setPopover

open fun setPopover(popover: Widget? = null)

Sets the GtkPopover that will be popped up when the @menu_button is clicked.

If @popover is null, the button is disabled.

If property@Gtk.MenuButton:menu-model is set, the menu model is dissociated from the @menu_button, and the property is set to null.

popover

a GtkPopover, or null to unset and disable the button