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Creating compressed file form app?

Posted on 1998-02-16
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Last Modified: 2010-04-04
I want to create(compress several files) a Zip-file or some other from my app. Is it possible, how do I do it?
I use Delphi Developer 2.0...
Thanx!
Erik N
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Question by:Erik N
7 Comments
 

Author Comment

by:Erik N
ID: 1359324
Edited text of question
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LVL 4

Expert Comment

by:d003303
ID: 1359325
Check for a compressing component on the DSP. There are some freeware ones available.
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LVL 5

Expert Comment

by:ronit051397
ID: 1359326
You need to zip the file with pkzip?
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LVL 4

Expert Comment

by:itamar
ID: 1359327
Hi Erik,

use this function:

uses ...., ShellAPI; //IMPORTANT

procedure PKZIP(Files, DestFile, WorkDir:string);
var aux            : integer;
    Command, Params: string;
begin
   { convert Pascal string to Null-termintated strings }
   Command := 'PKZIP.EXE' + #0;
   Params := DestFile + ' ' + Files + #0; //Set aditional                                             parameters here
   WorkDir := WorkDir + #0;
   { run/ application/file }
   aux := ShellExecute(Application.MainForm.Handle,'Open',@Command[1],@Params[1],@WorkDir[1], 0);
   if aux < 32 Then
     MessageDlg('Could not execute'+Command,mtError,[mbOK],0);
end;

Example:

procedure TForm1.Button1Click(Sender: TObject);
begin
      PKZIP('*.sys', 'test', 'c:\');
end;

IHTH,
Itamar

P.S.: Any doubts, place a comment before rejecting the answer.
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Author Comment

by:Erik N
ID: 1359328
Dear Itamar.
This worked just fine, however I want to compress the files without being dependent on some external program, like Pkzip.exe. Is this possible ?
Thank you Itamar, for your time...
/Erik N
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LVL 4

Accepted Solution

by:
itamar earned 200 total points
ID: 1359329
Ok, I'll try again.

If you don't need ZIP format (as you said: "...Zip-file or some other...") you can use this third part component:

info: http://sunsite.icm.edu.pl/delphi/ftp/d10free/tlzrw1.htm 
Download: http://sunsite.icm.edu.pl/delphi/ftp/d10free/tlzrw1.zip

If you prefer ZIP files without external calling, try:

info: http://www.concentric.net/~twojags/
But this last one is in beta version and it's not free.

IHTH
0
 

Author Comment

by:Erik N
ID: 1359330
Thank you itamar !
Sorry, I wanted the ZIP-format or some other, but I didn't want to use the external call (my mistake).

/Erik N
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