private void WindowClosing(object sender, CancelEventArgs e)
{
FileDownloader.Kill();
VlcApi.Kill();
PodcastFunctions.Kill();
WindowPlacementHandler.GetPlacement(new WindowInteropHelper(this).Handle);
}
protected override void OnSourceInitialized(EventArgs e)
{
base.OnSourceInitialized(e);
WindowPlacementHandler.SetPlacement(new WindowInteropHelper(this).Handle);
OnMainWindowSizeChanged?.Invoke(this.Width, this.Height);
mainPage.Visibility = Visibility.Visible;
}