Variable: right-fringe-width

right-fringe-width is a buffer-local variable defined in buffer.c.

Documentation

Width of this buffer's right fringe (in pixels).

A value of 0 means no right fringe is shown in this buffer's window. A value of nil means to use the right fringe width from the window's frame.

Setting this variable does not take effect until a new buffer is displayed in a window. To make the change take effect, call set-window-buffer.

Probably introduced at or before Emacs version 22.1.

Source Code

// Defined in /usr/src/emacs/src/buffer.c
  DEFVAR_PER_BUFFER ("right-fringe-width", &BVAR (current_buffer, right_fringe_width),
		     Qintegerp,
		     doc: /* Width of this buffer's right fringe (in pixels).
A value of 0 means no right fringe is shown in this buffer's window.
A value of nil means to use the right fringe width from the window's frame.

Setting this variable does not take effect until a new buffer is displayed
in a window.  To make the change take effect, call `set-window-buffer'.  */);