Here are the data structures with brief descriptions:

CBGLView
CGLContext
CGLImage
CGLLight
CGLList
CGLMaterial
CGLParam
CGLParamBuffer
CGLSharedState
CGLSpecBuf
CGLTexture
CGLUquadricObj
CGLVertex
CGLViewport
CM3
CM34
CM4
Costgl_context
CTinyGDIContext
CTinyGLXContext
CTinyNGLXContext
CV3
CV4
CZBuffer
CZBufferPoint