gtk-sharp 2.8.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. A base class for ruler widgets. The Ruler widget is a base class for horizontal and vertical rulers. Rulers are used to show the mouse pointer's location in a window. Within the ruler a small triangle indicates the location of the mouse relative to the horizontal or vertical ruler. Concrete classes are and for horizontal and vertical rulers, respectively. With this class, you can adjust the unit type and the range of values that a ruler displays. Note:- This widget is considered too specialized for GTK+, and will likely be moved to some other package in the future. Gtk.Widget Method System.Void Draws tickmarks on the ruler. Method System.Void Draws the mouse position mark on the ruler. Method System.Void Sets the range information. The lower value to display on the Ruler. The upper value to display on the Ruler. The current position of the mouse aligned with this Ruler. A , the maximum size of the ruler. Method System.Void Gets the range information. A for the lower value to display on the Ruler. A for the upper value to display on the Ruler. A for the current position of the mouse aligned with this Ruler. A , the maximum size of the ruler. Constructor Internal constructor Pointer to the C object. This is an internal constructor, and should not be used by user code. Property Gtk.MetricType Manage the measurement unit that is displayed. The current units in use. If this property is not explicitly set, the default for a ruler is . GLib.Property(Name="metric") Property System.Double The upper value to display on the ruler. A GLib.Property(Name="upper") Property System.Double The position of the mouse mark on the ruler. A GLib.Property(Name="position") Property System.Double The maximum size of the ruler. A GLib.Property(Name="max-size") Property System.Double The lower limit of the ruler. A GLib.Property(Name="lower") 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(Message=null, IsError=False) Constructor Protected constructor.