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PROCEDURE TFrameForm.ListBox1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
VAR
        Index : Integer;
  BEGIN
        Index := ListBox1.ItemAtPos(Point(x,y), True);
        IF Index = -1 THEN
           BEGIN
                ListBox1.Hint := '';
                Application.CancelHint;
                Exit;
           END;
        IF (ListBox1.Hint <> ListBox1.Items[Index]) THEN
           BEGIN
                Application.CancelHint;
                ListBox1.Hint := ListBox1.Items[Index];
                Application.HintPause := 50;// zeige schnell
           END;
  END;