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defgroup :version

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Dave Love 2000-11-02 14:47:18 +00:00
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lispref/customize.texi
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@ -130,8 +130,20 @@ is a symbol, and @var{widget} is a widget type for editing that symbol.
Useful widgets are @code{custom-variable} for a variable,
@code{custom-face} for a face, and @code{custom-group} for a group.
When a new group is introduced into Emacs, use this keyword in
@code{defgroup}:
@table @code
@item :version @var{version}
This option specifies that the group was first introduced in Emacs
version @var{version}. The value @var{version} must be a string.
@end table
Tag the group with a version like this when it is introduced, rather
than the individual members (@pxref{Variable Definitions}).
In addition to the common keywords (@pxref{Common Keywords}), you can
use this keyword in @code{defgroup}:
also use this keyword in @code{defgroup}:
@table @code
@item :prefix @var{prefix}