Hello,
I don't have your OS, or log files to investigate.
If your software bypasses Windows Desktop Manager (
DWM) to talk directly to the graphics card, then yes, you won't have any update.
We can't get pixels if the card bypasses Windows, that is expected.
This should disappear in Windows 10 Anniversary Update as Windows changes the way graphics work and we would be able to get pixels in these conditions.
Regards,
Alban