/// <summary>
/// Read a piece of info.
/// </summary>
/// <param name="tag">Tag of the info to be read.</param>
/// <param name="fid">Zero-based index of images.</param>
/// <returns>An instance of TIFFinfo that contains the info.</returns>
public virtual TiffData getInfo(int tag, int fid)
{
if (fid < 0 || fid >= IFDs.Length)
{
return(null);
}
TiffStruct fileData = IFDs[fid];
TiffDirData dir = fileData.search(tag);
if (dir == null)
{
return(null);
}
if (dir.Offset > 0)
{
reader.BaseStream.Seek(dir.Offset, System.IO.SeekOrigin.Begin);
dir.readData(reader);
}
return(dir.Data);
}
