Int 62 Fn 0048  u - Fgdriver V4.02 - "fg_getmap" - Store Image As Mode-in  [V]

   AX = 0048h
   ES:BX -> buffer for video mode-independent bitmap
   CX = width of bitmap in bytes
   DX = height of bitmap in pixel rows

Return: each bit in bitmap is set if corresponding pixel is of the current
     color, cleared otherwise

Notes: the FGDRIVER functions are rearranged with each major release, but
     their parameters do not change (see #3145 at AX=0000h)
   This call is ignored in text modes

See Also: AX=0011h,AX=001Eh,AX=0024h