Excluding certain programs from transparency

[houghi]

Hello,

I am in the process of moving from Windowmaker to XFCE as it is able to
work in the combination of NVidea drivers, dualscreens not in Xinerama and
my screens. I work with openSUSE 11.2.

I have enabled transparency which works well. However I would like to know
if it is possible to exclude some programs to NOT be transparent. These
would be basically mplayer and gmplayer so I can still watch movies and tv
while working on my other screen.

houghi
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