Retrieve data from a guidata from another file

I have a counter that increment each time i click on a pushbutton and the value is stored in a guidata which works it gives me the wanted value. (The function that increments is in the same file as the gui)

But i want to get the value form the guidata in another file as a condifition for a if but i always return me this error :

Undefined variable "handles" or class "handles.X".

Error in kgexec4n (line 67)
 if get(guidata(hf,handles.X),'Value')==1
 
Error while evaluating uicontrol Callback

and here is the gui code with the function and the pushbutton

function h0=kgui4n
%KGUI4N construction de la boite de dialogue pour KGEXEC4N
%CAVIAR2, © ALSTOM + OL 1999/12-2003/03
blanc=[1 1 1];
gris=blanc*0.75;
%figure
h0=figure(...
 'Units','characters',...
 'DefaultUicontrolUnits','characters',...
 'Color',gris,...
 'DefaultUicontrolBackgroundColor',gris,...
 'HandleVisibility','callback',...
 'IntegerHandle','off',...
 'MenuBar','none',...
 'Name',ch00{lg},...
 'NumberTitle','off',...
 'Position',[100 30 110 25],...
 'Resize','on',...
 'Tag','NormeDlg',...
 'WindowStyle','modal',...
 'ToolBar','none');
%% Pushbutton
handles.X = 0;
handles.button = uicontrol(h0,...
 'Callback',@buttonCB,...
 'Position',[10 0.5 9 2],...
 'String','count',...
 'Tag','count');
guidata(h0, handles);

%%%%%%%%%%%%%
function buttonCB(ButtonH, EventData)
handles = guidata(ButtonH);
handles.X = handles.X + 1;
if handles.X > 3
   handles.X = 0
end
guidata(ButtonH, handles)

I would like to know how i could get the value of handles.X which is stored in the guidata and use it in another file ?

Answer 1

[Walter Roberson]

handles_hf = guidata(hf);
if handles_hf.X.Value == 1

[Ali]

It doesn't work but this time because when i write

handles_hf = guidata(hf);

it says that hf is undefined as a function or variable or it is set in the beginning of the function as

hf = kgui4n %%%kgui4n is the gui 

[Ali]

nevermind it still gives me the same error as the begining

Attempt to reference field of non-structure array.

Error in kgexec4n (line 94)
 if handles_hf.X.Value == 1
 
Error while evaluating uicontrol Callback

i don't really understand why as i my hf is well defined could it be that because in the function that increment the counter i use guidata(ButtonH,handles) and not h0 as h0=figure?

[Walter Roberson]

Your handles.X is just a numeric variable, not a graphics object that you can get() a property of.

hf = kgui4n;

handles_hf = guidata(hf);

if handles_hf.X == 1
    disp('X is true')
else
    disp('X is false')
end

X is false

function h0=kgui4n
    %KGUI4N construction de la boite de dialogue pour KGEXEC4N
    %CAVIAR2, © ALSTOM + OL 1999/12-2003/03
    blanc=[1 1 1];
    gris=blanc*0.75;
    lg = 1; ch00{lg} = 'test gui';
    
    %figure
    h0=figure(...
     'Units','characters',...
     'DefaultUicontrolUnits','characters',...
     'Color',gris,...
     'DefaultUicontrolBackgroundColor',gris,...
     'HandleVisibility','callback',...
     'IntegerHandle','off',...
     'MenuBar','none',...
     'Name',ch00{lg},...
     'NumberTitle','off',...
     'Position',[100 30 110 25],...
     'Resize','on',...
     'Tag','NormeDlg',...
     'WindowStyle','modal',...
     'ToolBar','none');
    %% Pushbutton
    handles.X = 0;
    handles.button = uicontrol(h0,...
     'Callback',@buttonCB,...
     'Position',[10 0.5 9 2],...
     'String','count',...
     'Tag','count');
    guidata(h0, handles);
end

%%%%%%%%%%%%%
function buttonCB(ButtonH, EventData)
    handles = guidata(ButtonH);
    handles.X = handles.X + 1;
    if handles.X > 3
       handles.X = 0
    end
    guidata(ButtonH, handles)
end

[Ali]

Your answer works when i try to get the data from the guidate in the file where my gui is which is kgui4n.

But what i am trying to do is get the data i am using the guidata hf in another file, there might have been an misunderstanding on that part. When i try to use the guidata in another file it doesn't work and doesn't recognize hf even if i associate it with the gui.

[Walter Roberson]

You need some way of getting the handle of the figure created by kgui4n . For example you might do

hf = findobj(groot, 'type', 'figure', 'tag', 'NormeDlg');
handles_hf = guidata(hf);
if handles_hf.X == 1
    etc
end

[Ali]

thank you it made the trick