Prevent Firing Signals in Qt

Question

We have a QCheckBox object, when user checks it or removes check we want to call a function so we connect our function to stateChanged ( int state )

Answer 1

Qt5.3 introduced the QSignalBlocker class that does exactly what needed in an exception safe way.

if (something) {
   const QSignalBlocker blocker(someQObject);
   // no signals here
}