Understanding Qt's Event Loop and SignalsSlots

Also, we usually use the terms signal and slot in Qt A signal is emitted when a particular event occurs A slot is a function that is called in response to a

QT library · Qt::DirectConnection

signal and slot 使用Qt的信号和槽（Signals and Slots）机制有以下好处：松耦合：通过信号和槽，对象之间的通信是松耦合的。发送者不需要知道接收者的具体实现细节，

signal slot Signals and slots are the backbone of event-driven programming in Qt, offering a flexible and efficient mechanism for inter-object communication