Component DIZipWriter

FireWind

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DIZipWriter

DIZipWriter is a Delphi component to create PKZip-compatible ZIP archives. Archive output is based on TStream and writes directlyfiles (TFileStream), memory (TMemoryStream), or database BLOBs (TBlobStream).

Overview​

DIZipWriter's core functionality is in its main class, TDIZipWriter. It has methods to create new ZIP archives and add ZIP file entries from different data types:
  • Files • Streams • Strings • Memory Buffers
After a ZIP file entry is added, applications can write data to it. Writing can take place in one go or in multiple chunks. There can be any number of chunks of any size, starting from an empty chunk of size zero.
TDIZipWriter writes chunk data directly to the ZIP archive with no need for temporary memory buffers or disk storage. Other than the target ZIP archive, TDIZipWriter does not create any additional files. It can also create ZIP archives enirely in memory, useful for web servers to send ZIP files quickly.
Comments are supported for each ZIP file entry, plus a global comment for the ZIP archive itself. File names of the ZIP entries are automatically encoded to support Unicode. Long file names are supported, too, just as absolute and relative path names.

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FireWind

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DIZipWriter v6.2.1 for Delphi 7-10.1
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valadi

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DIZipWriter 6.9.2 for Delphi 11.x​

DIZipWriter is a Delphi component to create PKZip-compatible ZIP archives. Archive output is based on TStream and writes directlyfiles (TFileStream), memory (TMemoryStream), or database BLOBs (TBlobStream).

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Overview

DIZipWriter's functionality is contained in its main class, TDIZipWriter, with methods to create new ZIP archives and write various types of data like:

  • Files
  • Streams
  • Strings
  • Memory Buffers
DIZipWriter allows applications to write to an archive entry as many times as they seem necessary. This allows to create the new archive entry even before the first chunk of data is available. As data flows in (for example from a slow download), they can write it in small chunks at a time.

DIZipWriter outputs all data to the archive straight away, with no need for temporary storage: It does not create any temporary files and does not use huge amount of memory for buffering. It is nevertheless possible to create an archive entirely in memory if desired.

DIZipWriter stores a global archive comment as well as individual comments for each individual entry. Long file names are supported, just as absolute and relative path names.

History

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DIZipWriter v6.9.2 – 4 Nov 2022​

  • Updated compression libraries:
    • zlib v1.2.13.
    • XZ v5.2.6.
    • Zstandard v1.5.2.
  • Compression algorithms now ship as their own .pas / .dcu unit files.
  • Fix missing DIZlibConsts.pas: All resourcestrings are now in DIZipConsts.
  • New DIZipWriter_DIFileFinder.dpr demo project, upon user request.
DIZipWriter v6.9.2
Delphi 11.x
win32/win64

DIZipWriter-6.9.2_D11x_w3264_Cracked.7z 2.39 MB (2,515,159 bytes)

 

y2nd66

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DIZipWriter

DIZipWriter is a Delphi component to create PKZip-compatible ZIP archives. Archive output is based on TStream and writes directlyfiles (TFileStream), memory (TMemoryStream), or database BLOBs (TBlobStream).

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Overview

DIZipWriter's core functionality is in its main class, TDIZipWriter. It has methods to create new ZIP archives and add ZIP file entries from different data types:
  • Files • Streams • Strings • Memory Buffers
After a ZIP file entry is added, applications can write data to it. Writing can take place in one go or in multiple chunks. There can be any number of chunks of any size, starting from an empty chunk of size zero.
TDIZipWriter writes chunk data directly to the ZIP archive with no need for temporary memory buffers or disk storage. Other than the target ZIP archive, TDIZipWriter does not create any additional files. It can also create ZIP archives enirely in memory, useful for web servers to send ZIP files quickly.
Comments are supported for each ZIP file entry, plus a global comment for the ZIP archive itself. File names of the ZIP entries are automatically encoded to support Unicode. Long file names are supported, too, just as absolute and relative path names.

History

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DIZipWriter 6.10.0 – 22 Nov 2022
  • New TYuPpmdCompressor: Compress using the PPMd compression algorithm. Achieves excellent compression ratios especially for textual data. Decompression is widely supported, for example by 7-Zip.
  • The PPMd compression algorithm is from 7-zip and interfaced in the Yu7zip unit.
  • Update XZ compression library to v5.2.8.
DIZipWriter v6.10.0
Delphi 11.x
win32/win64

DIZipWriter-6.10.0_D11x_w3264_Cracked.7z 2.64 MB (2,774,154 bytes)

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