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(Extended Menu Items): Menu item filter functions

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can be called at any time.
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Richard M. Stallman 2005-05-10 09:15:49 +00:00
parent 3f0f48c040
commit bf58181a31
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lispref/keymaps.texi
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@ -1909,6 +1909,10 @@ This property provides a way to compute the menu item dynamically.
The property value @var{filter-fn} should be a function of one argument;
when it is called, its argument will be @var{real-binding}. The
function should return the binding to use instead.
Emacs can call this function at any time that it does redisplay or
operates on menu data structures, so you should write it so it can
safely be called at any time.
@end table
@node Menu Separators