I found only one way to make splash display time longer.
That is changing ApplicationDefinition to Page and configuration it\'s time.
But I need ApplicationDefin
You can use, as Jake Glines wrote, System.Threading
using System.Threading;
public MainWindow()
{
SplashScreen splash = new SplashScreen("splash.jpg");
splash.Show(true);
Thread.Sleep(1500);
InitializeComponent();
}
Or you can use timer/progressbar on it, and make it depend on real loading, not just imaginary.