Hot to set fields from one GUI to another

1 view (last 30 days)
Dear all,
I've been able to transfer variables from one gui to another, there's plenty of stuff around on that.
What I haven't been able to do is to set a field of a GUI from another GUI.
Here's an example: I have two GUIs opened: GUI1 and GUI2. GUI1 has a text box, GUI2 has a push button. Now, when I push the button on GUI2 I would like so set the string in the text box of GUI1 to something.
How can I achieve this?
Thanks!
Lorenzo

Accepted Answer

Mischa Kim
Mischa Kim on 21 Jan 2014
Hello Lorenzo, check out this answer.
  1 Comment
Lorenzo
Lorenzo on 21 Jan 2014
Thanks a lot Mischa. I'm not sure the answer you posted is for the same issue I am having though (but I might be wrong...)
What I need is to have something like this in my sub_GUI: set(mainGui.edit,'String','My string')
Thanks again!
Lorenzo

Sign in to comment.

More Answers (3)

Jan
Jan on 21 Jan 2014
Edited: Jan on 21 Jan 2014
If you can provide variables from one GUI to the other, you can provide the handles struct also. And there you find the handles of the GUI objects. If your GUIs have the tags "GUI1" and "GUI2" (a bad choice, by the way), you can set the text of an object in GUI1 from a callback of GUI2:
function ButtonCallback(hObject, EventData, handles)
% Better do this once only!
gui1H = findobj(allchild(0), 'flat', 'tag', 'GUI1'); % [EDITED]
gui1Handles = guidata(gui1H);
set(gui1Handles.Button1, 'String', 'hello')
Add a TRY/CATCH for a meaningful error message, if the 2nd GUI has been closed before.
  2 Comments
Jan
Jan on 21 Jan 2014
@Lorenzo: This was a typo. Fixed now.

Sign in to comment.


Lorenzo
Lorenzo on 21 Jan 2014
Edited: Lorenzo on 21 Jan 2014
Mischa, Jan,
I found my answer in Mischa's link: in my GUI2 I now have:
function pushbutton1_Callback(hObject, eventdata, handles)
mainGUIdata = guidata(GUI1);
set(mainGUIdata.edit1, 'String', 'Hello')
and this is working.
Now, what is the purpose of
gui2H = findobj(allchild(0), 'flat', 'tag', 'GUI2');
in Jan's reply?
Thanks again for your time.
  4 Comments
Lorenzo
Lorenzo on 22 Jan 2014
Sorry to keep adding stuff... it appears to be working now, I had to use My GUI's tag in the place of 'GUI1', still, I would be interested if there was a more direct way to do this when my gui is started

Sign in to comment.


Lorenzo
Lorenzo on 22 Jan 2014
I guess it doesn't work eventually... when I do guidata(GUI1) it appears to be working but indedd it runs GUI1 from start back again.... Any advise?
Thanks!
  1 Comment
Lorenzo
Lorenzo on 22 Jan 2014
Meaning: as Jan suggested, how can I get the handle of a gui once this is launched? SOmething like:
myGuiHandle=GUI1

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!