Programming language for opengl screenshot software

I need to develop a multiplatform software that takes scre开发者_开发技巧enshots from opengl games without affecting the game in performance, it will run in the background and will add a watermark to my screenshots.

What language should i use? I thought of Perl / Python. Anyone can point me out something to start?

Thanks!

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I would suggest C++. That way you can use OpenGL and DirectX libraries and API calls natively. Libraries that provide such functionality to other languages typically abstract the good stuff away from reach.

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The language you know best that has some sort of OpenGL Bindings.

My personal preference for such kind of applications is C, C++ or (if available) C# but it's a simple matter of preference.

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Do you need to add a watermark right when you take the screenshot? It would be a lot easier to simply add the watermark later to the static image, as many applications can do this (e.g. Photoshop).

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Have you thought about modifying Shutter for your purpose? It is written in Perl.