gtk-sharp 2.12.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. A vertical ruler. This ruler is used to show the vertical location of the mouse in the window and to display the vertical size of the window in the specified units. The available units of measurement are , and . The default is . A vertical ruler is typically used along the left or right edge of another widget such as a . Note:- This widget is considered too specialized for GTK+, and will likely be moved to some other package in the future. Gtk.Ruler Constructor Internal constructor Pointer to the C object. This is an internal constructor, and should not be used by user code. Constructor Creates a new vertical Ruler. Property GLib.GType GType Property. a Returns the native value for . Constructor Protected Constructor. a Chain to this constructor if you have manually registered a native value for your subclass. System.Obsolete