Int 2F Fn CD03  - Intel Image Processing Interface - Select Scan Line      [-]

   AX = CD03h
   BX = scan line
   CX = requested density in dots per inch (300, 600, or 1200)

Return: AL = 00h successful
       CX = density at which scan line was mapped
       ES:DI -> start of scan line
   AL = 80h unsuccessful
      = 81h scan line out of range
      = 82h unsupported scan line density
      = 83h out of memory

See Also: AX=CD04h"Image"