An excellent source of information on the DWM is Greg Schechter's blog at
http://blogs.msdn.com/greg_schechter/default.aspx
> Can windowed Direct 3D and/or OpenGL rendering be composited with the
> desktop using the alpha channel generated using those APIs?
Yes, that would happen automatically.
> Could I implement my own variant of Flip 3D or is that using private
> APIs?
You can't replace the behavior in the desktop, but you can write your own
application to do something with the thumbnails of running applications,
like Flip3D.
-Pablo
"Chris Hill" <Chris244@aol.com> wrote in message
news:44936f62.1676852226@msnews.microsoft.com...
> I'm looking for more information about the DWM and associated
> technologies. I looked in dwmapi.h and the SDK documentation for
> those APIs, but I guess I was expecting more functionality than I am
> seeing there. It seems like the features exposed are specifically
> related to Microsoft needs (like glass) and Alt+Tab, but that there
> isn't much beyond that in terms of generically producing information
> for or consuming information from the DWM.
>
> For example:
> Can windowed Direct 3D and/or OpenGL rendering be composited with the
> desktop using the alpha channel generated using those APIs?
>
> Could I implement my own variant of Flip 3D or is that using private
> APIs?
>
> It may be that there just isn't any more functionality that is
> publically exposed currently, but I wanted to verify that and make
> sure I'm not looking in the wrong place.
>
> Thanks,
>
> Chris