After convert gui to exe, creat a new file in a certain path does not work in other computers with exe installed, but locally works. Is the problem because of 'fopen' part ?

 if true
   function save_button_Callback(hObject, eventdata, handles)
% hObject    handle to save_button (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
  handles = guidata(handles.output);
  name = handles.dataname;
  %parameters = [''Date: ''; 'Exposure Time: '; 'Voltage: '; 'Correction Method: '; 'Window Size: '; 'Step Size: '];
  data = num2cell([handles.RS handles.BC]);

items = cellstr(char('Date: ', 'Exposure Time: ', 'Voltage: ', 'xmin: ', 'xmax: ', 'Method: ', 'Window Size: ', 'Step Size: '));
parameters = cellstr(char(handles.date, handles.exposure, handles.voltage, num2str(handles.xminDef), num2str(handles.xmaxDef), ...
  handles.correct_method, num2str(handles.winsize), num2str(handles.stepsize)));

save_data = cell(size(data,1), 4);
save_data(:, 1:2) = data;
save_data(1:length(items), 3) = items;
save_data(1:length(parameters), 4) = parameters;

save_path = get(handles.edit11, 'String');
if(isempty(save_path) == 1)
  str = get(handles.edit1, 'String');
  mkdir(str, 'BaselineCorrected');
  save_path = strcat(str, '/BaselineCorrected');
  set(handles.edit11, 'String', save_path);
end

handles.savepath = get(handles.edit11, 'String');

file = fopen(fullfile(handles.savepath, [name(1:end-4), '_BaselineCorrected.dat']), 'wt+');
formatSpec = '%15.2f %15.4f %15s %15s\r\n';
[nrows,ncols] = size(save_data);
for i = 1:nrows
  fprintf(file, formatSpec, save_data{i,:});
end
fclose(file);
guidata(hObject,handles);

end

[M. A. Hopcroft]

It is difficult to answer without seeing the error message. Add a line to display the output of the "fullfile" command which creates the file path, and verify that the path is correct.

[Yuxiang Gong]

Thanks for your answer. There is no error message. The problem is that the .exe file only works in my computer and I can creat save save a file in any folder, however when it is installed in other computers, this step doesn't work.

[Jan]

"It doesn't work" is too lean to reconsider the problem. Please explain what you observe.

Note that the success of fopen should always be checked:

fid = fopen(...)
if fid == -1, error('A meaningful error message here: ...'); end

[Yuxiang Gong]

As shown in the figure, the edit11 shows the path normally and the path exists. When I click the 'SAVE' button, it simply returns a error sound and nothing happened. This UI in .exe format in my computer works properly, but seems not portable.

Answer 1

[Walter Roberson]

handles.edit11 might be non-empty but with the information given we do not know that it is valid. If it is empty then handles.edit1 will be used to create a directory and path, but we do not know that handles.edit1 is valid.

Your mkdir() should have a try/catch around it in case creating the directory fails.

Your fopen() should have two outputs and you should be checking if the first output is negative and displaying the second output (error message) if so.

[Yuxiang Gong]

Both handles.edit11 and handles.edit1 are valid. I'm able to creat and save files in my computer, however, when I install the .exe file in other computers, this step dose not work.

I think that the writing permission could be the problem, but I'm not sure.

[Walter Roberson]

Then display the error message from the fopen()