H must be the handle to a figure or figure descendent??

Hi everyone!

My problem is:

I have twos GUIs, GUI1 and GUI2.

GUI2 is sub - GUI of GUI1 that mean when i click on any component in GUI1, GUI2 will be opened

And, i want to use data in GUI1 for GUI2. i use code below in function GUI2_OpeningFcn(hObject, eventdata, handles, varargin) of GUI2

 function GUI2_OpeningFcn(hObject, eventdata, handles, varargin):
hgui1 = findobj('Tag','gui1') % i set 'Tag' for GUI1 is "gui1'
if ~isempty(hgui1)
    % get handles and other user-defined data associated to Gui1
    gui1data = guidata(hgui1); % Store data from hgui1 to gui1data handle
 end
guidata(hObject, handles);

when GUI2 runs, matla returns:

Error using guidata (line 87)
H must be the handle to a figure or figure descendent.

I don't know why?

Could you help me?

Please!

Answer 1

[Walter Roberson]

We have been discussing this in https://www.mathworks.com/matlabcentral/answers/11738-set-handles-of-another-gui#comment_654592 where I am waiting for your response on some debugging steps.

At the moment the difficulty is that your hgui1 is returning multiple figures. I need more information from you to figure out why it is happening.