Pause button for GUI

Hi,

My gui runs a plotting fucntion i created for some txt data. with a start, pause and stop button, i dont know how to make the while loop for it to stop but,

I am using the following for a pause button, it works , however when i press it it continues to run the called function on the actual gui. Is there a way to stop that?

% --- Executes on button press in Pause.
function Pause_Callback(hObject, eventdata, handles)
% hObject    handle to Pause (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
set(gcbo,'userdata',1)



% --- Executes on key press with focus on Start and none of its controls.
function Start_KeyPressFcn(hObject, eventdata, handles)
% hObject    handle to Start (see GCBO)
% eventdata  structure with the following fields (see MATLAB.UI.CONTROL.UICONTROL)
%	Key: name of the key that was pressed, in lower case
%	Character: character interpretation of the key(s) that was pressed
%	Modifier: name(s) of the modifier key(s) (i.e., control, shift) pressed
% handles    structure with handles and user data (see GUIDATA)

% function browse_data()
% [filename, pathname] = uigetfile('.txt');
% set( yourEditHandle, 'String', filename);
%
i=1;
while i
    drawnow
    if get(handlepushbutton,'userdata'); % stop condition
        break;
    end
    i=i+1;
    
end

[Juan Palacios]

this is what i mean by running in the GUI

[Alex Mcaulley]

take a look to:

waitfor function

[Juan Palacios]

where would i put this? in my while loop? and would i give it to wait for my executed function?

Answer 1

[Alex Mcaulley]

Following your code, for example (The property 'Interruptible' of the start button must be set to 'on'):

% --- Executes on button press in Pause.
function Pause_Callback(hObject, eventdata, handles)
% hObject    handle to Pause (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
if isempty(get(hObject,'UserData'))
    set(hObject,'UserData',1)
else
    set(hObject,'UserData',~get(hObject,'UserData'))
end
guidata(hObject, handles);

% --- Executes on key press with focus on Start and none of its controls.
function Start_KeyPressFcn(hObject, eventdata, handles)
% hObject    handle to Start (see GCBO)
% eventdata  structure with the following fields (see MATLAB.UI.CONTROL.UICONTROL)
%	Key: name of the key that was pressed, in lower case
%	Character: character interpretation of the key(s) that was pressed
%	Modifier: name(s) of the modifier key(s) (i.e., control, shift) pressed
% handles    structure with handles and user data (see GUIDATA)
% function browse_data()
% [filename, pathname] = uigetfile('.txt');
% set( yourEditHandle, 'String', filename);
%
i=1;
while i
    drawnow
    if get(handles.waitPushButton,'UserData'); % stop condition
        waitfor(handles.waitPushButton,'Value',0) %Waits for another click on wait pushbutton
    end
    i=i+1;
    
end