I know it’s possible to enable the Coverage Sampled AA through the control Panel.
It’s also possible to create a FBO with Coverage Sampled AA with the extension GL_NV_framebuffer_multisample_coverage.
However, I dont want to create a FBO. I just want my application to decide the level of MSAA/CSAA on the back buffer with the function wglChoosePixelFormatARB. Is there any way to do that in OpenGL?