Click escape to stop my MouseDownfcn in the GUI?

When you select the "move" button, my GUI sees if the cursor is on my axes and when you press it, you can move the graph in it. What I want is that when the escape button is pressed, the graphic cannot be moved. That is, I want to disable this function but when the button is pressed again it will work again.

Here is the pushbutton

function move_Callback(hObject, eventdata, handles)
% hObject    handle to mover_mano (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
hold(handles.oxi_Plot,'on');
linkaxes([handles.oxi_Plot handles.TOI_Plot],'x');
if hObject.Value == 1
set(handles.figure1, ...
    'WindowButtonDownFcn',   @mouseDownCallback, ...
    'WindowButtonUpFcn',     @mouseUpCallback,   ...
    'WindowButtonMotionFcn', @mouseMotionCallback); 

end

Here is where I want to write the code when escape function is pressed

function figure1_WindowKeyPressFcn(hObject, eventdata, handles)
% hObject    handle to figure1 (see GCBO)
% eventdata  structure with the following fields (see MATLAB.UI.FIGURE)
%	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)
switch eventdata.Key 
    case 'escape' 
        disp('Pressed ESC-key');
        
end

Answer 1

[Guillaume]

Probably, the simplest thing is to disable whichever callback you don't want to execute once escape is pressed, so in the WindowKeyPressFcn:

switch eventdata.Key 
    case 'escape' 
        set(handles.figure1, 'WindowButtonMotionFcn', []);  %disable motion callback

Of course, you'll need to set it back once you want it to be enabled again.

Another option is to add a flag to your handles structure that you set/unset on escape and check for in the callback:

%handles.domove is a flag that you created on GUI construction

%in WindowKeyPressFcn
switch eventdata.Key 
    case 'escape' 
        set(handles.domove, false);  %disable motion callback
        guidata(hObject, handles);  %don't forget to save handles
        
%in callback that can be enabled/disabled, e.g WindowButtonMotionFcn
if handles.domove
    %normal code
end  %else do nothing