Int 62 Fn 004B  u - Fgdriver V4.02 - "fg_getmode" - Get Current Video Mod  [V]

   AX = 004Bh
   ES:BX -> WORD ???

Return: AX = current video mode number

Note:  the FGDRIVER functions are rearranged with each major release, but
     their parameters do not change (see #3145 at AX=0000h)

See Also: AX=00B0h