Set the position in the compressed stream.
Source position: zstream.pp line 104
| public function TGZFileStream.seek( | 
| offset: LongInt; | 
| origin: Word | 
| ):LongInt; override; | 
| offset | 
 | Number of bytes to position on. | 
| origin | 
 | Where to start positioning. | 
New position in the stream.
Seek sets the position to Offset bytes, starting from Origin. Not all combinations are possible, see TDecompressionStream.Seek for a list of possibilities.
In case an impossible combination is asked, an EZlibError exception is raised.
| 
 | Move stream position to a certain location in the stream. |