I know this is obviously not a new question but so far I have not been able to get it to work. So here is my code. It compiles but when I run it and execute a throw() within my MainWindow class, the throw() seems to get caught by the reimplemented notify, but the notify method seems to keep getting called over and over again until I eventually get a SIGABRT. What am I doing wrong?

Qt Code: 
  1. #include <QtGui/QApplication>
  2. #include "mainwindow.h"
  3.  
  4. class App : public QApplication
  5. {
  6.     public:
  7.  
  8.     App(int& argc, char** argv):QApplication(argc,argv){}
  9.     virtual ~App(){}
  10.  
  11.     virtual bool notify(QObject *receiver, QEvent *event)
  12.     {
  13.         try
  14.         {
  15.             return QApplication::notify(receiver, event);
  16.         }
  17.         catch(std::exception& e)
  18.         {
  19.             QMessageBox::information(0,"","Exception thrown",QMessageBox::Ok);
  20.         }
  21.         return false;
  22.     }
  23. };
  24.  
  25. int main(int argc, char *argv[])
  26. {
  27.     App a(argc, argv);
  28.     MainWindow w;
  29.  
  30.     w.show();
  31.     return a.exec();
  32. }
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