Sets the #GtkMenu that will be popped up when the button is clicked, or %NULL to disable the button. If #GtkMenuButton:menu-model or #GtkMenuButton:popover are set, they will be set to %NULL.
a #GtkMenu
3.6
See Implementation
Sets the #GtkMenu that will be popped up when the button is clicked, or %NULL to disable the button. If #GtkMenuButton:menu-model or #GtkMenuButton:popover are set, they will be set to %NULL.