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).
child-frame-border-width ¶The width in pixels of the frame’s internal border (see Frame Geometry) if the given frame is a child frame (see Child Frames).
If this is nil, the value specified by the
internal-border-width parameter is used instead.
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-fringe ¶right-fringeThe 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 The Menu Bar). The default is one if Menu Bar mode is enabled and
zero otherwise. See Menu Bars in The GNU Emacs Manual. 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 bars). The default is one if Tool Bar mode is enabled and zero otherwise. See Tool Bars in The GNU Emacs Manual. 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.
tab-bar-lines ¶The number of lines to use for the tab bar (see Tab Bars in The GNU Emacs Manual). The default is one if Tab Bar mode is enabled and zero otherwise. This value may change whenever the tab bar wraps (see Frame Layout).
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
(see Truncation) and continuation glyphs for all the 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). This frame parameter has effect only for
GUI frames shown on graphical displays, and only if the fringes are
disabled. This parameter is intended as a purely-presentation
feature, and in particular should not be used for frames where the
user can interactively insert text, or more generally where the cursor
is shown. A notable example of frames where this is used is tooltip
frames (see Tooltips).