INT 10 - VIDEO - UltraVision v1.2+ - GET UNDERLINE STATUS (EGA,VGA)
AX = CD08h
Return: CL = hardware underline status (see AX=CD07h)
BL = foreground color for normal text
BH = foreground color for bright text
Note:   only CL is valid on monochrome EGA systems

See also: 10CD07

10CD08 - VIDEO - UltraVision v1.2+ - GET UNDERLINE STATUS (EGA,VGA)