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glVertexAttrib* == NULL ?

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Tried to pass on some vertex attributes to my shader programs but failed misserably, the function pointers to all glVertexAttrib* are set to NULL and thus I get a NULL pointer exception when trying to use them, however all other ARB functions works perfectly fine. What I am using is the nvidia SDK 8.0 headerfiles (i.e include glh/glh_extensions.h, gl/glext.h, gl/wglext.h). Now I am quite bedazzled to why all other functions work (e.g glUniformARB, glUseProgramARB etc etc) but the Vertex Attribs don't... What do i need to get them to work ? GetProcAddress needs handle to the modle where that function resides in, and i have really no clue to where it can be and google didn't help me, and tbh since the others work all fine that seems to be a unessesary thing to do.

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