## GtkScrollbar

GtkScrollbar — base class for GtkHScrollbar and GtkVScrollbar.

## Synopsis

    #include <gtk/gtk.h>

    struct      GtkScrollbar;

## Object Hierarchy

      GObject
       +----GtkObject
             +----GtkWidget
                   +----GtkRange
                         +----GtkScrollbar
                               +----GtkHScrollbar
                               +----GtkVScrollbar

## Implemented Interfaces

GtkScrollbar implements AtkImplementorIface.

## Style Properties

      "fixed-slider-length"  gboolean             : Read
      "has-backward-stepper" gboolean             : Read
      "has-forward-stepper"  gboolean             : Read
      "has-secondary-backward-stepper" gboolean             : Read
      "has-secondary-forward-stepper" gboolean             : Read
      "min-slider-length"    gint                 : Read

## Description

The GtkScrollbar widget is an abstract base class for GtkHScrollbar and GtkVScrollbar. It is not very useful in itself.

The position of the thumb in a scrollbar is controlled by the scroll adjustments. See GtkAdjustment for the fields in an adjustment - for GtkScrollbar, the "value" field represents the position of the scrollbar, which must be between the "lower" field and "upper - page_size." The "page_size" field represents the size of the visible scrollable area. The "step_increment" and "page_increment" fields are used when the user asks to step down (using the small stepper arrows) or page down (using for example the PageDown key).

## Details

### struct GtkScrollbar

    struct GtkScrollbar;

The GtkScrollbar struct does not contain any public data.

## Style Properties

"`fixed-slider-length`" (gboolean : Read) | Don't change slider size, just lock it to the minimum length.
"`has-backward-stepper`" (gboolean : Read) | Display the standard backward arrow button.
"`has-forward-stepper`" (gboolean : Read) | Display the standard forward arrow button.
"`has-secondary-backward-stepper`" (gboolean : Read) | Display a second backward arrow button on the opposite end of the scrollbar.
"`has-secondary-forward-stepper`" (gboolean : Read) | Display a secondary forward arrow button on the opposite end of the scrollbar.
"`min-slider-length`" (gint : Read) | Minimum length of scrollbar slider.

## See Also

GtkHScrollbar | a horizontal scrollbar.
GtkVScrollbar | a vertical scrollbar.
GtkAdjustment | connects scrollbars to the widget being scrolled.
GtkScrolledWindow | convenient widget for setting up scrolling.