Variable: speedbar--window-width
speedbar--window-width is a variable defined in speedbar.el.gz.
Value
20
Documentation
Stores the current width of speedbar-window.
Subsequent calls to speedbar-window will open a window of this width.
Source Code
;; Defined in /usr/src/emacs/lisp/speedbar.el.gz
(defvar speedbar--window-width speedbar-window-default-width
"Stores the current width of `speedbar-window'.
Subsequent calls to `speedbar-window' will open a window of this width.")