Support for Signals and Slots — PyQt Reference Guide

Problem with signalslot carrying pointer - qt qt connect signal to slot with parameter In debug mode we also annotate the string with the file location for a warning message if the signal connection did not work This was added in qt signal slot example Qt's signals and slots mechanism ensures that if you connect a signal to a slot, the slot will be called with the signal's parameters at the right time

qt connect signal to slot with parameter There are several advantages to using QObject::connect() with function pointers First, it allows the compiler to check that the signal's arguments are