Qt 啟動畫面

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
 //設定程式啟動畫面
 QSplashScreen *splash = new QSplashScreen;
 splash->setPixmap(QPixmap(":/images/j7.jpg"));//載入啟動圖片
 splash->show();
 Qt::Alignment topRight = Qt::AlignRight | Qt::AlignTop;
 splash->showMessage(QObject::tr("Setting up the main window..."),topRight,Qt::white);
 splash->showMessage(QObject::tr("Establishing connection..."),topRight,Qt::white);
 QDateTime n2 = QDateTime::currentDateTime();//擷取目前時間；
 QDateTime now;
 do
 {
  now = QDateTime::currentDateTime();
 } while (n2.secsTo(now) <= 5);//設定啟動時間（延時）為5秒
 a.setWindowIcon(QIcon(":/images/7.bmp"));
     MainWindow w;
    w.show();
 splash->finish(&w);//將控制權交給mainWin表單
 delete splash;
    return a.exec();
}

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