Yes, that extension is present on my card, and I’m setting it using wglSwapIntervalEXT(0), but my frame-rate stays at 60. Can you think of any reason why this will not work?
If I disable double-buffering, frame-rate jumps to over 1000 fps.
Maybe my card (Nvidia) has an issue with this feature on a notebook? I’ll continue to look into that.
I am guessing that OpenGL does not care about vsync at all, and it is managed through Windows Wgl.
At least I can see an approximation of the true frame-rate by disabling double-buffer. This was my ultimate goal anyway, as I do not expect any of my apps to be released without double-buffering and vsync on.