QT 自定義消息

#define TEST_EVENT QEvent::User + 100

class CVxActuatorMain : public QMainWindow
{
  protected:
      void customEvent(QEvent *event);
}

CVxActuatorMain::CVxActuatorMain(QWidget *parent, Qt::WFlags flags): QMainWindow(parent, flags)
{
     QEvent *event = new QEvent(QEvent::Type(TEST_EVENT));
     qApp->postEvent(this, event);
}

void CVxActuatorMain::customEvent(QEvent *event)
{
     int type = event->type();
     if (type == TEST_EVENT) {
          m_pEdt_Info->append(QObject::tr("Test"));
          event->accept();
     } else {
          QMainWindow::customEvent(event); 
     }
}

本文來自：http://blog.chinaunix.net/uid-20718335-id-2193953.html