Variable: line-spacing

line-spacing is a customizable and buffer-local variable defined in buffer.c.

Documentation

Additional space to put between lines when displaying a buffer.

The space is measured in pixels, and put below lines on graphic displays, see display-graphic-p. If value is a floating point number, it specifies the spacing relative to the default frame line height. If value is a cons cell containing a pair of floats or integers, it is interpreted as space above and below the line, respectively. A value of nil means add no extra space.

This variable was added, or its default value changed, in Emacs 22.1.

View in manual

Probably introduced at or before Emacs version 21.1.

Source Code

// Defined in /usr/src/emacs/src/buffer.c
  DEFVAR_PER_BUFFER ("line-spacing",
		     extra_line_spacing, Qnil,
		     doc: /* Additional space to put between lines when displaying a buffer.
The space is measured in pixels, and put below lines on graphic displays,
see `display-graphic-p'.
If value is a floating point number, it specifies the spacing relative
to the default frame line height.
If value is a cons cell containing a pair of floats or integers,
it is interpreted as space above and below the line, respectively.
A value of nil means add no extra space.  */);