[Overview][Constants][Types][Classes][Index] Reference for unit 'BlowFish' (#fcl)

TBlowFishDeCryptStream.Seek

Set the stream position.

Declaration

Source position: blowfish.pp line 79

public function TBlowFishDeCryptStream.Seek(

  const Offset: Int64;

  Origin: TSeekOrigin

):Int64; override;

Arguments

Offset

  

Offset. Only zero or positive values allowed.

Origin

  

Origin. Only soFromCurrent allowed.

Function result

New position in the stream

Description

Seek emulates a forward seek by reading and discarding data. The discarded data is lost. Since it is a forward seek, this means that only soFromCurrent can be specified for Origin with a positive (or zero) Offset value. All other values will result in an exception. The function returns the new position in the stream.

Errors

If any other combination of Offset and Origin than the allowed combination is specified, then an EBlowFishError exception will be raised.

See also

Read

  

Read data from the stream

EBlowFishError

  

Exception used to report errors.


Documentation generated on: Nov 14 2015