本文整理自网络，侵删。
Daniel注：是一套不错的库，我写的这篇简短的介绍希望对大家有用^_^
ZlibEx
作者： brent sherwood(http://www.base2ti.com/)
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最新版下载Download
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http://www.base2ti.com/cgi-bin/download.exe?folder=delphi+zlib&file=delphi+zlib+1.2.3
this software is provided "as-is", without any express or implied warranty.
in no event will the authors be held liable for any damages arising from the
use of this software.
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安装Installation
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首先，拷贝所有文件到一个文件夹（比如，c:\delphi\zlib）。
再把这个路径添加到environment options中的library path中。
最后，在需要使用的时候use zlibex
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压缩和解压How to use
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//压缩Buffer
procedure ZCompress(const inBuffer: Pointer; inSize: Integer;
out outBuffer: Pointer; out outSize: Integer;
level: TZCompressionLevel);
//解压Buffer
procedure ZDecompress(const inBuffer: Pointer; inSize: Integer;
out outBuffer: Pointer; out outSize: Integer; outEstimate: Integer);
//压缩流
procedure ZCompressStream(inStream, outStream: TStream;
level: TZCompressionLevel);
//解压流
procedure ZDecompressStream(inStream, outStream: TStream);
//压缩字符串
function ZCompressStr(const s: String; level: TZCompressionLevel): String;
//解压字符串
function ZDecompressStr(const s: String): String;
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文件清单Content
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zlibex.pas
objects files used by zlibex.pas
adler32.obj
compress.obj
crc32.obj
deflate.obj
infback.obj
inffast.obj
inflate.obj
inftrees.obj
trees.obj
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zlib 源文件(http://www.gzip.org/zlib)
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adler32.c
compress.c
crc32.c
deflate.c
example.c
gzio.c
infback.c
inffast.c
inflate.c
inftrees.c
minigzip.c
trees.c
uncompr.c
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