rootless mode

[Ian Burrell]

Robert Collins wrote:
> I've been thinking about rootless mode.
> 
> Here's  my current thoughts:
> 
> 1) We create a real win32 window for each X window. 

I think we only need a Win32 window for each top-level X window.

> 2) We use SetWindowLong to store the X window pointer in the WIN32
> struct, so that when a message arrives to that windowclass's WindowProc,
> we can lookup the X window the message belongs to.
> 3) We use WindowPrivates to store the WIN32 related window HANDLE and
> other gunk.
> 
> I don't know how we go about telling X it's rootless - Alan, I'm hoping
> you can jump in here and say 'do X, Y and Z'.
> 
> Anyway, whilst I won't have time to be a significant contributor, I hope
> to have a proof-of-concept patch against the Native GDI engine shortly.
> 

It would be nice if the rootless mode was orthogonal to the engine. I 
think this is doable. For the shadow modes, the image is blitted from 
the framebuffer into the individual windows instead of the screen 
window. I can see problems with X and Win32 having different ideas about 
   clipping and overlapping.

I have been looking at the XDarwin code. They have a rootless mode. Some 
of the ideas for wrapping

  - Ian

-- 
iburrell@stanfordalumni.org
http://www.znark.com/