#ifdef QT5 #include #else #include #endif #include #include "mainwindow.h" static QtMessageHandler default_message_handler; void my_message_handler (QtMsgType type, QMessageLogContext const& context, QString const& msg) { // Handle the messages! // Call the default handler. (*default_message_handler) (type, context, msg); } int main(int argc, char *argv[]) { default_message_handler = qInstallMessageHandler (my_message_handler); QApplication a {argc, argv}; MainWindow w; w.show (); return a.exec (); }