Have you been able to load any other extensions? I say that because maybe your extension loading code is wack. On the main opengl.org page a few days ago there was a news post about some functions this guy made that will load all extensions your card supports with one function call. Maybe you can try that and see what happens.
I think i have gone through that discussion. However i tried loading other extensions and it just work well. And When i downloaded a software fron nVidia, the software is not able to detect multisampling too.
i start to wonder is it due to the driver or the hardware???
I’d guess it’s the driver. Try opening the driver file in a hex editor and see if you find a “glSampleCoverageARB” string in there at all. That’s at least what I would do
Did you use the WGL_ARB_pixel_format functions to request a pixel format supporting FSAA prior to attempting to fill the glSampleCoverage function pointer?
Not sure if the driver is allowed to report WGL_ARB_multisampling without having a current pixelformat that it can be enabled on, BUT I thought it would be a good question to ask.
i did. glSampleCoverageARB are called after the pixel formatting.
Anyway i tried to use a hex editor and realize that there isn’t a glSampleCoverageARB function within the driver.(I did manage to find other extensions)
So what’s the problem??? since the return string of wglGetExtensionString did return "WGL_ARB_multisampling "