How to break FOR-loop if "progressbar" is closed

I have an m-file which makes a lot of Matrix calculation and in another m-file I have implemented a progressbar, to keep track of the calculations. I have a function so if the progressbar is closed the calculations stops:

function closeBar(src,evnt)

|selection = questdlg('Do you want to stop this process?',...
                     'Stop process',...
                     'Yes','No','Yes');

switch selection,

case 'Yes',
    delete(gcf)

case 'No'
     return

end

How do I break the FOR-loop in the other m-file, if case "Yes" is fulfilled?

Many thanks!

Answer 1

[Robert Cumming]

Below is an example of how to do it using two functions and a dialog which is created where you can interrupt - I'm sure you could take this as a skeleton and modify to suit.

EDIT:

function FUNCTION_IN_FILE1
  h = dialog ( 'WindowStyle', 'Normal', 'position', [400 400 100 100], 'visible', 'off' );
  FILE2_StartGuiForInterruption ( h );
  while true
    pause ( 0.1 );
    disp ( 'in loop doing calculations' );
    if ishandle ( h ) == false
      break
    end
  end
  disp ( 'finished' );
end

function FILE2_StartGuiForInterruption ( parent )
  uicontrol ( 'parent', parent, 'style', 'pushbutton', 'Callback', {@FILE2_STOP}, 'position', [20 20 60 60], 'string', 'stop', 'backgroundcolor', 'red' );
  set ( parent, 'visible', 'on' );

end
function FILE2_STOP ( obj, event )
  close ( get ( obj, 'parent' ) );
end

[Nicholai]

The problem is a close function doesn't work, since I need it to stop some calculations in another m-file. I got "exit" to work, but since this statement closes the whole Matlab application, I need something that just terminates all calculations in all m-files in my workspace... Thanks

[Robert Cumming]

Why does close not work?

I've updated the function above - It can work in the say I stated, and I cant see why you state close doesn't work.

The thing I've shown you is a way to have an m file stop by pressing a button which comes from another m file.

The trick is to have the m file you want to stop know the handle to the GUI - that way it can check if the GUI has been closed.