End Guide GUI with Enter Button

Hello!

I have a simple GUIDE GUI that has four edit boxes to gather information, and a "Done" button at the bottom. I use uicontrol(handles.editbox1) to put the cursor at the top editbox, and the user can Tab down through the boxes and then to the Done button. At that point, the user can exit by clicking on the Done button, but it would be much cleaner to have them just press "Enter".

Is this properly done in the KeyPressFcn callback for handles.done_button? And do you just see if getkey == 13 in eventdata? I am not sure where this is documented!

Thanks!

Answer 1

[Walter Roberson]

Yes, keypressfcn is suitable for this. The eventdata will have a structure for which the field Key will contain 'return' in this case.

[Douglas Anderson]

Thank you, Walter.

I am used to using the handles structure to pass information between functions, but not to eventdata. How do you get the information that they key has been pressed into the KeyPressFcn, and then from the KeyPressFcn associated with the done_button to the done_button Callback that then closes things out?

Thanks. By the way your help is so good -- have you written a MATLAB book?

[Walter Roberson]

Example:

but = uicontrol('style','push', 'String', 'Type here', 'keypressfcn', @(hObject, eventdata) disp(eventdata.Key))

In your situation, I would suggest:

function done_Callback(hObject, eventdata, handles)
   finish_up(hObject, eventdata, handles);

function done_KeyPressFcn(hObject, eventdata, handles)
  if strcmp(eventdata.Key, 'return')
   finish_up(hObject, eventdata, handles);
  end

where finish_up contains whatever content you would normally have put directly into done_Callback

[Douglas Anderson]

Perfect! Thank you!