Int 62 Fn 0008  u - Fgdriver V3.03 - "fg_boxx" - Xor Hollow Rectangle      [V]

   AX = 0008h
   BX = left column
   CX = right column
   DX = top row
   SI = bottom row

Notes: For FGDRIVER v1.10, this function was unused and "FG_BOXX" did not
     exist yet
   The rectangle is XORed into screen space, respecting the clipping
     region, with edges of the width specified with "FG_BOXDEPTH"
     (see AX=0007h) (default = 1 is set by "FG_SETMODE")
   This function has no effect in text modes

See Also: AX=0006h,AX=0007h,AX=001Fh,AX=0020h,AX=0077h