Mac OS X - how to darken screen?

[David Bovill]

Why not simply create a stack, set the bgcolor to black, set the rect to
whichever screenrect, and the blendlevel to a suitable level  (40?) -
probably make it a systemwindow?

On 17 September 2010 16:30, Ken Ray <kray at sonsothunder.com> wrote:

> >   I want to darken my Mac screen (not just a stack window) the way a
> slide
> > presentation would do it at its beginning, and then bring it up again to
> > reveal
> > what has been changed. Does anyone have an AppleScript or a shell()
> command
> > for
> > this that can be run from Rev?
> >
>
> There are a couple of AppleScripts to do this, but both of these are
> "messy":
>
> http://www.mactipper.com/2008/03/change-monitor-brightness-using.html
>
>
> http://macosx.com/forums/unix-x11/293662-screen-brightness-through-terminal.<http://macosx.com/forums/unix-x11/293662-screen-brightness-through-terminal.%0Ahtml>
>