tool bar: How to get _no_ tooltip?

[Reiner Steib]

Hi,

M-: (tool-bar-local-item "exit" nil nil tool-bar-map) RET
adds a new icon to the tool bar.  When moving the mouse over the icon,
a tooltip with the text "nil" is displayed.

With `M-: (tool-bar-local-item "exit" nil nil tool-bar-map :help "")
RET', I get very small tooltip with no text.

How to disable the tooltip completely?  (The icon I want to use is a
separator icon without any associated command.)

The code above is for Emacs 22.  In Emacs 21 you need to use
(tool-bar-add-item "exit" nil nil) and (tool-bar-add-item "exit" nil
nil :help "").

Bye, Reiner.
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      (o o)
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