Greetings
I’ve read WPF utilizes DirectX so I’m wondering if it is possible to create a Game Overlay with WPF. I have tried with Winforms or WPF by itself and the transparent forms or windows always cause problems for streaming software thus I’m wondering is it possible to do the following:

Create a WPF application which shows a Window on the desktop with all the options needed for the overlay. Once all the options is filled in you can press Update and the Overlay is created in the game with all the information on it. The WPF app itself won’t be visible on the stream. This means all the viewers will not have any trouble with it when the broadcaster changes settings.
More about the overlay
The overlay will be a scoreboard so it will need a set amount of info. For example:

So to sum up my question(s)
-
Can I make a WPF application which
dynamically creates a DirectX overlay
ingame? -
Since it needs to work in DirectX9,
is this project possible to make by a
single dev (me) which has little to
no exp with DirectX? -
If it is possible, where should I
start?
Thanks in advance for all your possible insights and replies!
What you want would be possible using D3DImage. It allows you to host any Direct3D content within WPF and also allows you to have overlay with transparency. Here is a simple example.