How to display values of axes after zooming in GUI at the moment of zooming

Dear all, I'm struggling with zooming in in my GUI. I have an image and it's important for a user to be able to have the exact values of XLims after zooming in. I created an edit text field where this information is displayed ("Phase values"), but by far I only managed to have these values displayed after I press again on my Zoom In button.

My question is: how to code it to have these values in my text field at the moment of zooming ?

Here is a part of code which I use:

function ZoomBtn_Callback(hObject, eventdata, handles)
zoom(handles.Plot1_ax)
displayZoomXLims_txt(handles)

function displayZoomXLims_txt(handles)
XLims_values = sprintf(' %s ', num2str(handles.Plot1_ax.XLim(1)), num2str(handles.Plot1_ax.XLim(2)));
set(handles.XLims_txt, 'String', XLims_values);

Thank you in advance for any tips.

I attach an image how it looks like.

[Adam]

If you look at

doc zoom

there is a section on the ActionPostCallback which should work for what you want.

e.g.

zoomInfo = zoom( hFig );
zoomInfo.ActionPostCallback = @( ) displayZoomXLims_txt(handles);

or something similar, where hFig is your figure handle

[A. Wozniak]

Thank you Adam. Yes, I dug in the zoom doc and found a solution. This works perfectly (for anyone who can have the same problem in future):

function ZoomBtn_Callback(hObject, eventdata, handles)

h = zoom(handles.Plot1_ax);

set(h, 'ActionPostCallback', @zoom_callback);
% h.ActionPostCallback = @zoom_callback;
h.Enable = 'on';
zoom_handl = guidata(handles.Plot1_ax);  % pass all handles to zoom_callback function
guidata(handles.Plot1_ax, zoom_handl);  % pass all handles to zoom_callback function

function zoom_callback(hObject, eventdata)
newLimX = eventdata.Axes.XLim;
newLimY = eventdata.Axes.YLim;

XLims_values = sprintf('[%.1f   %.1f] Hz', newLimX);
YLims_values = sprintf('[%.1f   %.1f] Hz', newLimY);

fprintf('New phase values: [%.1f %.1f] \n', newLimX);
fprintf('New amplitude values: [%.1f %.1f] \n', newLimY);

h = guidata(hObject);  % get the handles of the maingui
set(h.XLims_txt, 'String', XLims_values);
set(h.YLims_txt, 'String', YLims_values);