I'm trying to embedd my XNA Game into a WPF application.
For that, I'm getting all the pixels displayed on the actual render target, then write them in a writeable bitmap and display it on my WPF application.
(I followed this tutorial: http://remember.waralan.fr/?p=497 (Not in English though))
It works fine, but this line takes a lot of CPU:
And so I lose a lot of FPS.
I don't have any idea how I could get all pixels on the screen any other way... have you?