shutdown dialogs and argb visuals

[Marco Martin]

Hi all,
want to talk a bit about the shutdown dialog, i know i isn't strictly plasma, 
but it's nice to have a consistent feel with it eheh :)
since the shutdown dialog is using plasma themes i was trying to make the svg 
to display properly, having semi transparent areas the window shoud have argb 
visuals enabled.
i tried to enable them with the code used in plasma and krunner (that really 
it's black magic to me btw :P) and it works ok, except that the fade out of 
the screen when composite is on,
that breaks when i put
KApplication a(dpy, visual ? Qt::HANDLE(visual) : 0, colormap ? 
Qt::HANDLE(colormap) : 0);

instead of KApplication a(true)
and only if the fade out effect of kwin is used.

if i put a return false
in KSMShutdownFeedback::start()
the software effect it's still rendered correctly

am i getting something terribly wrong? the x stuff are really things arcane to 
me, so it could be everything :P

Cheers,
Marco Martin
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