gtk.Scrollbar
gtk.Scrollbar — a base class for scrollbar widgets.
Description
The gtk.Scrollbar
widget is an abstract base class for gtk.HScrollbar
and gtk.VScrollbar.
The position of the thumb in a scrollbar is controlled by the scroll
adjustments. The gtk.Scrollbar uses the attributes in an adjustment (see gtk.Adjustment) as follows:
- the adjustment.lower attribute is the
minimum value of the scroll region
- the adjustment.upper attribute is the
maximum value of the scroll region
- the adjustment.value attribute
represents the position of the scrollbar, which must be between
adjustment.lower and adjustment.upper
- adjustment.page_size
- the adjustment.page_size attribute
represents the size of the visible scrollable area
- the adjustment.step_increment attribute
is the distance to scroll when the small stepper arrows are clicked
- the adjustment.page_increment attribute
is the distance to scroll when the Page Up or Page
Down keys are pressed