Type Definition glu_sys::glu::PFNGLCOPYTEXSUBIMAGE2DEXTPROC

type PFNGLCOPYTEXSUBIMAGE2DEXTPROC = Option<unsafe extern "C" fn(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, x: GLint, y: GLint, width: GLsizei, height: GLsizei)>;