qt signal and slot
Understanding the mechanism of signals and slots
qt signal and slot
website qt signal and slot In each QMetaObject, the slots, signals and other invokable methods of that object are given an index, starting from 0 They are ordered so that qt slot signal 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
qt signal and slot 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 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 already provides signals and slots for its classes, which you can use in your application For example, QPushButton has a signal clicked() , which will be
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