(Delphi ActiveX) Transition from Imap.Sort to Imap.QueryMbx

Provides instructions for replacing deprecated Sort method calls with QueryMbx.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

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
imap: TChilkatImap;
searchCriteria: WideString;
bUid: Integer;
sortCriteria: WideString;
msgSetObj: IMessageSet;
mset: TMessageSet;
success: Integer;

begin
imap := TChilkatImap.Create(Self);

// ...
// ...

searchCriteria := 'FROM bob@example.com';
bUid := 1;
sortCriteria := 'DATE SUBJECT';

// ------------------------------------------------------------------------
// The Sort method is deprecated:

msgSetObj := imap.Sort(sortCriteria,'utf-8',searchCriteria,bUid);
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.

// The following properties are used instead of function arguments.
imap.SortCriteria := 'DATE SUBJECT';
imap.SearchCharset := 'utf-8';

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