The toggle Widget

Syntax:

     type ::= (toggle [keyword argument]...)

The widget has two possible states, ‘on’ and ‘off’, which correspond to a t or nil value, respectively.

The following extra properties are recognized:

:on

A string representing the ‘on’ state. By default the string ‘on’.

:off

A string representing the ‘off’ state. By default the string ‘off’.

:on-glyph

Name of a glyph to be used instead of the ‘:on’ text string, on emacsen that supports this.

:off-glyph

Name of a glyph to be used instead of the ‘:off’ text string, on emacsen that supports this.