(Delphi DLL) Create Zip Excluding Files Matching Patterns

How to create a .zip archive excluding (skipping) files that match a set of wildcarded patterns.

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, StringArray, Zip;

...

procedure TForm1.Button1Click(Sender: TObject);
var
zip: HCkZip;
success: Boolean;
sa: HCkStringArray;
recurse: Boolean;
success: Boolean;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

zip := CkZip_Create();

success := CkZip_NewZip(zip,'test.zip');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

// Create a string array object with our set of filename patterns
// to be excluded:
sa := CkStringArray_Create();
success := CkStringArray_Append(sa,'*.bak');
success := CkStringArray_Append(sa,'*.tmp');

// Tell the zip object to use these exclusions:
CkZip_SetExclusions(zip,sa);

// Append a directory tree.  The AppendFiles does
// not read the file contents or append them to the zip
// object in memory.  It simply appends references
// to the files so that when WriteZip (or WriteZipAndClose,
// or WriteExe, etc.) is called, the files are compressed
// and encrypted.
recurse := True;
success := CkZip_AppendFiles(zip,'/temp/a/*',recurse);

success := CkZip_WriteZipAndClose(zip);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

Memo1.Lines.Add('Zip Created!');

CkZip_Dispose(zip);
CkStringArray_Dispose(sa);

end;