Threads and QObjects Qt

QT signalslot is not a mechanism of C++, it's just a C++ library which provides such functionality You can implement it yourself with Rust, or

Signals and slots are loosely coupled: A class which emits a signal neither knows nor cares which slots receive the signal Qt's signals and slots mechanism

qt connect signal to slot In this video, you will learn about communicating between two threads using Qt signals and

qt connect signal slot A developer can choose to connect to a signal by creating a function and calling the connect() function to relate the signal to the