'glGetTexLevelParameter' was not declared in this scope

Alright, so before anyone asks, yes I do have <gl/gl.h> inc开发者_JS百科luded. Anyone have any idea why this one function, glGetTexLevelParameter, isn't showing up?

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Because that's only the base name of the function. You need either the integer array or float array form, as in glGetTexLevelParameteriv or glGetTexLevelParameterfv.

See this link for details.