Async Professional

Home
Project Home

Manuals
Delveoper's Guide
Reference Guide
Activex

FAQ
Downloads

Com Port Component

The Async Professional port component builds the foundation for all communications applications. The simplest application might contain a single TApdComPort; a more complex application might contain one or more port components and many other components that rely on the services of a TApdComPort (terminal windows, modems, and so on).

The TApdComPort component, which contains properties and methods for the following:

• Configuring the serial port hardware and Windows communications driver (buffer sizes, line parameters, flow control).

• Providing information about the state of the serial port (modem signals, line errors).

• Transmitting and receiving data.

• Interfacing with the TApdDataPacket component to identify and handle received data.

• Assigning VCL events to handle received data, matched strings, status changes, and timers.

In addition to its support for standard serial ports, the TApdComPort includes specialized support for the RS-485 communication standard.

If you need to support network or Internet communications using Winsock, you should consider using the TApdWinsockPort instead of the TApdComPort. Since the TApdWinsockPort is a descendant of the TApdComPort, it retains all capabilities of the TApdComPort, and adds support for Winsock.

This document maintained by the Async Professional Project.