% --- Executes during object creation, after setting all properties.

function slider1_CreateFcn(hObject, eventdata, handles)

    % hObject    handle to slider1 (see GCBO)

    % eventdata  reserved - to be defined in a future version of MATLAB

    % handles    empty - handles not created until after all CreateFcns called

    % Hint: slider controls usually have a light gray background.

    if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

        set(hObject,'BackgroundColor',[.9 .9 .9]);

    end

    % Add the slider information the Handles

    handles.Threshold_Slider    = hObject;   

    % Default value

    hObject.Value               = 1;

    % Monitor these variables to run time intesive operations 

    handles.Previous_Threshold  = nan;

    handles.Current_Threshold   = hObject.Value;

    % Update handles structure

    guidata(hObject, handles);

end