Category: <b>vendor-specific BIOS extensions</b>
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<pre><b>INT 10 - VIDEO - Compaq Extensions - GET ENVIRONMENT</b>

	AX = BF03h
	BX = 0000h
Return: BH = active monitor
	    (00h = external, 01h = internal, 03h both, 04h neither)
	BL = master mode (see <a href=../../it/11/2.html>#00211</a>)
	CH = ASIC type and version
	    00h (reserved, very early Compaq VGCs)
	    31h if QVision VGA
	CL = switchable VDU modes supported (see <a href=../../it/12/2.html>#00212</a>)
	DH = internal monitor type (see <a href=../../it/13/2.html>#00213</a>)
	DL = external monitor type (see <a href=../../it/13/2.html>#00213</a>)
SeeAlso: AX=1A00h,AX=BF00h,AX=BF01h,AX=BF02h,AX=BF11h

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