29.4.3.4 Layout Parameters
These frame parameters enable or disable various parts of the
frame, or control their sizes.
border-width- The width in pixels of the frame's outer border (see Frame Geometry).
internal-border-width- The width in pixels of the frame's internal border (see Frame Geometry).
vertical-scroll-bars- Whether the frame has scroll bars (see Scroll Bars) for vertical
scrolling, and which side of the frame they should be on. The possible
values are
left, right, and nil for no scroll bars.
horizontal-scroll-bars- Whether the frame has scroll bars for horizontal scrolling (
t and
bottom mean yes, nil means no).
scroll-bar-width- The width of vertical scroll bars, in pixels, or
nil meaning to
use the default width.
scroll-bar-height- The height of horizontal scroll bars, in pixels, or
nil meaning
to use the default height.
left-fringeright-fringe- The default width of the left and right fringes of windows in this
frame (see Fringes). If either of these is zero, that effectively
removes the corresponding fringe.
When you use frame-parameter to query the value of either of
these two frame parameters, the return value is always an integer.
When using set-frame-parameter, passing a nil value
imposes an actual default value of 8 pixels.
right-divider-width- The width (thickness) reserved for the right divider (see Window Dividers) of any window on the frame, in pixels. A value of zero means
to not draw right dividers.
bottom-divider-width- The width (thickness) reserved for the bottom divider (see Window Dividers) of any window on the frame, in pixels. A value of zero means
to not draw bottom dividers.
menu-bar-lines- The number of lines to allocate at the top of the frame for a menu bar
(see Menu Bar). The default is one if Menu Bar mode is enabled and
zero otherwise. See Menu Bars. For an
external menu bar (see Frame Layout), this value remains unchanged
even when the menu bar wraps to two or more lines. In that case, the
menu-bar-size value returned by frame-geometry
(see Frame Geometry) allows to derive whether the menu bar actually
occupies one or more lines.
tool-bar-lines- The number of lines to use for the tool bar (see Tool Bar). The
default is one if Tool Bar mode is enabled and zero otherwise.
See Tool Bars. This value may change
whenever the tool bar wraps (see Frame Layout).
tool-bar-position- The position of the tool bar when Emacs was built with GTK+. Its value
can be one of
top, bottom left, right. The
default is top.
line-spacing- Additional space to leave below each text line, in pixels (a positive
integer). See Line Height, for more information.
no-special-glyphs- If this is non-
nil, it suppresses the display of any truncation
and continuation glyphs (see Truncation) for all buffers displayed
by this frame. This is useful to eliminate such glyphs when fitting a
frame to its buffer via fit-frame-to-buffer (see Resizing Windows).