(Delphi DLL) Transition from MailMan.FetchMultipleHeaders to MailMan.FetchUidlSet

Provides instructions for replacing deprecated FetchMultipleHeaders method calls with FetchUidlSet.

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, MailMan, StringArray, StringTable, EmailBundle;

...

procedure TForm1.Button1Click(Sender: TObject);
var
mailman: HCkMailMan;
saUidls: HCkStringArray;
stUidls: HCkStringTable;
numBodyLines: Integer;
bundleObj: HCkEmailBundle;
headersOnly: Boolean;
bundleOut: HCkEmailBundle;
success: Boolean;

begin
mailman := CkMailMan_Create();

// ...
// ...

saUidls := CkStringArray_Create();
CkStringArray_Append(saUidls,'aaa');
CkStringArray_Append(saUidls,'bbb');
CkStringArray_Append(saUidls,'ccc');

stUidls := CkStringTable_Create();
CkStringTable_Append(stUidls,'aaa');
CkStringTable_Append(stUidls,'bbb');
CkStringTable_Append(stUidls,'ccc');

numBodyLines := 5;

// ------------------------------------------------------------------------
// The FetchMultipleHeaders method is deprecated:

bundleObj := CkMailMan_FetchMultipleHeaders(mailman,saUidls,numBodyLines);
if (CkMailMan_getLastMethodSuccess(mailman) = False) then
  begin
    Memo1.Lines.Add(CkMailMan__lastErrorText(mailman));
    Exit;
  end;

// ...
// ...

CkEmailBundle_Dispose(bundleObj);

// ------------------------------------------------------------------------
// Do the equivalent using FetchUidlSet.
// Your application creates a new, empty EmailBundle object which is passed 
// in the last argument and filled upon success.

headersOnly := True;

bundleOut := CkEmailBundle_Create();
success := CkMailMan_FetchUidlSet(mailman,stUidls,headersOnly,numBodyLines,bundleOut);
if (success = False) then
  begin
    Memo1.Lines.Add(CkMailMan__lastErrorText(mailman));
    Exit;
  end;

CkMailMan_Dispose(mailman);
CkStringArray_Dispose(saUidls);
CkStringTable_Dispose(stUidls);
CkEmailBundle_Dispose(bundleOut);

end;