Using ZLib unit to compress files vs using ZipForge

Posted by user193655 on Stack Overflow See other posts from Stack Overflow or by user193655
Published on 2010-06-15T08:39:53Z Indexed on 2010/06/15 8:42 UTC
Read the original article Hit count: 284

Filed under:

delphi

|

zip

|

zlib

There are many questions on zipping in Delphi, anyway this is not a duplicate.

I am using ZipForge for zip/unzip capability in my application.

Currently I use 2 features of ZipForge: 1) zip and unzip (!) 2) password protect the archives

Now I am removing the password from all the archives so I need only to zip and unzip files. I zip them just for minimizing bandwith when uploading/downloading files from the server. So my idea is to process all files once for unzipping them (with password) and rezipping them without password.

I have nothing against ZipForge, anyway it is an extra component, every time I upgrade to a newest Delphi version I have to wait for the new IDE support and moreover the more components the more problems during the installation. So since what I do is very simple I'd like to replace ZipForge with 2 simple functinos using the ZLib unit. I found (and tested) the functions here on Torry's.

What do you think of using Zlib unit? Do you see any potential problem that I would not have with ZipForge? Can you comment on speed?

© Stack Overflow or respective owner

Related posts about delphi

TVirtualStringTree compatibility between Delphi 7 and Delphi 2010 - 'Parameter lists differ'

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I've made a form containing a TVirtualStringTree that works in Delphi 7 and Delphi 2010. I notice that as I move between the two platforms I get the message '...parameter list differ..' on the tree events and that the string type is changing bewteen TWideString (D7) and string (D2010). The only… >>> More
Convert Delphi 7 code to work with Delphi 2009

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a String that I needed access to the first character of, so I used stringname[1]. With the unicode support this no longer works. I get an error: [DCC Error] sndkey32.pas(420): E2010 Incompatible types: 'Char' and 'AnsiChar' Example code: //vkKeyScan from the windows unit var KeyString:… >>> More
Book recommendation for moving from Delphi 6 to Delphi 2010

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am a long time Delphi 6 developer. Looking for a book on Delphi 2010. Not only on the new features available in Delphi 2010, but more importantly, guideline on how different it is to develop applications in Delphi 2010, the architecture, standard and convention, etc. Thanks a lot. >>> More
Compile Delphi component package (bpl) for different Delphi versions

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello. The situation is the following. Typically I use RAD Studio 2010 for Delphi development. I have some components I would like to redistribute in binary form (*.bpl without source). But I would like people to be able to use them despite of their Delphi version. But, for example, dcu files can… >>> More
Delphi Speech recognition delphi

as seen on Stack Overflow - Search for 'Stack Overflow'
I need create a programatic equivalent using delphi language... or could someone post a link on how to do grammars in peech recogniton using the delphi. sorry for my english... XML Grammar Sample(s): <GRAMMAR>  <RULE NAME="HelloWorld"… >>> More

Related posts about zip

More CPU cores may not always lead to better performance – MAXDOP and query memory distribution in spotlight

as seen on SQL Blogcasts - Search for 'SQL Blogcasts'
More hardware normally delivers better performance, but there are exceptions where it can hinder performance. Understanding these exceptions and working around it is a major part of SQL Server performance tuning. When a memory allocating query executes in parallel, SQL Server distributes… >>> More
Cisco Unifed Communication integration for Microsoft Lync crashes on Remote Desktop services 2008 R2!

as seen on Server Fault - Search for 'Server Fault'
Hi everybody i have deployed office communication server 2007 R2 and communicator 2007 R2 and i made integration with Cisco Unified Communication Manager 7.1 in my network, i also uses Remote Desktop Servers 2008 R2 for Thin Client Computers, now that i installed Cisco UC integration client for communicator… >>> More
Cisco Unified Communication integration for Microsoft Lync crashes on Remote Desktop services 2008 R2!

as seen on Server Fault - Search for 'Server Fault'
Hi everybody i have deployed office communication server 2007 R2 and communicator 2007 R2 and i made integration with Cisco Unified Communication Manager 7.1 in my network, i also use Remote Desktop Servers 2008 R2 for Thin Client Computers, now that i installed Cisco UC integration client for communicator… >>> More
zip multiple file on the fly and download it as a zip folder php

as seen on Stack Overflow - Search for 'Stack Overflow'
I understand that I can zip multiple file and download it as zip when the files are already exists on ther server. like this. My question is, I have a dropdown list that prompt user download different section of a big form on the fly so I have header below for download it individually. header("Content-type:… >>> More
Have powershell zip the contents of a bunch of folders, individual zip for each folder

as seen on Super User - Search for 'Super User'
Recently, I asked how to do this with a .bat file and an answer was provided. for /D %%d in (*.*) do "C:\Program Files\7-Zip\7z\7za.exe" a -tzip %%d.zip %%d However, this proved useful only for folders that have no spaces in their name. The reason being that batch will do the following: if the… >>> More