DEFVAR_BOOL ("x-use-underline-position-properties",
&x_use_underline_position_properties,
doc: /* *Non-nil means make use of UNDERLINE_POSITION font properties.
-nil means ignore them. If you encounter fonts with bogus
+A value of nil means ignore them. If you encounter fonts with bogus
UNDERLINE_POSITION font properties, for example 7x13 on XFree prior
to 4.1, set this to nil.
DEFVAR_BOOL ("x-underline-at-descent-line",
&x_underline_at_descent_line,
doc: /* *Non-nil means to draw the underline at the same place as the descent line.
-nil means to draw the underline according to the value of the variable
-`x-use-underline-position-properties', which is usually at the baseline
-level. The default value is nil. */);
+A value of nil means to draw the underline according to the value of the
+variable `x-use-underline-position-properties', which is usually at the
+baseline level. The default value is nil. */);
x_underline_at_descent_line = 0;
DEFVAR_LISP ("x-toolkit-scroll-bars", &Vx_toolkit_scroll_bars,
&Vmac_emulate_three_button_mouse,
doc: /* *Specify a way of three button mouse emulation.
The value can be nil, t, or the symbol `reverse'.
-nil means that no emulation should be done and the modifiers should be
-placed on the mouse-1 event.
+A value of nil means that no emulation should be done and the modifiers
+should be placed on the mouse-1 event.
t means that when the option-key is held down while pressing the mouse
button, the click will register as mouse-2 and while the command-key
is held down, the click will register as mouse-3.