C/C++/C# RS232 serial port communications component library. Features include: Supports 256 ports, control multiple ports simultaneously, fully thread safe, port re-entrant, modem control, serial line status and control, ANSI emulation, ASCII/XMODEM/YMODEM. Uses the standard Windows API to communicate with any device connected to a serial port (scale, modem, fingerprint scanner, printer servers, etc). State driven Xmodem and Ymodem on multiple...