Hi all,

I look at the gdk-directfb implementation of the gdk-backend and I'm 
very intersted on the
alpha channel. A can set the opacity of a top level window using the 
directfb engine, but for
the other window I don't have a good surface to apply it. So I suppose 
that it can be possible
to change the GdkWindow of an object and use and GdkWindow implemented 
with the alpha channel. I try
to attach to the realize event and change the window but without 
success. The operation does't fail
but I see only a gray surface. The realize use the same attribute of the 
widget and change the window
type and renizialize the private data. So I suppose that wher the system 
try to call the begin paint
use the new surface insted of the old one and I can reuse the 
set_opacity. It can be a solution?

Regards Michael

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