set_popover

Description:

public void set_popover (Widget? popover)

Sets the `GtkPopover` that will be popped up when the this 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 this, and the property is set to null.

this	a `GtkMenuButton`
popover	a `GtkPopover`, or null to unset and disable the button