How to retrieve handles (data) of MATLAB GUI from saved .fig file?

Question

Dominik Mattioli 2018-4-3

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/392262-how-to-retrieve-handles-data-of-matlab-gui-from-saved-fig-file

评论： Walter Roberson 2018-4-3

I need to retrieve about 100 saved GUI's (templated from Guide), so I'd rather not open each file and manually load the data into the workspace. Is there an automated way to load these files and grab the handles.output data?

Folder = uigetdir(''); % Get my folder.
currentDir = dir(Folder);
collectiveData = cell(length(currentDir)-4,1);
for idx = 4:length(currentDir) % Loop through all saved files, skipping "." and ".." and ".DS_Store".
    load(currentDir(idx).name); % Load saved file
    % load handles of figure or something?
    % collectiveData{idx-4} = handles.output; % Ideally do this?
end

I imagine that it would look like that but I can't figure out how to get my gui into the workspace programmatically :(

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Answer 1

Walter Roberson 2018-4-3

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https://ww2.mathworks.cn/matlabcentral/answers/392262-how-to-retrieve-handles-data-of-matlab-gui-from-saved-fig-file#answer_313218

You can openfig() the file which will return the handle to the figure, and you can then guidata() that to retrieve the handles structure.

However in my experience, handles.output typically has nothing useful until the gui has been executed and some step deliberately puts information there.

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Dominik Mattioli 2018-4-3

I ended up doing this, although opening 100+ figures is a little taxing. Thank you for the answer!

Walter Roberson 2018-4-3

在 MATLAB Online 中打开

Folder = uigetdir(''); % Get my folder.
currentDir = dir( Folder);
currentDir([currentDir.isdir]) = [];   %., .. and any other folders
currentdir(ismember({currentDir.name}, {'.DS_Store'})) = [];
filenames = fullfile(currentDir, {currentDir.name});
nfile = length(filenames);
collectiveData = cell(nfile,1);
for idx = 1:nfile
    try
      fig = openfig(filenames{idx});
      figh = guidata(fig);
      collectiveData{idx} = figh.output;
      delete(figh);
    catch
      if isgraphics(figh); delete(figh); end
   end
end