NAME
       GfxNew -- allocate a graphics extended data structure (V36)

   SYNOPSIS
        result = GfxNew( node_type );
        d0               d0

        struct extendednode *gfxnew( ulong);

   FUNCTION
        allocate a special graphics extended data structure (each of which
        begins with an extendednode structure).  the type of structure to
        be allocated is specified by the node_type identifier.

   INPUTS
        node_type = which type of graphics extended data structure to allocate.
                    (see gfxnodes.h for identifier definitions.)

   RESULT
        result = a pointer to the allocated graphics node or NULL if the
                 allocation failed.

   BUGS

   SEE ALSO
        graphics/gfxnodes.h gfxfree() gfxassociate() gfxlookup()