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Signals and slots are used for communication between objects. The signals and slots mechanism is a central feature of Qt. In GUI programming, when we change one widget, we often want another widget to be notified. More generally, we want objects of any kind to be able to communicate with one another. Signal/Slot between Threads Qt 5 | Qt Forum
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Signals and slots - Mastering Qt 5 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 triggered when the user clicks on the button. The QApplication class has a slot quit() function, which can be ... Signals & Slots | QtCore 5.2 Qt Core Signals & Slots Qt 5.2.2 Reference Documentation Contents Introduction Signals and Slots A Small Example Building the Example Signals Slots ... Signals and slots - Mastering Qt 5
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