JCL Help:NtfsSetDirectoryTreeCompression

 JCL Help: NtfsSetDirectoryTreeCompression Function

FilesandIO.FileSystems.NTFS

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Summary

Sets the compression state of a directory and its contents.

Pascal

 procedure NtfsSetDirectoryTreeCompression(const Directory: string; const State: TFileCompressionState);

Parameters

Parameters	Description
const Directory: string	The name of the directory for which you want to set the compression state.
const State: TFileCompressionState	The desired compression state.

Description

NtfsSetDirectoryTreeCompression sets the compression state of the specified directory, including all of its files and subdirectories. The underlying filesystem must support per stream compression or this function will fail. Currently only LZNT1 is supported as the compression format but this may change in future releases of the Windows operating system.

See Also

TFileCompressionState NtfsSetPathCompression NtfsSetDefaultFileCompression NtfsSetFileCompression NtfsGetCompression

About

Unit

JclNTFS

Donator

Robert Rossmair

Notes

The underlying filesystem must support per stream compression. Currently that means the specified file or directory must reside on an NTFS formatted partition. The FAT filesystem does not support compression. NtfsSetDirectoryTreeCompression will raise an EJclInvalidArgument exception if the 'Directory' parameter does not denote a directory.

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