Description A GtkSeparatorItem is a GtkToolItem that separates groups of other GtkToolItems. Depending on the theme, a GtkSeparatorToolItem will often look like a vertical line on horizontally docked toolbars. If the property "expand" is TRUE and the property "draw" is FALSE, a GtkSeparatorToolItem will act as a "spring" that forces other items to the ends of the toolbar. Use gtk_separator_tool_item_new() to create a new GtkSeparatorToolItem.