i'm not sure if this was the intended behaviour but it stopped my usage of ogre in an existing opengl window,
i'm using a gui system where the underlying windows are all abstracted away, so its not possible to get at the parentWindowHandle.
currently using currentGLContext, I get nothing but the viewport background color, but with the applied patch, ogre renders into the existing context.
patch
@cabalistic - this looks fairly straightforward but if you could give it the once-over in v1-6 I'd appreciate it :)
Looks straightforward enough. It was definitely broken; I did a quick test and currentGLContext was working for me. Furthermore it didn't break the way my app was originally embedding Ogre. Committed to Shoggoth.