How exactly the 'Enable' property works for GUI elements (ans is it bugged??)

I experienced the following behavior. Created a push button (we talk about uifigure) set its 'Enable'='off' attached a 'ButtonPushedFcn' to it.

So far so good, then i proceed to play around with my UI the button is disabled and grayed out, I click on it and nothing happens (as it should)

Then I proceed to click it again multiple times in quick succession, nothing happens (again as it should) then suddenly my callback function is called!!!!!!!!

I can reproduce this behavior and it is really confuses me, please let me know if you have any advice on the matter.

For refference:

matlab.ui.control.Button('Parent',  myHandle , 'BackgroundColor', myBackground,...
                    'Position', myPosition ,'Enable','off', 'Text', myText,...                     
                    'HorizontalAlignment', 'center','FontName', 'arial','FontWeight', 'bold','FontSize', 11,...
                    'ButtonPushedFcn', @(src,event) myCallbackFcn(app,src,event,index));

function myCallbackFcn(app,src,event,index)
%%%%
end

[George Baltas]

Update. After further investigating this, it turns out that the edges of the push button are the ones generating an event even when the 'Enable' property is set to 'off', the "body" of the button behaves as expected

[Cris LaPierre]

What version of MATLAB are you using?

Can you share the rest of your code? At least enough so that the gui will appear and can be tested?

[George Baltas]

classdef test
    properties
        myFigure
    end
        
    
    methods
        function app=test
            app.myFigure=uifigure;
            matlab.ui.control.Button('Parent',app.myFigure,'Enable','off','ButtonPushedFcn', @(src,event) myCallbackFcn(app,src,event));
        end
    end
end

function myCallbackFcn(app,src,event)

disp('hello world')

end

[George Baltas]

I am using 2018a

Run the above as is, I click at the edge of the grayed out Button and I can call the callback function. I click at the body of the button and nothing happens. Is this how it is supposed to be or I am missing something. Thank you in advance.

Answer 1

[George Baltas]

This bug got fixed in 2018b