Hi, I am not new to OpenGL, but not an expert. Many tutorials teach how to draw, 3D, 2D, projections, orthogonal, etc, but How about setting a the view? (NSOpenGLView in Cocoa, Macs).

For example I have this:

- (id) initWithFrame: (NSRect) frame
{
    GLuint attribs[] = { //PF: PixelAttibutes
            NSOpenGLPFANoRecovery,
            NSOpenGLPFAWindow,
            NSOpenGLPFAAccelerated,
            NSOpenGLPFADoubleBuffer,
            NSOpenGLPFAColorSize, 24,
            NSOpenGLPFAAlphaSize, 8,
            NSOpenGLPFADepthSize, 24,
            NSOpenGLPFAStencilSize, 8,
            NSOpenGLPFAAccumSize, 0,
            0
        };
    NSOpenGLPixelFormat* fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes: (NSOpenGLPixelFormatAttribute*) attribs];
return self = [super initWithFrame:frame pixelFormat: [fmt autorelease]];
}

And I don't understand very well their usage, specially when combining them.

For example:

If I want my view to be capable of full screen should I write NSOpenGLPFAFullScreen only ? or both? (by capable I mean not always in full screen)

Regarding Double Buffer, what is this exactly? (Below: Apple's definition)

If present, this attribute indicates that only double-buffered pixel formats are considered. Otherwise, only single-buffered pixel formats are considered

Regarding Color: if NSOpenGLPFAColorSize is 24 and NSOpenGLPFAColorSize is 8 then it means that alpha and RGB components are treated differently? what happen if I set the former to 32 and the later to 0?

Etc, etc,In general how do I learn to set my view from scratch?

Thanks in advance.

Ignacio.