AcManager.Pages.Windows.MainWindow.IFancyBackgroundListener C# (CSharp) 메소드

        void IFancyBackgroundListener.ChangeBackground(string filename) {
            var backgroundContent = BackgroundContent;
            FancyBackgroundManager.UpdateBackground(this, ref backgroundContent);
            if (!ReferenceEquals(backgroundContent, BackgroundContent)) {
                BackgroundContent = backgroundContent;
            }
        }