Arguments: standard-object
Returns the value of the scrollbars property of the argument. This
property is unrelated to the scrolbar controls (horizontal-scroll-bar and vertical-scroll-bar)
but instead refers to system-provided scrollbars for certain windows
and controls. The value can be nil (no
scrollbars), :horizontal and :vertical, scrollbar in the indicated
direction only, and t, scrollbars in both directions. For windows
other than controls, the page-height and page-width properties control the
range of the scrollbars; for controls, the range is determined by the
control's contents. Some controls (single-item-list, multi-item-list, and
combo-box)
cannot have a horizontal scrollbar, so the valid choices are
:vertical and nil for
those controls. If a horizontal scrollbar is needed on an item-list,
an outline
control could be used instead, using only top-level items in the range
and turning off the draw-icons property to simulate an
item-list.
This function is not setfable. The scrollbars of a window or dialog-item must be established with the :scrollbars initarg when it is created, or using the inspector when designing a window or widget on a form.
Note: incompatible change in release 6.0: in releases prior
to 6.0, when a frame-with-single-child instance
was passed to this operator, the operator was actually applied to the
child (the result of applying frame-child to the
frame-with-single-child instance). In release 6.0, this redirection no
longer occurs. If you intend this operator to apply to the
frame-child, pass that to this operator rather than the parent. This
is a non-backward-compatible-change. See the release notes for more
information.
Common Graphics and IDE documentation is described in About Common Graphics and IDE documentation in cgide.htm.
The documentation is described in introduction.htm and the index is in index.htm.
Copyright (c) 1998-2000, Franz Inc. Berkeley, CA., USA. All rights reserved.
Created 2000.10.5.