Has anyone used the GWEN gui library in their renderer? I have heard some very good things about this library, and want to see if I can utilize it as the GUI system in my OpenGL application.

I am having trouble finding documentation on how to use library. I have managed to find an explanation on how to write a custom back end, specific to your rendering system, but nothing on how to implement GUIs with it (e.g. how does the event system work, how to set up a layout, control usage, etc.)

There seems to be quite a few forks of the library on github, Im also not sure which fork would be the best to use. From the code in the forks, I am finding it difficult to figure out how to actually use it.

https://sites.google.com/a/facepunchstudios.com/gwen/

On that site most of the links seem to dead, including the link in the tutorial section. Does anyone know where to find tutorials and/or api documentation for the library?

Thanks