NAME
    GetDefaultPubScreen -- Get name of default public screen. (V36)

SYNOPSIS
    GetDefaultPubScreen( Namebuff )
                         A0

    VOID GetDefaultPubScreen( UBYTE * );

FUNCTION
    Provides the name of the current default public screen.
    Only anticipated use is for Public screen manager utilities,
    since it is easy to open a visitor window on the default
    public screen without specifying the name.

INPUTS
    Namebuff = a buffer of MAXPUBSCREENNAME.  This can be NULL.

RESULT
    None.  Will provide the string "Workbench" in Namebuff if there
    is no current default public screen.

NOTE
    This function actually "returns" in register D0 a pointer
    to the public screen.  Unfortunately, the lifespan of
    this pointer is not ensured; the screen could be closed
    at any time.  The *ONLY* legitimate use we can see for
    this return value is to compare for identity with the pointer
    to a public screen you either have a window open in, or
    a lock on using lockpubscreen(), to determine if that
    screen is in fact the default screen.

BUGS
    The function prototype does not reflect the return value.

SEE ALSO
    setdefaultpubscreen(), openwindow()