GtkScale a base class for #GtkHScale and #GtkVScale. The #GtkScale widget is an abstract class, used only for deriving the subclasses #GtkHScale and #GtkVScale. The #GtkScale-struct struct contains the following fields. (These fields should be considered read-only. They should never be set by an application.) #guint draw_value; non-zero if the scale's current value is displayed next to the slider. #guint value_pos; the position in which the textual value is displayed, selected from #GtkPositionType. Sets the number of decimal places that are displayed in the value. Also causes the value of the adjustment to be rounded off to this number of digits, so the retrieved value matches the value the user saw. @scale: a #GtkScale. @digits: the number of decimal places to display, e.g. use 1 to display 1.0, 2 to display 1.00 etc. Specifies whether the current value is displayed as a string next to the slider. @scale: a #GtkScale. @draw_value: Sets the position in which the current value is displayed. @scale: a #GtkScale. @pos: the position in which the current value is displayed. An internal function used to get the maximum width needed to display the value string. @scale: a #GtkScale. @Returns: the maximum width needed to display the value string. @scale: the object which received the signal. @arg1: @Returns: The number of decimal places that are displayed in the value. If the current value is displayed as a string next to the slider. The position in which the current value is displayed.