![]() The connection can be removed also explicitly - you can remove one particular connection, all connections to given slot or all connections to given object. The signal/slot connection is automatically removed when either emitter or (when the signal is connected to member function) receiver object is destroyed. When the emitter emits signal, all slots connected to it are called and signal arguments are passed to them. The signals are connected to slots, which can be either free functions, member functions or lambdas with the same argument list. ![]() Each signal function can have an arbitrary number of parameters. Signal and slots are a technique introduced in Qt, which allows to intuitively pass events to arbitrary objects and methods without unnecessary boilerplate code (such as various EventListener interfaces in Java).īasically there is an emitter with special functions called signals. Easy-to-use API to connect listeners to events.
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