Zip/Compress files in C/SIDE

Waldo · 2003-04-17

I would have to compress all files within a specific folder. Does anyone know how I can do this from within Navision C/SIDE. May be there is some kind of OCX or Automation Server I can use. I thought of using pkzip in a SHELL-command, but isn't there a better solution?

Luc_VanDyck · 2003-04-17

Have a look at zlib http://www.gzip.org/zlib/
A DLL of this compression library can be found at http://www.winimage.com/zLibDll/

I did not try this, but maybe you can call this DLL from C/AL code.

Waldo · 2003-04-17

Probably this is a stupid question, but I do not seem to succeed in registring the dll with regsvr32. I get the message "zlib.dll was loaded, but the DllRegisterServer entry point was not found."

Can you help me with this?

Luc Van Dyck wrote:

Have a look at zlib http://www.gzip.org/zlib/
A DLL of this compression library can be found at http://www.winimage.com/zLibDll/

I did not try this, but maybe you can call this DLL from C/AL code.

Luc_VanDyck · 2003-04-17

I searched a while and found this page http://www.dogma.net/markn/FAQ.html#Q27 where you can download zlibocx2.dll. This file can be registered using regsvr32.

Some C/AL code:

x.InputFileName := 'd:\words_dutch.txt';
x.OutputFileName := 'd:\words_dutch.zip';
x.Compress;

x.InputFileName := 'd:\words_dutch.zip';
x.OutputFileName := 'd:\words_dutch2.txt';
x.Decompress;

where x is a OCX-variabele, pointing to "zlibIF Class".

Waldo · 2003-04-17

Thanks for your time!

I was looking too for some OCX-possibilities, and one I found:http://www.freedownloadscenter.com/Programming/Visual_Basic_Components_H-P/Maquisistem_Zip_Compress_OCX.html. Now, this always shows a Pop-up, and it didn't seem to work properly (I always got an error 'bad file name' or something).

Now, I'm trying your possibility, but here, it seems that I only can compress 1 file to 1 zip-file. Now, my main intention was compressing a folder to one file (because, later on, I have to e-mail this file).

Waldo · 2003-04-17

A solution COULD be the following:

vZipFile := vDirectory + 'NameZipfile.zip';

vZipCommand := 'pkzip ' + vZipFile + ' ' + vDirectory + '*.html';

SHELL(vZipCommand);

Now, this has as major disadvantage that it is a DOS-routine, which means, that it can't use the long Windows-names. E.g. "Waldos zip file.html" becomes something like "waldos~1.HTM". Also the zip-file itself can't have a long file-name. So, if possible, I would prefer another solution.

Luc_VanDyck · 2003-04-17

What version of pkzip are you using? Version 4.00 DOES support long filenames.

Waldo · 2003-04-17

Indeed, I was using 2.50.
I found a better pkzip now at http://burks.brighton.ac.uk/burks/software/compress/install.sw?3.cutezip2.exe. It's not pkzip, but pkzipc and works slightly different. Here is my code:

vZipFile := vDirectory + 'ZipFile.zip';
vZipCommand := 'pkzipc -add ' + vZipFile + ' ' + vDirectory + '*.html';
SHELL(vZipCommand);

Thanks for the help!

PWolters · 2003-04-22

Hi! I'm using the Zip Compress OCX from Binarywork in version 3.0.98. Works fine.

Waldo · 2006-06-07

These posts are from 3 years ago ... are there new (free) possibilities to ZIP files from Navision?

alberto.done · 2006-12-04

You can use "Microsoft Shell Controls And Automation" to zip an entire folder. Parse FolderItems for specified files.

//Variable
IntegerValue	Integer		
i	Integer		
Shell32	Automation	'Microsoft Shell Controls And Automation'.Shell	
SrcFolder	Automation	'Microsoft Shell Controls And Automation'.Folder	
DstFolder	Automation	'Microsoft Shell Controls And Automation'.Folder	
SrcItems	Automation	'Microsoft Shell Controls And Automation'.FolderItems3	
TextFile	File		
ZipFileName	Text		1024
SourceFolderName	Text		1024



//Code

//Zip file Initialization
TextFile.CREATE(ZipFileName);
TextFile.TEXTMODE(FALSE);

IntegerValue:=101010256;
TextFile.WRITE(IntegerValue);
IntegerValue:=0;
FOR i:=1 TO 9 DO
  TextFile.WRITE(IntegerValue);

TextFile.CLOSE;

IF CREATE(Shell32) THEN;
SrcFolder:=Shell32.NameSpace(SourceFolderName);
DstFolder:=Shell32.NameSpace(ZipFileName);
SrcItems:=SrcFolder.Items;
DstFolder.CopyHere(SrcItems);

You can find 'Microsoft Shell Controls And Automation' in all Microsoft Windows computer from W95. \:D/

IB · 2007-01-05

Previous way of compressing file is pretty good and simple. But You must take care that compressed folders are supported only in XP/2003 Windows versions. For 98/ME/2000 You need to register additional DLL's which could be taken from MS udpate site (searching here)
After this, copy files from downloaded file: zipfldr.dll,dunzip32.dll and dzip32.dll into Windows\System or Windows\System32 (depends on OS) directory and register zipfldr.dll with regserv:
regserv32 X:\windows\system32\zipfldr.dll
Should work:)
Thanks for the way described.
Maybe somebody tried using CAB?:)

AndersNordmann · 2007-02-02

Hi

When testing Albertos code example above I'm getting an error: "An exception occurred from an external component."

What am I doing wrong?

Specifically the error occours when executing the "DstFolder:=Shell32.NameSpace(ZipFileName);" statement - I'm guessing because ZipFileName points to a file and not a folder?

// Vars
IntegerValue	Integer		
i	Integer		
Shell32	Automation	'Microsoft Shell Controls And Automation'.Shell	
SrcFolder	Automation	'Microsoft Shell Controls And Automation'.Folder	
DstFolder	Automation	'Microsoft Shell Controls And Automation'.Folder	
SrcItems	Automation	'Microsoft Shell Controls And Automation'.FolderItems3	
TextFile	File		
ZipFileName	Text		1024
SourceFolderName	Text		1024

//Code
ZipFileName := 'c:\test.zip';
SourceFolderName := 'c:\test';

TextFile.CREATE(ZipFileName); 
TextFile.TEXTMODE(FALSE); 


IntegerValue:=101010256; 
TextFile.WRITE(IntegerValue); 
IntegerValue:=0; 
FOR i:=1 TO 9 DO 
  TextFile.WRITE(IntegerValue); 

TextFile.CLOSE; 

if isclear(Shell32) then
  CREATE(Shell32);

SrcFolder:=Shell32.NameSpace(SourceFolderName); 
DstFolder:=Shell32.NameSpace(ZipFileName); 
SrcItems:=SrcFolder.Items; 
DstFolder.CopyHere(SrcItems);

Besides this I'd like to know which modifications I have to make in the code in order to be able to compress (and de-compress) single files?

Thanks in advance!

IB · 2007-02-02

Which version of OS are u using? Is ZIP Folders functionality enabled?
About working with seperate files, it's the same as working with standart folders. F.e. you can define Folder.CopyHere(filename) and so on.

AndersNordmann · 2007-02-03

Thanks for your reply.

I'm on WinXP.
I don't know if ZIP folders functionality is enabled or disabled - is this configurable? I was hoping to write code that would be executable on any WinXP machine.

If I understand you correct,

//Var
Shell32   Automation   'Microsoft Shell Controls And Automation'.Shell   
SrcFile   Automation   'Microsoft Shell Controls And Automation'.Folder

//Code
SomeFileName := 'c:\test.txt';
SrcFile := Shell32.NameSpace(SomeFileName)

is legal?

IB · 2007-02-05

AndersNordmann wrote:

Thanks for your reply.

I'm on WinXP.
I don't know if ZIP folders functionality is enabled or disabled - is this configurable? I was hoping to write code that would be executable on any WinXP machine.

on WindowsXP it's enabled by default.
You can re-enable it by running (if it is turned off):
regsvr32 zipfldr.dll

AndersNordmann wrote:

If I understand you correct,

//Var
Shell32   Automation   'Microsoft Shell Controls And Automation'.Shell   
SrcFile   Automation   'Microsoft Shell Controls And Automation'.Folder

//Code
SomeFileName := 'c:\test.txt';
SrcFile := Shell32.NameSpace(SomeFileName);

is legal?

Not exactly, use like this:

//Var
Shell32   Automation   'Microsoft Shell Controls And Automation'.Shell   
ZIPFolder   Automation   'Microsoft Shell Controls And Automation'.Folder
ZipFile  Text250
SomeFileName Text250
IntVal Integer


//Code
//>>CREATING ZIP FILE
ZipFile.CREATE('c:\myzipfolder.zip'); //here goes Your zip filename
ZipFile.TEXTMODE(FALSE); //binary mode
IntVal:=101010256; 
//>>writing zip header
ZipFile.WRITE(IntVal); 
IntVal:=0;
FOR i:=1 TO 9 DO 
  ZipFile.WRITE(IntVal); 
//<<writing zip header
ZipFile.CLOSE;
//<<zip file created c:\myzipfolder.zip

CREATE(Shell32); //creating shell automation
ZIPFolder:=Shell32.NameSpace('c:\myzipfolder.zip'); //ZIPFolder is now our folder in zip format which will be used
SomeFileName := 'c:\test.txt';
//>>Copying file to our zip folder
ZIPFolder.CopyHere(SomeFileName);
CLEAR(Shell32);
//<<finish:)

Hope it helps

AndersNordmann · 2007-02-05

I've tried registering the dll (zipfldr.dll) but the code still errors out.

// Vars
IntegerValue	Integer
i	Integer		
Shell32	Automation	'Microsoft Shell Controls And Automation'.Shell	
ZipFolder	Automation	'Microsoft Shell Controls And Automation'.Folder	
ZipFileName	Text		1024
ZipFile	File		
SourceFileName	Text		1024

//Code 
ZipFile.CREATE('c:\myzipfolder.zip'); //here goes Your zip filename 
ZipFile.TEXTMODE(FALSE); //binary mode 
IntegerValue:=101010256;
ZipFile.WRITE(IntegerValue);
IntegerValue:=0;
FOR i:=1 TO 9 DO 
  ZipFile.WRITE(IntegerValue);
ZipFile.CLOSE; 

CREATE(Shell32);
ZipFolder:=Shell32.NameSpace('c:\myzipfolder.zip');
SourceFileName := 'c:\myfile.txt';
ZipFolder.CopyHere(SourceFileName);
CLEAR(Shell32);

The error occours when executing:

ZipFolder:=Shell32.NameSpace('c:\myzipfolder.zip');

If I replace 'c:\myzipfolder.zip' with 'c:\myzipfolder' (and create the folder beforehand) I get no error, but obviously no zipfile either

Maybe the zipfolder-functionality isn't completely enabled since it looks like windows won't recognize the zipfile as a folder??? - or maybe there is another way to make windows recognize the zipfile as a folder??

IB · 2007-02-05

Seems that You've installed archiver which disabled zipfolders functionality and also associated zip files?
Can You view files in zip folder using explorer? Put one zip file to disk c, open explorer and on left treebar you must see it (folder with zigzag).

AndersNordmann · 2007-02-05

Thanks for your help IB.

It seems that registrering zipfldr.dll requires re-boot in order to take effect

It works now, but I think I have to solve this using a different approach

- registrering the dll from navision is ok, but booting the machine, I think not...

I think I'll be going with ZlibOCX2.dll which I can export and register when I need it.

Btw. do you know how well the compression within BLOB-fields work?

IB · 2007-02-05

About ZLibOCX - I prefer MS OS features more, but it's your choice

In my case rebooting pc is not a problem

Also I don't like licensing problems with such OCXes, no support and so on

About BLOB's - actually have no idea

Till now

Timo_Lässer · 2007-11-28

Is it possible that you provide a similar function for "UnZipFolder"?
Thanks in advance!

alberto.done wrote:

You can use "Microsoft Shell Controls And Automation" to zip an entire folder. Parse FolderItems for specified files.

//Variable
IntegerValue	Integer		
i	Integer		
Shell32	Automation	'Microsoft Shell Controls And Automation'.Shell	
SrcFolder	Automation	'Microsoft Shell Controls And Automation'.Folder	
DstFolder	Automation	'Microsoft Shell Controls And Automation'.Folder	
SrcItems	Automation	'Microsoft Shell Controls And Automation'.FolderItems3	
TextFile	File		
ZipFileName	Text		1024
SourceFolderName	Text		1024



//Code

//Zip file Initialization
TextFile.CREATE(ZipFileName);
TextFile.TEXTMODE(FALSE);

IntegerValue:=101010256;
TextFile.WRITE(IntegerValue);
IntegerValue:=0;
FOR i:=1 TO 9 DO
  TextFile.WRITE(IntegerValue);

TextFile.CLOSE;

IF CREATE(Shell32) THEN;
SrcFolder:=Shell32.NameSpace(SourceFolderName);
DstFolder:=Shell32.NameSpace(ZipFileName);
SrcItems:=SrcFolder.Items;
DstFolder.CopyHere(SrcItems);

You can find 'Microsoft Shell Controls And Automation' in all Microsoft Windows computer from W95. \:D/

Eugene · 2007-11-29

ZIP Folders is great of cause but how does one create a NEW zip file with it ? As far as i can find it only allows to decompress from existing zip or add new files to EXISTING zip

HelGon · 2008-11-19

Hi, I need to create a Zip file password protected. anyone knows

CBT · 2009-11-18

Hi Guys,

have anyone a solution to make a GZIP (Not ZIP) File ?
The GZIP dll and the GZIP OCX from Page 1 doesn work in my case.

Any Ideas ?

Thx & Greetz
CBT

MatStephensSandA · 2010-08-19

Hi All.

I (like many before) have to zip a bunch of files then email them to a customer .
I have read many strings on the subject and the blow code (kind of) works for me

// Vars
IntegerValue	Integer		
i	Integer		
Shell32	Automation	'Microsoft Shell Controls And Automation'.Shell	
SrcFolder	Automation	'Microsoft Shell Controls And Automation'.Folder	
DstFolder	Automation	'Microsoft Shell Controls And Automation'.Folder	
SrcItems	Automation	'Microsoft Shell Controls And Automation'.FolderItems3	
TextFile	File		
ZipFileName	Text		1024
SourceFolderName	Text		1024
//Code
ZipFileName := 'c:\test.zip';
SourceFolderName := 'c:\test';
TextFile.CREATE(ZipFileName); 
TextFile.TEXTMODE(FALSE); 
IntegerValue:=101010256; 
TextFile.WRITE(IntegerValue); 
IntegerValue:=0; 
FOR i:=1 TO 9 DO 
  TextFile.WRITE(IntegerValue); 
TextFile.CLOSE; 
if isclear(Shell32) then
  CREATE(Shell32);

SrcFolder:=Shell32.NameSpace(SourceFolderName); 
DstFolder:=Shell32.NameSpace(ZipFileName); 
SrcItems:=SrcFolder.Items; 
DstFolder.CopyHere(SrcItems);

but im an inquisitive so and so... therefore i have a few questions and would like to take the process to another level of complexity
first my questions
1.What is the relevance of
IntegerValue:=101010256;
2.Whats the point of the loop?
FOR i:=1 TO 9 DO

Now for the complexity
If (as i suspect) the loop is simply a filler of time to allow for the zip process to work, then how would I develop the code to allow for a variable number of files. For example I am trying to compress our Proof Of Delivery .tif files per customer and Email them to the customer. One customer folder might contain 1800 documents the next may only hold 1. so putting a static loop of 9 may delay the process where it doesnt need to be delayed.

A further complexity issue relates to the email section of the process. Due to email poliocy, the biggest email attachment i can send is 3 Meg. So how would i split this zipping process to create a new zip file each time the file exceeds the 3MB size limit??

As always, thanks in advance

M@

jhenav · 2010-11-22

Anyone knows something about Password?

euekim · 2012-06-08

jhenav wrote:

Anyone knows something about Password?

this is an old story.. hope u fixed it.. if not hope this will help u

http://www.mibuso.com/dlinfo.asp?FileID=1445

sanjeevasawale · 2012-06-14

euekim wrote:

jhenav wrote:

Anyone knows something about Password?

this is an old story.. hope u fixed it.. if not hope this will help u

http://www.mibuso.com/dlinfo.asp?FileID=1445

Hi,

URL given above is dependent on 3rd party tool. Instead of that with the existing 'Microsoft Shell Controls And Automation' is it possible to use Password?

Thanks in advance.

Regards,

Sanjeev

euekim · 2013-04-15

yes u can used it to zip a file with password.

hope it helps

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