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Resolved ExtractorObject Question

  1. How-to
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  1. Roland Smith
    Roland Smith
  2. PowerBuilder
  3. Saturday, 22 June 2019 02:27 AM UTC

I was looking at the new ExtractorObject in PB 2019. I found a use for it extracting a string from a blob that was GZip encoded by another non-PB program.

The problem is that I want to do the same in PB 2017.

I looked at the Windows Compression API but it doesn't appear to support GZip. I am wondering how the ExtractorObject works so it can be reproduced in PB 2017.

 

 

PB 2019 Runtime DLL library generator.
UPDATED - DW object, row-level properties access
Responses (3)
Roland Smith
Roland Smith Accepted Answer Pending Moderation
  1. Monday, 24 June 2019 16:33 PM UTC
  2. PowerBuilder
  3. # 1

If this goes from a theoretical to a real requirement, I'll likely use my ZLib library.

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Chris Pollach @Appeon
Chris Pollach @Appeon Accepted Answer Pending Moderation
  1. Monday, 24 June 2019 15:35 PM UTC
  2. PowerBuilder
  3. # 2

Hi Roland;

  Suggestion ... build a PB2019 App EXE that does this decompression and then call it from your PB2017 based App's or better yet .. upgrade to PB2019.

Regards ... Chris

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Bruce Armstrong
Bruce Armstrong Accepted Answer Pending Moderation
  1. Sunday, 23 June 2019 20:36 PM UTC
  2. PowerBuilder
  3. # 3

I'm 90% confident that they're using the 7zip libraries under the covers.  FWIW, there's a 7zip package in Nuget that contains libraries for both C++ and C# projects.

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