How to change wait note text at runtime

Many a times it is needed to show updates on wait notes. This can be achieved with the following:
The resource file

RESOURCE DIALOG r_waitnote
{
flags = EAknWaitNoteFlags;
buttons = R_AVKON_SOFTKEYS_CANCEL;
items =
{
  DLG_LINE
  {
      type = EAknCtNote;
      id = EGeneralNote;
      control = AVKON_NOTE
      {
          layout = EWaitLayout;
          singular_label = "Receiving File  : %d Bytes";
          plural_label ="%d %% Recieved";
          imagefile = "z:\\system\data\avkon.mbm";
          imageid = EMbmAvkonQgn_note_progress;
          imagemask = EMbmAvkonQgn_note_progress_mask;
          animation = R_QGN_GRAF_WAIT_BAR_ANIM;
      };
  }
};
}

Here singular_label is what will be shown as soon as the dialog is executed. To change the label CAknWaitNotes SetTextL function is used.

• Create and Execute the dialog

iDlg = new(ELeave)CAknWaitDialog( (REINTERPRET_CAST(CEikDialog**,&iDlg)));
iDlg->SetTone( CAknNoteDialog::EConfirmationTone );
iDlg->SetCallback( this );
iDlg->SetTextL(_L("Please Wait..."));
iDlg->ExecuteLD(R_WAITNOTE);

• Change label as and when required

_LIT(KFormat,"%d %% Recieved");
str.Format(KFormat,kb);
iDlg->SetTextL(str)

• Dismiss the dialog

if(iDlg)
{
iDlg->ProcessFinishedL();
iDlg = NULL;
}