private void windowsToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            if (_formWindows == null || _formWindows.IsDisposed)
            {
                _formWindows = new FormWindows(_applicationSettingsService);
                _formWindows.SubscribeToList(_imageViewFormList);
            }

            if (!_formWindows.Visible)
            {
                _formWindows.Show(this);
            }
        }
        private void OnImageLoadComplete(object sender, EventArgs e)
        {
            if (!timerSlideShow.Enabled)
            {
                return;
            }

            if (_formWindows == null)
            {
                _formWindows = new FormWindows(_applicationSettingsService);
                _formWindows.SubscribeToList(_imageViewFormList);
            }

            _formWindows.RestoreFocusOnPreviouslyActiveImageForm();
        }