Qt Designer's Signals and Slots Editing Mode

This page was used to describe the new signal and slot syntax during its development The feature is now released with Qt 5

The signals and slots mechanism is type safe The signature of a signal must match the signature of the receiving slot

signal and slot arguments are not compatible In addition to all features provided by Qt the ROOT version supports connecting slots to a class These slots

signal 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