Checking for OpenGL Extensions using Glew

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Peter Scheutz
 #1
Does somebody know how I, *USING GLEW* (*not by getting the extentions string*), check if an OpenGL extention is available?

This http://glew.sourceforge.net/basic.html suggests, that there are globals I can check.

For example, how do I see if Glew loaded glActiveTextureARB ?

Thanks in advance.