Java SWT - 透明Shell上的文本？

In Java SWT, is there a way to draw text on a transparent shell so that only the text appears visible? What I would like to do is have the text appear on my desktop without any background window. Using shell.setAlpha() will make the entire shell transparent, including any elements that appear on it (which I am trying to avoid).In Java SWT, is there a way to draw text on a t