Returns the toolbar style used for tool_item. Custom subclasses of
#GtkToolItem should call this function in the handler of the
GtkToolItem::toolbar_reconfigured signal to find out in what style
the toolbar is displayed and change themselves accordingly
Returns the toolbar style used for tool_item. Custom subclasses of #GtkToolItem should call this function in the handler of the GtkToolItem::toolbar_reconfigured signal to find out in what style the toolbar is displayed and change themselves accordingly
Possibilities are: