OpenGL Frame counter utility like FRAPS possible..?

Hello sorry to bother everyone but does anyone either have access to or know if its possible to have a Open GL utility that would allow one to see the framerate in a Opengl game that does not have a framerate counter…? Ala fraps.

To have my cake and eat it too…if this same app could average frames for a given period life would be good and I would be willing to pay a small sum for such a app.

Pierre PAPA DOC Legrand

Fraps 1.6?