Possible Duplicate:
What is the most effective way to setup a Notebook with transparent background but solid contents?
When MMA 8 starts, a floating image of spikey is shown. As you can see the image has no rectangular border and the contents of the screen outside the spikey body are visible. We could say that the spikey image has a transparent background.
How do we achieve this effect in MMA?
This is my attempt:
(* Display splash screen for t seconds*)
DisplaySplash[ t_] := (splashnb = CreateWindow[DocumentNotebook[{Graphics[Disk[]] }],
ShowCellBracket -> False, Deployed -> True,
ShowGroupOpener -> False, WindowSize -> All,
WindowMovable -> False, WindowElements -> {},
WindowFrame -> "Frameless",
WindowFrameElements -> None,
Background -> None,
WindowTitle -> None];
Pause[t];
NotebookClose[splashnb];)
(* Display splash screen for t seconds*)
DisplaySplash[5];
As you see, even if the window has Background-> None, a white rectangular background surrounds the black disk and covers the underlying screen contents. Changing the window opacity, changes also the disk opacity, so it is not an option.
Can you suggest a solution?
