OpenGL/Qt on Independant Display ?

Hi all,
I would like to configure one of my display outputs so that Windows cannot access it with any window, pop-up or mouse pointer.
But I would also like to be able to use OpenGL or Qt on that display output.
Does anyone know how I can achieve this goal ?

  1. Is it possible to restrict Windows access to a part of an Extended Desktop ?
  2. Is is possible to use OpenGL or Qt on an Independant Display ?
    Thanks a lot.
    Best regards,
    Vincent