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

signal slot   Dan signal and slot

Each signal function can have an arbitrary number of parameters The signals are connected to slots, which can be either free functions, member functions or

Signals and slots are used for communication between objects The signalslot mechanism is a central feature of Qt and probably the part that differs most from Check existing signalslot connections Select the emit button in the Object Browser or the Widget Inspector tool, and open the Connections tab on the right

reactoonz slot 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 In Qt, we have an alternative to the callback technique: We use signals and slots A signal is emitted when a particular event occurs Qt's