Sets the :visible property of the action to visible. Note that this doesn’t necessarily mean effective visibility. See gtk.action.Action.isVisible
for that.
true to make the action visible
Deprecated: Use #GAction instead, and control and monitor the state of #GtkActionable widgets directly
Sets the :visible property of the action to visible. Note that this doesn’t necessarily mean effective visibility. See gtk.action.Action.isVisible
for that.