Hi, i've been trying to add some code to my engine to create an opengl 3.1 context, to keep up to date with current technology. However, it's dosen't seem to do anything different... I though depreciated features where phased out in 3.1, and that you absolutely needed shaders to render anything, but all my old code still work and i can even render stuff without shaders. Is there a way to be sure the context i am creating is what i am trying to do?

For example, i added this pieces of code in my engine initialization procedure:

    if(!SetupPixelFormatDescriptor(hDC)){
	PostQuitMessage(0);
	return false;
    }

    #ifndef COMPILE_FOR_OPENGL_3_1_
        hRC = wglCreateContext(hDC);
        wglMakeCurrent(hDC, hRC);
    #else
        GLenum err = glewInit();
        HGLRC tempContext = wglCreateContext(hDC);
        wglMakeCurrent(hDC, tempContext);

	int attribs[] =
	{
        WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
        WGL_CONTEXT_MINOR_VERSION_ARB, 1,
        WGL_CONTEXT_FLAGS_ARB, 0,
        0};

	PFNWGLCREATECONTEXTATTRIBSARBPROC CreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
	
        hRC = CreateContextAttribsARB(hDC, 0, attribs);
	wglMakeCurrent(NULL,NULL);
	wglDeleteContext(tempContext);
	wglMakeCurrent(hDC, hRC);
    #endif

But for the reasons listed above, it dosen't seem to do much... I followed the new red book instruction (OpenGL Programming guide 7th edition).

Am i doing this right?

So, i would have to do

WGL_CONTEXT_FLAG_ARG | WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB

?

What's the point of using WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB if all it does is remove depreciated stuff?

And how something can be "foward compatible"?!? I mean, backward compatible make sense, but foward compatible sound like

"this is compatible with things that don't exist yet"!

i know what they mean, but it's weird...

Ahh, i think i just got how the attriblist array work... so, aren't i am missing a 0 at the end of my example above?

For example, this code terminate it with 2 zeros. I mean, mine too... but isin't the parameters working in pair? Mine have an uneven number of elements, does it matter?

I can't find any good documentation on this wglCreateContextAttribsARB function that explain the arguments properly.