đź“Ť : Use UDP when you need the lowest possible latency and can afford to lose an occasional packet. For everything else, stick to TCP.
Delphi developers typically use one of several major libraries to manage UDP sockets: Delphi UDP and Client/Server Programming Examples delphi udp
User Datagram Protocol (UDP) is a connectionless, lightweight transport layer protocol. Unlike TCP, UDP does not guarantee delivery, order, or error checking beyond the basic checksum. However, this simplicity makes it exceptionally fast and efficient for scenarios where speed outweighs reliability, such as real-time video streaming, online gaming, DNS queries, and local network discovery. đź“Ť : Use UDP when you need the
In the world of software development, few tasks are as critical—and occasionally as frustrating—as network programming. For decades, Delphi has remained a premier tool for building high-performance Windows applications, and its capabilities in networking are second to none. While TCP (Transmission Control Protocol) gets the lion's share of attention for its reliability, there is a darker, faster, and more chaotic sibling in the networking family that is indispensable for modern applications: Unlike TCP, UDP does not guarantee delivery, order,
Indy remains the de facto standard for many Delphi developers due to its extensive documentation and ease of use.
type TUDPReceiver = class private FSocket: TUdpSocket; procedure OnDataAvailable(const AData: TBytes; AEndpoint: TEndpoint); public procedure StartListening(APort: Integer); end;
If you'd like to explore or advanced implementation techniques, let me know: Broadcasting or Multicasting data to multiple clients Sending complex records or objects via TIdBytes Integrating OpenSSL for secure UDP (DTLS)