(Delphi DLL) Transition from Zip.AppendString2 to Zip.AddString

Provides instructions for replacing deprecated AppendString2 method calls with AddString.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, ZipEntry, Zip;

...

procedure TForm1.Button1Click(Sender: TObject);
var
zip: HCkZip;
pathInZip: PWideChar;
textData: PWideChar;
charset: PWideChar;
entryObj: HCkZipEntry;
success: Boolean;
ze: HCkZipEntry;
index: Integer;

begin
zip := CkZip_Create();

// ...
// ...
pathInZip := 'example.txt';
textData := 'This is a test';
charset := 'utf-8';

// ------------------------------------------------------------------------
// The AppendString method is deprecated:

entryObj := CkZip_AppendString2(zip,pathInZip,textData,charset);
if (CkZip_getLastMethodSuccess(zip) = False) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

// ...
// ...

CkZipEntry_Dispose(entryObj);

// ------------------------------------------------------------------------
// Do the equivalent using AddString.

// Instead of returning the zip entry object, we just return success/failure.
success := CkZip_AddString(zip,pathInZip,textData,charset);
if (success = False) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

// Do the following if you need the zip entry object for what was just appended.
// The newly appended entry is the last one.
ze := CkZipEntry_Create();
index := CkZip_getNumEntries(zip) - 1;
CkZip_EntryAt(zip,index,ze);

CkZip_Dispose(zip);
CkZipEntry_Dispose(ze);

end;