[Xcb] using glX with xcb

[amand at frozenkiwi.net]

Hi !
I am working on a little wm with composite and opengl capabilities,  
and I think that I need to use xcb instead of xlib...
However, xcb is not very well documented yet (the tutorial is good,  
but too short...), and I have not found anything for xgl - apart the  
doxygen doc.
Is there some examples anywhere ?
Do I have to stuck in the use of xcb, or it is better to use the old,  
but well documented xlib ?

amand.