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WGL_NV_vertex_array_range
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http://oss.sgi.com/projects/ogl-sample/registry/NV/vertex_array_range.txt
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void * wglAllocateMemoryNV (GLsizei size, GLfloat readFrequency, GLfloat writeFrequency, GLfloat priority)
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void wglFreeMemoryNV (void *pointer)