANDLES

          % Edit the above text to modify the response to help InputUser

          % Last Modified by GUIDE v2.5 10-Dec-2017 22:20:56

          % Begin initialization code - DO NOT EDIT
          gui_Singleton = 1;
          gui_State = struct('gui_Name',       mfilename, ...
                             'gui_Singleton',  gui_Singleton, ...
                             'gui_OpeningFcn', @InputUser_OpeningFcn, ...
                             'gui_OutputFcn',  @InputUser_OutputFcn, ...
                             'gui_LayoutFcn',  [] , ...
                             'gui_Callback',   []);
          if nargin && ischar(varargin{1})
              gui_State.gui_Callback = str2func(varargin{1});
          end

          if nargout
              [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
          else
              gui_mainfcn(gui_State, varargin{:});
          end
          % End initialization code - DO NOT EDIT

          % --- Executes just before InputUser is made visible.
          function InputUser_OpeningFcn(hObject, eventdata, handles, varargin)
          % This function has no output args, see OutputFcn.
          % hObject    handle to figure
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          % varargin   command line arguments to InputUser (see VARARGIN)

          % Choose default command line output for InputUser
          handles.output = hObject;

          % Update handles structure
          guidata(hObject, handles);

          % UIWAIT makes InputUser wait for user response (see UIRESUME)
          % uiwait(handles.figure1);

          % --- Outputs from this function are returned to the command line.
          function varargout = InputUser_OutputFcn(hObject, eventdata, handles) 
          % varargout  cell array for returning output args (see VARARGOUT);
          % hObject    handle to figure
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)

          % Get default command line output from handles structure
          varargout{1} = handles.output;

          % --- 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)
          chckbox1 = get(handles.checkbox1,'value')
          chckbox2 = get(handles.checkbox2,'value')
          chckbox3 = get(handles.checkbox3,'value')
          chckbox4 = get(handles.checkbox4,'value')
          chckbox5 = get(handles.checkbox5,'value')
          chckbox6 = get(handles.checkbox6,'value')
          chckbox7 = get(handles.checkbox7,'value')
          chckbox8 = get(handles.checkbox8,'value')
          chckbox9 = get(handles.checkbox9,'value')
          chckbox10 = get(handles.checkbox10,'value')
          chckbox11 = get(handles.checkbox11,'value')
          chckbox12 = get(handles.checkbox12,'value')
          chckbox14 = get(handles.checkbox13,'value')
          chckbox14 = get(handles.checkbox14,'value')
          chckbox15 = get(handles.checkbox15,'value')
          chckbox16 = get(handles.checkbox16,'value')
          chckbox17 = get(handles.checkbox17,'value')
          chckbox18 = get(handles.checkbox18,'value')
          chckbox19 = get(handles.checkbox19,'value')
          chckbox20 = get(handles.checkbox20,'value')
          chckbox21 = get(handles.checkbox21,'value')
          chckbox22 = get(handles.checkbox22,'value')
          edt1 = get(handles.edit1,'value')
          edt2 = get(handles.edit2,'value')
          pop1 = get(handles.popupmenu1,'value')
          pop2 = get(handles.popupmenu2,'value')

          % --- Executes on button press in checkbox1.
          function checkbox1_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox1 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fVSabs = get(handles.checkbox1,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox1

          % --- Executes on button press in checkbox2.
          function checkbox2_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox2 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fVStcm = get(handles.checkbox2,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox2

          % --- Executes on button press in checkbox3.
          function checkbox3_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox3 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fWSfl = get(handles.checkbox3,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox3

          % --- Executes on button press in checkbox4.
          function checkbox4_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox4 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fWSfr = get(handles.checkbox4,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox4

          % --- Executes on button press in checkbox5.
          function checkbox5_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox5 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fWSrl = get(handles.checkbox5,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox5

          % --- Executes on button press in checkbox6.
          function checkbox6_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox6 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fWSrr = get(handles.checkbox6,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox6

          % --- Executes on button press in checkbox7.
          function checkbox7_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox7 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fLonA = get(handles.checkbox7,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox7

          % --- Executes on button press in checkbox8.
          function checkbox8_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox8 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fLatA = get(handles.checkbox8,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox8

          % --- Executes on button press in checkbox9.
          function checkbox9_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox9 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fICT = get(handles.checkbox9,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox9

          % --- Executes on button press in checkbox10.
          function checkbox10_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox10 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fAT = get(handles.checkbox10,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox10

          % --- Executes on button press in checkbox11.
          function checkbox11_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox11 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fOdT = get(handles.checkbox11,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox11

          % --- Executes on button press in checkbox12.
          function checkbox12_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox12 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fABS = get(handles.checkbox12,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox12

          % --- Executes on button press in checkbox13.
          function checkbox13_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox13 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fAYC = get(handles.checkbox13,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox13

          % --- Executes on button press in checkbox14.
          function checkbox14_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox14 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fSC = get(handles.checkbox14,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox14

          % --- Executes on button press in checkbox15.
          function checkbox15_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox15 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fTC = get(handles.checkbox15,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox15

          % --- Executes on button press in checkbox16.
          function checkbox16_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox16 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fES = get(handles.checkbox16,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox16

          % --- Executes on button press in checkbox17.
          function checkbox17_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox17 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fWRfl = get(handles.checkbox17,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox17

          % --- Executes on button press in checkbox18.
          function checkbox18_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox18 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fWRfr = get(handles.checkbox18,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox18

          % --- Executes on button press in checkbox19.
          function checkbox19_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox19 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fWRrl = get(handles.checkbox19,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox19

          % --- Executes on button press in checkbox20.
          function checkbox20_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox20 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fWRrr = get(handles.checkbox20,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox20

          % --- Executes on button press in checkbox21.
          function checkbox21_Callback(hObject, eventdata, handles)
          % hObject    handle to checkbox21 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          fWR = get(handles.checkbox21,'Value');
          % Hint: get(hObject,'Value') returns toggle state of checkbox21

          % --- Executes on selection change in popupmenu2.
          function popupmenu2_Callback(hObject, eventdata, handles)
          % hObject    handle to popupmenu2 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          vpm2 = get(handles.popupmenu2,'Value'); %get currently selected option from menu
          if vpm2 == 1
              RCh=1
          elseif vpm2 == 2
              RCh=2
          end
          % Hints: contents = cellstr(get(hObject,'String')) returns popupmenu2 contents as cell array
          %        contents{get(hObject,'Value')} returns selected item from popupmenu2

          % --- Executes during object creation, after setting all properties.
          function popupmenu2_CreateFcn(hObject, eventdata, handles)
          % hObject    handle to popupmenu2 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    empty - handles not created until after all CreateFcns called

          % Hint: popupmenu controls usually have a white background on Windows.
          %       See ISPC and COMPUTER.
          if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
              set(hObject,'BackgroundColor','white');
          end

          % --- Executes on selection change in popupmenu1.
          function popupmenu1_Callback(hObject, eventdata, handles)
          % hObject    handle to popupmenu1 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          vpm1 = get(handles.popupmenu1,'Value'); %get currently selected option from menu
          if vpm1 == 1
              RCh=1
          elseif vpm1 == 2
              RCh=2
          end
          % Hints: contents = cellstr(get(hObject,'String')) returns popupmenu1 contents as cell array
          %        contents{get(hObject,'Value')} returns selected item from popupmenu1

          % --- Executes during object creation, after setting all properties.
          function popupmenu1_CreateFcn(hObject, eventdata, handles)
          % hObject    handle to popupmenu1 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    empty - handles not created until after all CreateFcns called

          % Hint: popupmenu controls usually have a white background on Windows.
          %       See ISPC and COMPUTER.
          if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
              set(hObject,'BackgroundColor','white');
          end

          function edit1_Callback(hObject, eventdata, handles)
          % hObject    handle to edit1 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          samplingtime = get(handles.edit1,'Value');
          % Hints: get(hObject,'String') returns contents of edit1 as text
          %        str2double(get(hObject,'String')) returns contents of edit1 as a double

          % --- Executes during object creation, after setting all properties.
          function edit1_CreateFcn(hObject, eventdata, handles)
          % hObject    handle to edit1 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    empty - handles not created until after all CreateFcns called

          % Hint: edit controls usually have a white background on Windows.
          %       See ISPC and COMPUTER.
          if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
              set(hObject,'BackgroundColor','white');
          end

          function edit2_Callback(hObject, eventdata, handles)
          % hObject    handle to edit2 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    structure with handles and user data (see GUIDATA)
          samplefreq = get(handles.edit2,'Value'); 
          %get currently selected option from menu

          % Hints: get(hObject,'String') returns contents of edit2 as text
          %        str2double(get(hObject,'String')) returns contents of edit2 as a double

          % --- Executes during object creation, after setting all properties.
          function edit2_CreateFcn(hObject, eventdata, handles)
          % hObject    handle to edit2 (see GCBO)
          % eventdata  reserved - to be defined in a future version of MATLAB
          % handles    empty - handles not created until after all CreateFcns called

          % Hint: edit controls usually have a white background on Windows.
          %       See ISPC and COMPUTER.
          if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
              set(hObject,'BackgroundColor','white');
          end

[Walter Roberson]

We need to see the entire error message, everything in red, or we need the .fig file along with the .m file so we can test it ourselves (and we need a list of instructions on how to reproduce the problem.)

Note: you appear to be fetching the 'value' property from some uicontrol style 'edit'. You probably want the 'string' property instead.

Question: so, you fetch all of those properties in the pushbutton callback, but what are you going to do with the values? You just fetch them now, and then return.

[Image Analyst]

plus, ALL your checkbox callbacks are useless. The get a value into a variable, and that variable is then lost forever when you exit the callback. Regardless, they aren't needed and you can have blank callbacks for the checkboxes. Anytime you need a checkbox value, you can get it from any function that has access to handles.

[José Sanches]

Thanks for the answers. I think I have seen what the problem might be. Ok to clarify the original question I need these values to use them in a script. So I start the script, I choose a channel ( popmenu1) and I want to save the option ( ch1 or 2) in a variable Rch to use later. Same thing with pop-up menu 2. I need the values the user enter in the edit boxes. One as a sampling time and the other as samplefreq. And then I need to know the state of each check box ( check or not). Thanks again

[Image Analyst]

If you want to save something, use save() to save it to a .mat file. But I'd recommend you not use a script and use a function instead and pass the values you need in the function via the input argument list of the function.

[José Sanches]

Can you please give me an example? Because I have already a script with everything I want to do ( i mean where I am going to use all the values from the check boxes and so). The thing is I just don't know how to save these values in an array so I can use them in my script. I know I am using these functions ( callbacks) wrong but I need some help to understand the concept. This can be very easy to you but it is my first time with this. Thanks

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F