TBlowFishDeCryptStream.Seek function

Member of TBlowFishDeCryptStreampublicIn unit BlowFish

Set the stream position.

Declaration

pascal

function 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.