Asynchronous Programming – Part 4: Qt6 with QPromise and QFuture

▤ Summary

This article explains how Qt6 supports asynchronous programming through QPromise, QFuture, and QFutureWatcher. It shows how developers can chain async work with then(), handle cancellations and exceptions, and control execution threads. The piece also covers helper functions such as makeReady, whenAll, whenAny, and connect() for creating and combining futures. The examples focus on building cleaner UI and logic separation in Qt-based applications.

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