JCL Help:TJclSectoredStream.BeforeBlockWrite

 JCL Help: TJclSectoredStream.BeforeBlockWrite Method

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Summary

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Pascal

 protected procedure BeforeBlockWrite; virtual;

Description

Virtual method called before a block of data is written to storage stream. As implemented in this class, this function does nothing. In order to compute checksums and/or crypt data, a class that inherits from TJclSectoredStream has to override this procedure.
When this function is called, bytes in FBuffer from 0 to FCurrentBufferSize-1 were written by calls to TStream.Write.
When this function returns, bytes in FBuffer from 0 to FCurrentBufferSize+FBlockOverhead-1 will be written to storage stream.

See Also

TJclSectoredStream.AfterBlockRead

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Florent Ouchet

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