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QtC++ - Lesson 024 Signals and Slot in Qt5
QtC++ - Lesson 024 Signals and Slot in Qt5
Signals and slots can take any number of arguments of any type They are completely typesafe: no more callback core dumps! All classes that inherit from QObject
To successfully connect a signal to a slot , they must have the same parameter types in the same order: connect(ftp,
signal slot qt The slot does not exist for the given receiver ; The signalslot argument lists is not compatible The elements marked with a do not
signal slot SignalType::Arguments, typename SlotType::Arguments>::value), 256, Signal and slot arguments are not compatible ); 257, Q_STATIC_ASSERT_X((QtPrivate
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![signal and slot arguments are not compatible](10018.jpg)