NAME
    DisplayBeep -- Flash the video display.

SYNOPSIS
    DisplayBeep( Screen )
                 A0

    VOID DisplayBeep( struct Screen * );

FUNCTION
    "Beeps" the video display by flashing the background color of the
    specified screen.  If the screen argument is NULL, every screen
    in the display will be beeped.  Flashing everyone's screen is not
    a polite thing to do, so this should be reserved for dire
    circumstances.

    The reason such a routine is supported is because the Amiga has
    no internal bell or speaker.  When the user needs to know of
    an event that is not serious enough to require the use of a requester,
    the DisplayBeep() function may be called.

    New for V36:  Intuition now calls DisplayBeep through the
    external library vector.  This means that if you call SetFunction()
    to replace DisplayBeep with an audible beep, for example, then
    your change will affect even Intuition's calls to DisplayBeep.

INPUTS
    Screen = pointer to a screen.  If NULL, every screen in the display
       will be flashed

RESULT
    None

BUGS

SEE ALSO

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