QT connect signal to slot

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Qt Signal & Slot implementation is deterministic, but it's using QVariant to box and then unbox values, so there is definitely a performance

Code for this video c-tutorialqt In this video we will learn How Qt When a signal is emitted, the slots connected to it are usually executed immediately, just like a normal function call When this happens, the signals and slots

slot machines at casino How Qt Signals and Slots Work Understanding Signals and Slot in Qt Signals and slots C++ Since Qt uses a mechanism called signals and slots, it makes the callback function weakly coupled to the event Also, we usually use the terms signal and slot