GtkScrollbar {RGtk2} | R Documentation |
Base class for GtkHScrollbar and GtkVScrollbar
GObject +----GInitiallyUnowned +----GtkObject +----GtkWidget +----GtkRange +----GtkScrollbar +----GtkHScrollbar +----GtkVScrollbar
GtkScrollbar implements
AtkImplementorIface, GtkBuildable
and GtkOrientable
.
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).
GtkScrollbar
The GtkScrollbar
struct does not contain any public data.
Derived by RGtkGen from GTK+ documentation
http://library.gnome.org/devel//gtk/GtkScrollbar.html