''' <summary>
''' Sets the custom thumbnail caption.
''' </summary>
''' <param name="thumbnailViewer">The thumbnail viewer.</param>
Public Shared Sub SetThumbnailCaption(thumbnailViewer As Vintasoft.Imaging.Wpf.UI.WpfThumbnailViewer)
    thumbnailViewer.ThumbnailCaption.CaptionFormat = "File {Filename}, page {PageNumber}"
    thumbnailViewer.ThumbnailCaption.IsVisible = True
End Sub

/// <summary>
/// Sets the custom thumbnail caption.
/// </summary>
/// <param name="thumbnailViewer">The thumbnail viewer.</param>
public static void SetThumbnailCaption(Vintasoft.Imaging.Wpf.UI.WpfThumbnailViewer thumbnailViewer)
{
    thumbnailViewer.ThumbnailCaption.CaptionFormat = "File {Filename}, page {PageNumber}";
    thumbnailViewer.ThumbnailCaption.IsVisible = true;
}