I am having an issue with a borderless transparent window that works like an overlay for a game. With Aero on, the performance is stable but as soon as I turn off Aero the fps drops from 120 to 30 fps. Read that this has to do with DWM and transparency and that wpf renders in software mode instead of hardware acc.
Is there a way to force the window to be run in hardware mode instead of software no matter if Aero is disabled or enabled?
Thanks.,