INT 10 - VIDEO - Compaq Portable/Systempro Extensions - GET ENVIRONMENT
AX = BF03h
BX = 0000h
Return: BH = active monitor
00h = external
01h = internal
BL = master mode
00h = switchable VDU not present
04h = CGA
05h = EGA
07h = MDA
08h = switchable LCD controller present
CH = 00h (reserved)
CL = switchable VDU mode supported
bit  0   = CGA supported
bits 1,2 = reserved (1)
bit  3   = MDA supported
bits 4-7 = reserved (1)
DH = internal monitor type
00h = none
01h = Dual-mode monitor
02h = 5153 RGB monitor
03h = Compaq Color monitor
04h = 640x400 flat panel
07h = LCD VGA
DL = external monitor type
00h = none
01h = dual-mode monitor
02h = 5153 RGB monitor
03h = Compaq Color monitor
04h = 640x400 flat panel
05h = VGC monochrome
06h = VGC color
SeeAlso: AX=BF00h,AX=BF01h,AX=BF02h

See also: 101A

10BF03BX0000 - VIDEO - Compaq Portable/Systempro Extensions - GET ENVIRONMENT