How to create a splash screen with an induced delay

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We have QSplashScreen which is used to cover up the starting delay of the program. Some times the programs might be quick enough, so that the splash screen may not be visible. We may induce some delay to show the splash, as a decoration!

Single shot timer QTimer will do.

#include <QApplication>
#include <QSplashScreen>
#include <QTimer>
#include "mainwindow.h"

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QPixmap pixmap("splash.jpg");
    QSplashScreen splash(pixmap, Qt::WindowStaysOnTopHint);
    splash.show();
    QTimer::singleShot(5000, &splash, &QWidget::close); // keep displayed for 5 seconds
    MainWindow mainWin;
    mainWin.showMaximized();
    return app.exec();
}