INT 7B R - AutoCAD Device Interface - PRINTER/PLOTTER - BEGIN PLOT              
	AX = 8001h
	BX = file level
	    0000h binary file
	    0001h CAD/camera image file
	    0002h installed ADI driver
	CX = horizontal size in pixels
	DX = vertical size in pixels
Return: AX = status (0000h initialization failed, 0001h init successful)
	BX = allowed output format
	    0000h monochrome
	    0001h color (4 bits per pixel)
SeeAlso: AX=8002h,AX=8003h,INT 7B"AutoCAD",INT 7C"AutoShade"