INT 7A R - AutoCAD Device Interface - DISPLAY - INITIALIZE (INIT1)
	AX = 0001h
	BX = configuration
	CX = interface level (0001h)
Return: AX = status
	    0000h initialization failed
	    0001h pre-v4.0 driver initialized successfully
	    0003h post-v3.1 driver initialized successfully (driver truncates
		  excessivly long packets)
	BX = width of graphics area in pixels, or 0000h if using packet
		  communication
	DX:CX -> packet-mode entry point (see #03832)
SeeAlso: AX=0001h,AX=0200h,AX=07D0h,INT 61/AX=0007h"OPTIMA",INT 78"AutoCAD"
SeeAlso: INT 79/AX=0001h,INT 7B/AX=8001h"AutoCAD",INT 7C"AutoShade"


(Table 03832)
Call packet-mode entry point with:
STACK:	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	pointer to request packet (see #03833)
	WORD	length of packet


Format of request packet:
Offset	Size	Description	(Table 03833)
 00h	WORD	function number (00h-45h for Compaq VGADI41.EXE)