Int 14 Fn AA08  - Dimvga V2.0+ - Dim Screen 'manually'                     [V]

   AX = AA08h

Return: AX = FFFFh

Note:  this function will dim the screen immediately, even if DimVGA is
     currently disabled

See Also: AX=AA01h,AX=AA02h,AX=AA09h
Index: screen saver;DimVGA