guide and waitfor selectionchangefcn

Hi. In my GUIDE gui, I have a "RUN" push button, whose callback function runs through a block of conditional statements to check that the entered inputs are valid. For some bad inputs, I generate an error message, but for others, just a warning. (this is done by updating the string of a listbox).

What I would like to do is make visible a panel that asks if the person wishes to ignore the warnings and proceed anyways. This panel has a button group with two push buttons labeled "yes" and "no"

Is there a way at the end of the "RUN" push button callback function to do something like the following:

if ~isempty(warning_msg)
    set(handles.warning_panel,'Visible','on')
    ignore_warning = warning_buttongroup_SelectionChangeFcn
end

This checks if there are any warning messages, if yes, it makes visible the panel with the question and push button. The 3rd statemenet, however, I don't believe will work. Is there a way I can make it wait until a selectionchange is detected?

Answer 1

[Walter Roberson]

ignore_warning = false;
if ~isempty(warning_msg)
  set(handles.warning_panel,'Visible','on')
  waitfor(handles.warning_buttongroup, 'SelectedObject');
  if ishandle(handles.warning_buttongroup)  %ensure not deleted
    whichobject = get(handles.warning_buttongroup, 'SelectedObject');
    ignore_warning = strcmp(get(whichObject,'Tag'),'Yes'); %or the like
  end
end

[Leor Greenberger]

This worked perfectly! I knew I had to use the waitfor function, but I wasn't sure how to make it work. I also knew about the selectedobject property, but didn't think about using the waitfor on that. Oh well. I also just spent an hour trying to figure out why it was still not working even the code looks correct. Problem: I was using push buttons instead of toggle buttons!

[Walter Roberson]

uibuttongroups aren't supposed to work on push buttons... I'm surprised it didn't complain.