Good day! I'm tryin to make a simple multiplyer that would take 2 input values,sum them up and multiply the sum by 2. The gui has 2 edit windows and 1 push button to request the answer at the static text window. The program works only for the first time,as soon as I try to change the previously input values, it gives me an error in the command window and won't work. I have also changed the string in the edit boxes to 0. Those 0 are string values,not actual values. I tryed the following script to turn them into values,but it just changes them permamently.
% --- Executes just before EditBoxTrial is made visible.
function EditBoxTrial_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 EditBoxTrial (see VARARGIN)
% Choose default command line output for EditBoxTrial
handles.output = hObject;num = 0;handles.edit1 = num;handles.edit2 = num;% Update handles structure
guidata(hObject, handles);% UIWAIT makes EditBoxTrial wait for user response (see UIRESUME)
% uiwait(handles.figure1);
How do I fix two of those problems? The full program code is
function varargout = EditBoxTrial(varargin)% EDITBOXTRIAL MATLAB code for EditBoxTrial.fig
% EDITBOXTRIAL, by itself, creates a new EDITBOXTRIAL or raises the existing
% singleton*.
%
% H = EDITBOXTRIAL returns the handle to a new EDITBOXTRIAL or the handle to
% the existing singleton*.
%% EDITBOXTRIAL('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in EDITBOXTRIAL.M with the given input arguments.
%% EDITBOXTRIAL('Property','Value',...) creates a new EDITBOXTRIAL or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before EditBoxTrial_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to EditBoxTrial_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 EditBoxTrial
% Last Modified by GUIDE v2.5 10-Jul-2012 09:24:44
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @EditBoxTrial_OpeningFcn, ... 'gui_OutputFcn', @EditBoxTrial_OutputFcn, ... 'gui_LayoutFcn', [] , ... 'gui_Callback', []);if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func(varargin{1});endif 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 EditBoxTrial is made visible.function EditBoxTrial_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 EditBoxTrial (see VARARGIN)% Choose default command line output for EditBoxTrialhandles.output = hObject;% Update handles structureguidata(hObject, handles);% UIWAIT makes EditBoxTrial wait for user response (see UIRESUME)% uiwait(handles.figure1);% --- Outputs from this function are returned to the command line.
function varargout = EditBoxTrial_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;function edit_box1_Callback(hObject, eventdata, handles)num=str2double(get(handles.edit_box1, 'String'));handles.edit_box1=num;guidata(hObject,handles);% hObject handle to edit_box1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of edit_box1 as text
% str2double(get(hObject,'String')) returns contents of edit_box1 as a double
% --- Executes during object creation, after setting all properties.
function edit_box1_CreateFcn(hObject, eventdata, handles)% hObject handle to edit_box1 (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');endfunction edit_box2_Callback(hObject, eventdata, handles)num=str2double(get(handles.edit_box2,'String'));handles.edit_box2=num;guidata(hObject,handles);% hObject handle to edit_box2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of edit_box2 as text
% str2double(get(hObject,'String')) returns contents of edit_box2 as a double
% --- Executes during object creation, after setting all properties.
function edit_box2_CreateFcn(hObject, eventdata, handles)% hObject handle to edit_box2 (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% --- Executes on button press in push_button1.
function push_button1_Callback(hObject, eventdata, handles)c=(handles.edit_box1+handles.edit_box2)*2;str=sprintf('Answer is: %d',c);set (handles.static_text, 'String',str);% hObject handle to push_button1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)
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