<ThreadSafetyStatement>Gtk# is thread aware, but not thread safe; See the <linklocation="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details.</ThreadSafetyStatement>
<para>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 <seecref="P:Gtk.MetricType.Pixels"/>, <seecref="P:Gtk.MetricType.Inches"/> and <seecref="P:Gtk.MetricType.Centimeters"/>. The default is <seecref="P:Gtk.MetricType.Pixels"/>.</para>
<para>A vertical ruler is typically used along the left or right edge of another widget such as a <seecref="T:Gtk.DrawingArea"/>.</para>
<para>Note:- This widget is considered too specialized for GTK+, and will likely be moved to some other package in the future.</para>
<returns>Creates a new instance of VRuler, using the GLib-provided type</returns>
<remarks>
<para>This is a constructor used by derivative types of <seecref="T:Gtk.VRuler"/> that would have their own GLib type assigned to it. This is not typically used by C# code.</para>