Hands-On GUI Programming with C++ and Qt5

Connection protocols

The networking module in Qt is the module that offers both low-level networking functionality, such as TCP and UDP sockets, as well as high-level networking classes for web integration and network communication.

In this chapter, we will use the TCP (Transmission Control Protocol) internet protocol for our program instead of the UDP (User Datagram Protocol) protocol. The main difference is that TCP is a connection-oriented protocol that requires all clients to establish a connection to the server before they are able to communicate with each other.

UDP on the other hand is a connectionless protocol that does not require a connection. The client will just send whatever data it needs to send to the destination, without checking ...