Qt 6 Core Advanced with C++

Explore how to use the Qt maintenance tool to update components, install modules, and manage versions, with tips on disk space and selecting desktop, compatibility module, and source code options.

Learn to simplify multithreading by using Qt's QThreadPool and QRunnable to reuse threads, auto-delete runnables, and build a resource-efficient, multithreaded application.

Learn to simplify mutex handling with QMutexLocker in a Qt thread pool, replacing manual lock/unlock in QRunnable tasks to prevent deadlocks and ensure automatic unlock.

Explore cross-thread communication in Qt 6 core advanced with C++ by using signals and slots across threads within a runnable running on a thread pool, implementing a producer–consumer pattern.

Learn to iterate over multiple future values with QFutureIterator using Java style, index style, Qt style, and standard library approaches, including synchronous and asynchronous patterns and mapped results.

Spin up a manager to control multiple workers on different threads using Qt concurrent and signals and slots, coordinating start and stop commands with a timer-based event loop.

Explore how routers and switches interconnect networks and devices, from LANs to WANs and the internet, and understand internal and external IP addressing and topologies like star and mesh.

Explore the OSI model from physical to application layers, and understand how ports and well-known numbers enable TCP or UDP communication between applications, with examples.

Proxy servers act on behalf of the client to relay requests and responses, enabling filtering, security, and controlled access while offering potential anonymity.

Learn how ssl and https create an encrypted channel between client and server, with certificates verified by a certificate authority using fingerprint and the common name, as shown by Udemy.com.

Explore the UDP protocol, a connectionless, fast data sending approach where messages travel without guaranteed delivery or verification, contrasted with TCP's reliable three-way handshake.

Explore how Qt's QHostAddress and QNetworkInterface expose multiple interfaces and addresses, including IPv4 and IPv6, loopback, DNS, and proxies, with TCP and UDP sockets.

Build a full udp chat in Qt, using threading and the concurrent framework, with a chat class and a command line reader that sends and receives data.

Explore using Qt 6 QTcpSocket to connect to a web server, perform a basic HTTP-like exchange, and handle socket states, readyRead, DNS lookups, and port 80 via signals and slots.

Learn synchronous tcp sockets in Qt 6 by connecting to a host, blocking the main thread with wait and timeouts, then send a rudimentary http request and read the response.

Wire a TCP socket to a QObject with signals and slots, this lecture demonstrates asynchronous, non-blocking communication on the main thread and common error handling.

Explore asynchronous UDP in Qt 6 core advanced with C++, binding sockets and broadcasting data on a port with QUdpSocket, featuring readyRead signals, and the efficiency of asynchronous patterns.

Learn to build a QTcpServer-based tcp server in Qt by implementing a QTcpServer, handling new connections, and reading data with a QTcpSocket, while listening on a chosen port.

Configure the local certificate chain for the SSL server, load the certificate file into the socket, and use OpenSSL tools to debug handshake failures when testing Qt 6 SSL server.

Compare shared and static libraries in Qt 6 core, covering compile times, deployment, binary compatibility, and why developers often favor shared libraries.

Create a shared library in Qt 6 with C++, configure CMake with add_subdirectory, export symbols, and link the library into an application using the core module.

Explore loading a database driver with QPluginLoader in Qt core advanced, test the plugin, and connect to a remote MySQL database via QSqlDatabase, with cross-platform setup notes.

Inspect installed database drivers with QSqlDriver and QSqlDatabase, print each driver, and explore capabilities such as transactions, query size, blob, unicode, and last insert id, across MySQL and other drivers.

Explore the testing life cycle with QTest and QExec, showing how a test case initializes, runs tests like dog bark, and cleans up after each test.

Master benchmarking with QBenchmark in Qt 6 core advanced. Learn to time code blocks, test for and for each, and compare strings to interpret scores and iterations.

Learn how to skip unreliable tests and anticipate failures using QSkip and QExpect fail, choose abort or continue modes, and interpret X fail indicators.

Package your application with its dependency tree for end users in a simple pattern. Explore basic deployment across operating systems, from self-extracting zips to bootloaders and cloud delivery.

Deploy Qt on Linux by using Linux Deploy Qt and AppImage Kit to bundle libraries into a single, self-contained binary, navigating static linking and Unix packaging complexities for easy distribution.

Build cross-platform installers with the Qt installer framework, supporting online and offline deployments on Linux, Windows, and Mac, with customizable updates and end-user workflows.