(Delphi DLL) Retrieve UIDL's from POP3 Server

Retrieve a list of UIDLs from a POP3 server. A UIDL is an identifier consisting of 1 to 70 characters in the range 0x21 to 0x7E, which uniquely identifies a messages within a mailbox and persists across sessions.

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, MailMan, StringArray;

...

procedure TForm1.Button1Click(Sender: TObject);
var
mailman: HCkMailMan;
sa: HCkStringArray;
uidl: PWideChar;
i: Integer;
numUidls: Integer;

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

mailman := CkMailMan_Create();

CkMailMan_putMailHost(mailman,'pop.example.com');

CkMailMan_putPopUsername(mailman,'myLogin');
CkMailMan_putPopPassword(mailman,'myPassword');

CkMailMan_putMailPort(mailman,995);
CkMailMan_putPopSsl(mailman,True);

sa := CkMailMan_GetUidls(mailman);
if (CkMailMan_getLastMethodSuccess(mailman) = False) then
  begin
    Memo1.Lines.Add(CkMailMan__lastErrorText(mailman));
    Exit;
  end;

// Download each email by UIDL.

i := 0;
numUidls := CkStringArray_getCount(sa);
while i < numUidls do
  begin
    uidl := CkStringArray__getString(sa,i);
    Memo1.Lines.Add(uidl);
    i := i + 1;
  end;

CkStringArray_Dispose(sa);

CkMailMan_Dispose(mailman);

end;