自訂Signal 與Slot

SignalSlot Connections signal and slot Chapter 17 Advanced Signals and Slots In this chapter, we'll cover more topics concerning signals and slots In the first section, we'll look at additional signal slot qt When one QObject instance is the receiver of a signal, its thread affinity is checked, and by default the signal is delivered directly as a

signal and slot in qt 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