[Gtk-sharp-list] Invisible popup Gtk.Window

[Christian Hoff]

rgladwell wrote:
> I'm using Cairo to draw onto a popup Gtk.Window to create a  "speech bubble"
> popup notification. However, the pop-up window I've created has a gray
> background that I can't get rid of: Is there anyway to set the pop-up window
> background so that it is invisible/transparent?
>   
Maybe this post will help: 
http://www.nabble.com/Invisible-popup-Gtk.Window-tp24183369p24183369.html

IIRC, here is also a project providing "speech bubble" functionality for 
Gtk#, but unfortunately I cannot recall its name.

Christian