I managed to write a small app that will enable Multisample ARB and it works. However, it does not work on a control such a a panel, of even a new form (window) even though wglChoosePixelFormatARB report that it support 8 smaples.
Is there a specific way to do this? I mean, does it only work with the app main and only form? Can it work on WinControls already created?
I found out the problem. I had to create a dummy window first, then it works.