Delphi ActiveX

Transition from Imap.CheckForNewEmail to Imap.QueryMbx

Provides instructions for replacing deprecated CheckForNewEmail method calls with QueryMbx. Delphi ActiveX

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
imap: TChilkatImap;
msgSetObj: IMessageSet;
criteria: WideString;
bUid: Integer;
msgSet: TMessageSet;

begin
success := 0;

imap := TChilkatImap.Create(Self);

// ...
// ...

// ------------------------------------------------------------------------
// The CheckForNewEmail method is deprecated:

msgSetObj := imap.CheckForNewEmail();
if (imap.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;

// ...
// ...

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

criteria := 'new-email';
bUid := 1;

msgSet := TMessageSet.Create(Self);
success := imap.QueryMbx(criteria,bUid,msgSet.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(imap.LastErrorText);
    Exit;
  end;
end;