[news.eclipse.newcomer] How to give an SWT Scale a glow-effect ...

[Abdeltif.Nouqrat@xxxxxxx (Abdeltif Nouqrat)]

Hi all,
I'm writing an SWT application as a wav player displaying a Scale showing 
the progress of the played wav file.
I want to add a glow effect to the left of the Scale caret.

Any idea how to do this.
Or should I use another Widget? 

N.B.: I don't want use a Progressbar

Thanks in advance & Best regards
Abdeltif Nouqrat