(Delphi DLL) Transition from Imap.FetchSingle to Imap.FetchEmail

Provides instructions for replacing deprecated FetchSingle method calls with FetchEmail.

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, Imap, Email;

...

procedure TForm1.Button1Click(Sender: TObject);
var
imap: HCkImap;
emailObj: HCkEmail;
headerOnly: Boolean;
email: HCkEmail;
success: Boolean;

begin
imap := CkImap_Create();

// ...
// ...

// ------------------------------------------------------------------------
// The FetchSingle method is deprecated:

emailObj := CkImap_FetchSingle(imap,1,False);
if (CkImap_getLastMethodSuccess(imap) = False) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// ...
// ...

CkEmail_Dispose(emailObj);

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

headerOnly := False;

email := CkEmail_Create();
success := CkImap_FetchEmail(imap,headerOnly,1,False,email);
if (success = False) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

CkImap_Dispose(imap);
CkEmail_Dispose(email);

end;