To detect changes to the value, you would normally use the "value_changed"
signal.
</para>
-<para>
-The #GtkScale widget is an abstract class, used only for deriving the
-subclasses #GtkHScale and #GtkVScale. To create a scale widget,
-call gtk_hscale_new_with_range() or gtk_vscale_new_with_range().
-</para>
<refsect2 id="GtkScale-BUILDER-UI"><title>GtkScale as GtkBuildable</title>
<para>
<!-- ##### SECTION Long_Description ##### -->
<para>
-The #GtkScrollbar widget is an abstract base class for #GtkHScrollbar and
-#GtkVScrollbar. It is not very useful in itself.
+The #GtkScrollbar widget is the base class for #GtkHScrollbar and
+#GtkVScrollbar. It can be used in the same way as these, by setting
+the "orientation" property appropriately.
</para>
<para>
* @Title: GtkBox
* @See_also:i #GtkHBox, #GtkVBox, #GtkFrame, #GtkTable, #GtkLayout
*
- * GtkBox is an abstract widget which encapsulates functionality for a
+ * GtkBox is an widget which encapsulates functionality for a
* particular kind of container, one that organizes a variable number of
* widgets into a rectangular area. GtkBox has a number of derived
* classes, e.g. #GtkHBox and #GtkVBox.
* GtkBox are allocated one dimension in common, which is the height of a
* row, or the width of a column.
*
- * GtkBox uses a notion of <emphasis>packing</emphasis>. Packing refers to
- * adding widgets with reference to a particular position in a
+ * GtkBox uses a notion of <emphasis>packing</emphasis>. Packing
+ * refers to adding widgets with reference to a particular position in a
* #GtkContainer. For a GtkBox, there are two reference positions: the
* <emphasis>start</emphasis> and the <emphasis>end</emphasis> of the box.
* For a #GtkVBox, the start is defined as the top of the box and the end is
* @Title: GtkRange
*
* #GtkRange is the common base class for widgets which visualize an
- * adjustment, e.g #GtkScale or #GtkScroolbar.
+ * adjustment, e.g #GtkScale or #GtkScrollbar.
*
* Apart from signals for monitoring the parameters of the adjustment,
* #GtkRange provides properties and methods for influencing the sensitivity