Type Definition glu_sys::glu::PFNGLMAPVERTEXATTRIB2DAPPLEPROC

type PFNGLMAPVERTEXATTRIB2DAPPLEPROC = Option<unsafe extern "C" fn(index: GLuint, size: GLuint, u1: GLdouble, u2: GLdouble, ustride: GLint, uorder: GLint, v1: GLdouble, v2: GLdouble, vstride: GLint, vorder: GLint, points: *const GLdouble)>;