Re: alarm_signal_handler is called too frequently

[Richard Stallman]

    > Are you thinking of the menu bar?  I think this code is concerned only
    > with popup menus; they are invoked with x-popup-menu, which is
    > analogous to x-popup-dialog.  So it has nothing to do with KeyPress.

    Duh, I meant ButtonPress.  Anyway, both popup menus and dialogs are 
    equal in this regard.

Yes, but I think neither of them is invoked with ButtonPress.
They are called by Lisp and from read_char_x_menu_prompt.