New Signal Slot Syntax

Qt Signal & Slot implementation is deterministic, but it's using QVariant to box and then unbox values, so there is definitely a performance

In this example - we create a 3 way connection - the name editbox object textChanged signal, to the work window recive slot

qt connect signal to slot with parameter 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

qtech slot For example, instead of Having written a few kioslaves decades ago, I feel pretty qualified to comment on Qt's signalslot performance