INT 7A R - AutoCAD Device Interface - RENDERING DEVICE - INITIALIZE (RDLINKUP) AX = 0200h BX = 0000h CX = interface level (0001h) Return: BX = 0000h (driver uses packet communication) DX:CX -> packet-mode entry point (see #03832) SeeAlso: AX=0001h"AutoCAD",INT 79/AX=0001h,INT 7B/AX=8001h"AutoCAD"