How to disable closable(X) button in an extended screen?

How to disable closable(X) button in an extended screen ???
I am not able to find the button in its xml page…

Thanks :slight_smile:

Hi,

You can do this using API:

public class ClientBrowse extends StandardLookup<Client> {
    @Subscribe
    private void onInit(InitEvent event) {
        getWindow().setCloseable(false);
    }
}

I am not able to add this in my extended blank screen page. The getwindow method is not available in screen.java .

You can disable close button only since version 7 of the platform.