New-style Signal and Slot Support — PyQt 4 Reference Guide

Each PyQt widget, which is derived from QObject class, is designed to emit 'signal' in response to one or more events The signal on its own does not perform

A slot is called when a signal connected to it is emitted Slots are normal C++ functions and can be called normally; their only special feature is that signals

signal and slot Prefer to use normalised signalslot signatures That is, remove all dispensable whitespace, const-& , and top-level const If you're in doubt about how the

signal and slot 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