Hello,

>  There's no real screen with Xinerama. You have one screen, one part of it
> being shown on one monitor, other part on other monitor. There's only the
> coordinates what matters.
aha!
that is what I very important to know for me!

>  I don't see what does this have to do with writing a new window
> decoration. If you want new titlebar buttons for such functionality, simply
> add support for them, and modify at least some existing decorations to use
> it. Just see how some other button is implemented in KWin, it's not very
> difficult. And, since you seem not to know much about KWin or WM things,
> don't be afraid to ask.
ok I will try now to implement a functionality of moving a window to one 
screen to another.

Thank you very much for your good support,
cheers,
stefan walkner
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