Sets the position in the stream.
Source position: pipes.pp line 57
| public function TOutputPipeStream.Seek( | 
| const Offset: Int64; | 
| Origin: TSeekOrigin | 
| ):Int64; override; | 
| Offset | 
 | Offset, in bytes, starting at Origin. | 
| Origin | 
 | Where to start counting Offset bytes. | 
New position of the stream.
Seek is overridden in TOutputPipeStream. Calling this method will always raise an exception: an output pipe is not seekable.
An EPipeSeek exception is raised if this method is called.