Undocumented functions of NTDLL


RtlGetCompressionWorkSpaceSize
RtlGetCompressionWorkSpaceSize

NTSYSAPI 
NTSTATUS
NTAPI

RtlGetCompressionWorkSpaceSize(
IN ULONG CompressionFormat, OUT PULONG pNeededBufferSize, OUT PULONG pUnknown );


CompressionFormat


See RtlCompressBuffer for valid CompressionFormat flags.


pNeededBufferSize


You must allocate temporary compression buffer for system internal use in compression process. Buffer must have pNeededBufferSize bytes length.


pUnknown


-?, propably PageSize (0x4000).




Requirements:
Library: ntdll.lib




See also:
RtlCompressBuffer
RtlDecompressBuffer