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Format of MRCREQUEST structure

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Offset Size Description

00h

DWORD

pointer to source buffer

04h

WORD

size of source buffer (0000h = 64K)

06h

WORD

UpdateCompress only
(call) offset in source buffer of beginning of changed data
(ret) offset in destination buffer of beginning of changed compressed data

08h

DWORD

pointer to destination buffer must contain original compressed data for UpdateCompress

0Ch

WORD

size of destination buffer (0000h = 64K)
any compression : size of buffer for compressed data
standard decompression : number of bytes to be decompressed
incremental decompression : number of byte to decompress now
(ret) actual size of resulting data

0Eh

WORD

client compressed data storage allocation size

10h

DWORD

incremental decompression state data set to 00000000h before first incremental decompression call

Note:

The source and destination buffers may not overlap.
The source and destination buffer sizes should normally be the same.
Application should not update the contents of the MRCREQUEST structure between incremental decompression calls.