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Tech Note: TCP Communication, Data Exchange Methods: Creating a Messaging System
PRODUCT: 4D | VERSION: 21 | PLATFORM: Mac & Win
Published On: November 29, 2025

The TCP (Transmission Control Protocol) protocol plays a key role in network communications, particularly in client-server environments where data exchange reliability is essential. In a 4D database, it is particularly useful for low-level interactions with automation systems or third-party software. It can also be used to manage communication channels. However, its implementation can be complex. This technical note, through a simplified application example, aims to demonstrate a communication management approach in the context of inter-user communication.


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