Type Definition glu_sys::glu::PFNGLCOPYTEXSUBIMAGE3DEXTPROC

type PFNGLCOPYTEXSUBIMAGE3DEXTPROC = Option<unsafe extern "C" fn(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, x: GLint, y: GLint, width: GLsizei, height: GLsizei)>;