Qt 4.8: myeventfilter.cpp Example File (demos/mobile/quickhit/myeventfilter.cpp)

Qt Reference Documentation

# myeventfilter.cpp Example File

demos/mobile/quickhit/myeventfilter.cpp

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     #include <QDebug>
     #include "myeventfilter.h"

     MyEventFilter::MyEventFilter(QObject *parent) :
         QObject(parent)
     {
     }

     MyEventFilter::~MyEventFilter()
     {
     }

     bool MyEventFilter::eventFilter(QObject *obj, QEvent *event)
     {
         // http://doc.trolltech.com/4.7/qevent.html#QEvent

         // QEvent::ActivationChange : The application has been made available to the user.

         if (event->type() == QEvent::ActivationChange) {
             emit activationChangeFiltered();
             qDebug() << "ActivationChangeFiltered()";
             return false;
         } else {
             // standard event processing
             return QObject::eventFilter(obj, event);
         }
     }