C++ OpenGL Window and Context creation framework / library

Question

I'm searching for an multi platform OpenGL framework that abstracts the creation of windows and gl contexts in C++. I'd like to have an OO representation of Window, Context & co where i can instantiate a Window, create a Context and maybe later set the window to fullscreen.

I'm thinking about implementing this myself for xgl, wgl and agl. But before

So here comes the Question:

Which libraries / frameworks should i check out first, before inventing the wheel again?

Edit: So far named libraries:

• glut
• Qt
• SDL
• gtkglext
• wxwdigets
• SFML

Answer 1

Glut (C), Qt (C++), SDL (C).

Answer 2

wxWidgets is another alternative, but may also be too heavyweight.

Answer 3

SMFL is another, similar to SDL, but takes a more object oriented approach.