GtkScrollbar

Base class for GtkHScrollbar and GtkVScrollbar

internal

Facilities in the R language for programming graphical
        interfaces using Gtk, the Gimp Tool Kit.

Michael Lawrence

RGtk2

R bindings for Gtk 2.8.0 and above

GtkScrollbar function

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

Hierarchy

GtkScrollbar implements
 AtkImplementorIface,  <code><a href="/link/GtkBuildable?package=RGtk2&version=2.20.1" rd-options="" data-mini-rdoc="RGtk2::GtkBuildable">GtkBuildable</a></code> and  <code><a href="/link/GtkOrientable?package=RGtk2&version=2.20.1" rd-options="" data-mini-rdoc="RGtk2::GtkOrientable">GtkOrientable</a></code>.

Interfaces

The <code><a href="/link/GtkScrollbar?package=RGtk2&version=2.20.1" rd-options="" data-mini-rdoc="RGtk2::GtkScrollbar">GtkScrollbar</a></code> widget is an abstract base class for <code><a href="/link/GtkHScrollbar?package=RGtk2&version=2.20.1" rd-options="" data-mini-rdoc="RGtk2::GtkHScrollbar">GtkHScrollbar</a></code> and
<code><a href="/link/GtkVScrollbar?package=RGtk2&version=2.20.1" rd-options="" data-mini-rdoc="RGtk2::GtkVScrollbar">GtkVScrollbar</a></code>. It is not very useful in itself.
  
The position of the thumb in a scrollbar is controlled by the scroll
adjustments. See <code><a href="/link/GtkAdjustment?package=RGtk2&version=2.20.1" rd-options="" data-mini-rdoc="RGtk2::GtkAdjustment">GtkAdjustment</a></code> for the fields in an adjustment - for
<code><a href="/link/GtkScrollbar?package=RGtk2&version=2.20.1" rd-options="" data-mini-rdoc="RGtk2::GtkScrollbar">GtkScrollbar</a></code>, 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).

GtkScrollbar: GtkScrollbar

Description

Arguments

Hierarchy

Interfaces

Detailed Description

References