Using Qt Designer I genereated 3 buttons. And I adjusted each button's size. After that, I applied a vertical layout to 3 buttons. But as soon as I applied the vertical layout the size of each button was changed to a default size. And I can not find any method to increase the button's size so far. It is impossible until I break the layout.
Is there any way to change the size of widget even though the vertical/horizontal layout is applied?