MATLAB: GUI register

getting startedguiguidematlab gui

Hi,
I'm wandering how come the below code from GUI doesnt create registers that are stored in workplace? What should i do if i wana create the register in workplace via GUI?
function im1_ButtonDownFcn(hObject, eventdata, handles)
  % hObject    handle to im1 (see GCBO)
  % eventdata  reserved - to be defined in a future version of MATLAB
  % handles    structure with handles and user data (see GUIDATA)
  global a;
  [FileName,PathName]= uigetfile(...
      {'*.bmp;*.jpg;*.jpeg;*.tif;*.tiff;*.png','All Image Files(*.bmp,*.jpg,*.jpeg,*.tif,*.tiff,*.png)';...
      '*bmp','bitmap Files (*.bmp)';...
      '*.jpg;*.jpeg','JPEG Files(*.jpg,*.jpeg)';...
      '*.tif;*.tiff','Tiff Files(*.tif,*.tiff)';...
      '*png','PNG Files (*.png)';...
      '*.*','All Files (*.*)'}, ...
      'Pick an image file');
    fullpath = sprintf('%s%s',PathName, FileName);
    a=imread(fullpath);
    imshow(fullpath,'parent',handles.im1);

Best Answer

If the question means that you want to create a variable in the base workspace filled with data from the GUI. Then in a callback for a button, use the ASSIGNIN function with an argument for assignment into the 'base' workspace to create variables in the base workspace with data from the GUI.
Refer to the documentation for ASSIGNIN at the following link: http://www.mathworks.com/help/matlab/ref/assignin.html
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