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RtlCompressBuffer
..msdn Add comment W32 Constants Translate this page |
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Compresses a buffer and can be used by a file system driver to facilitate the implementation of file compression. |
| | | Code examples: | | |
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| | | Declaration: | | |
NTSTATUS RtlCompressBuffer(
__in USHORT CompressionFormatAndEngine,
__in PUCHAR UncompressedBuffer,
__in ULONG UncompressedBufferSize,
__out PUCHAR CompressedBuffer,
__in ULONG CompressedBufferSize,
__in ULONG UncompressedChunkSize,
__out PULONG FinalCompressedSize,
__in PVOID WorkSpace
);
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| | | | FoxPro declaration: | | |
DECLARE INTEGER RtlCompressBuffer IN ntdll;
SHORT CompressionFormatAndEngine,;
INTEGER UncompressedBuffer,;
LONG UncompressedBufferSize,;
INTEGER CompressedBuffer,;
LONG CompressedBufferSize,;
LONG UncompressedChunkSize,;
LONG @FinalCompressedSize,;
INTEGER WorkSpace
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| | | | Parameters: | | CompressionFormatAndEngine [in]
A bitmask specifying the compression format and engine type.
UncompressedBuffer [in]
A pointer to a caller-allocated buffer (allocated from paged or non-paged pool) containing the data to be compressed. This parameter is required and cannot be NULL.
UncompressedBufferSize [in]
Size, in bytes, of the UncompressedBuffer buffer.
CompressedBuffer [out]
A pointer to a caller-allocated buffer (allocated from paged or non-paged pool) receiving the compressed data. This parameter is required and cannot be NULL.
CompressedBufferSize [in]
Size, in bytes, of the CompressedBuffer buffer.
UncompressedChunkSize [in]
The chunk size to use when compressing the UncompressedBuffer buffer. This parameter must be one of the following values: 512, 1024, 2048, or 4096 (system default).
FinalCompressedSize [out]
A pointer to a caller-allocated variable which receives the size, in bytes, of the compressed data stored in CompressedBuffer. This parameter is required and cannot be NULL.
WorkSpace [in]
A pointer to a caller-allocated work space buffer used by the RtlCompressBuffer function during compression. |
| | | Return value: | | | Returns STATUS_SUCCESS (0) or an appropriate error code. |
| | | My comment: | | | See also: RtlDecompressBuffer, RtlGetCompressionWorkSpaceSize |
| | | Word Index links for the RtlCompressBuffer : | | |
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| | | Translate this page: | | | | | | • | | | Created: | 2010-08-12 18:22:26 | | Modified: | 2010-08-12 18:25:58 |
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