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Network traffic monitor
A free network (Internet / intranet) traffic (download / upload) monitor. Network traffic monitor allows you to quickly and easily examine the network usage of the local computer. Full Delphi source code included.
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Original idea by Dirk Claessens; GUI, TTraffic class and text by Zarko Gajic.

Network Traffic Monitor is a network analytic tool that examines local area network usage and provides a display of upload and download statistics. The main purpose of the application is monitoring (and counting) the IP traffic between your local area network (LAN) and Internet.

Realtime traffic accounting and monitoring
Network Traffic Monitor provides real-time traffic accounting and monitoring. It is very dynamic, every new (dial-up) connection is registered and monitored, you can use it to count useful download and upload traffic of a computer or extend it to build the traffic accounting system for all computers in your company's LAN.

Upon startup, the application collects current information about the number of network interfaces, of a computer, and starts monitoring download and upload usage of each interface.

About Delphi Programming: Network Traffic Monitor

"Delphi talk"
Network Traffic Monitor provides (for all installed network interfaces) MAC-address, IP-address, octets in/out per second, peak in/out per second, average in/out per second, etc.

The application heavily uses IP Helper API function.

Internet Protocol Helper (IP Helper)
Internet Protocol Helper (IP Helper) assists network administration of the local computer by enabling applications to retrieve information about the network configuration of the local computer, and to modify that configuration.

IP Helper API exposes many functions and structures to retrieve and modify configuration settings for the Transmission Control Protocol/Internet Protocol (TCP/IP) transport on the local computer. By default, Delphi does not provide access to IPHLPAPI.DLL - in terms of converted function calls using Delphi syntax. Interface units are available from the JEDI Web site (http://www.delphi-jedi.org).


That's it. Don't forget to download the full source code.

I'm not going in code details today - as always if there are any questions or comments please post them on the Delphi Programming Forum.

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