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Std memory databuffer compress

std:std.memory.DataBuffer.Compress

Method Compress:DataBuffer( compressionLevel:Int=-1 )#

Compresses data buffer.

The compressionLevel parameter should be a value from 0 to 9 (inclusive), or -1 for default compression (currently 6).

A compreesion level of 1 gives best speed, 9 gives best compression.

This method prepends an 8 byte 'header' to the returned data.