private static double GetExifRational (Tiff.ImageDirectory directory, Tiff.TagId id)
{
if (directory == null)
return 0;
Tiff.DirectoryEntry entry = directory.Lookup (id);
if (entry == null)
return -1;
return entry.RationalValue [0].Value;
}
private static string GetExifString (Tiff.ImageDirectory directory, Tiff.TagId id)
{
if (directory == null)
return null;
Tiff.DirectoryEntry entry = directory.Lookup (id);
if (entry == null)
return null;
return entry.ValueAsString [0];
}
