GUI Warning before closed

Hello,

would like to have a warning ( " Data saved yes no") before my GUI (made with guide) is closed. I can't figure out where to put that code. Must be something in the closing function made automatically by the GUI guide??

Thank you

Answer 1

[Valentino]

My solution: write this in the second function written by guide (my_gui_OpeningFcn):

     set(handles.figure1,'CloseRequestFcn',@closeGUI;

Then write an extra function like this:

     function closeGUI(hObject, eventdata, handles)
       selection = questdlg(Close MyGUI?', ...
  'Warning', ...
  'Yes','No','Yes');

     switch selection
         case 'Yes'
           delete(gcf)
        case 'No'
           return
        end

Answer 2

[Image Analyst]

I don't think the closing function or output function will always be executed, especially if they click on the X in the title bar. To make sure your code get executed even if they try to close the window by clicking on the x in the title bar, you need to put your code into the figMainWindow_CloseRequestFcn() function.

[Valentino]

Thank you for your answer.I'm unterstanding tis correct, i have to write a new function figmy_own_GUI_CloseRequestFcn()? How do i call the function?

if true
  function figmy_own_GUI_CloseRequestFcn(hObject, eventdata, handles)
warndlg('Pressing OK will clear memory','!! Warning !!')
end

Answer 3

[Maha]

Having the same issue. I unfortunately close figures and my GUI at the same time quite often without paying attention.

Any chance to get a warning when we try to close Matlab ? Like some other programs do with "Are you sure you want to close XXX ?"

[Nilesh Sahu]

Click on Home -> Preferences -> General -> Confirmation Dialogs -> Check on Confirm before exiting Matlab.

[Crish]

Is this also applicable in the apo designer?