horizontal-scroll-bar

horizontal-scroll-bar is a variable defined in `C source code'.
Its value is

t

• Automatically becomes buffer-local when set.

Documentation:
Position of this buffer's horizontal scroll bar.
The value takes effect whenever you tell a window to display this buffer;
for instance, with `set-window-buffer' or when `display-buffer' displays it.

A value of `bottom' means put the horizontal scroll bar at the bottom of
the window; a value of nil means don't show any horizontal scroll bars.
A value of t (the default) means do whatever the window's frame
specifies.