Type Definition fltk::gl::PFNGLLGPUCOPYIMAGESUBDATANVXPROC

type PFNGLLGPUCOPYIMAGESUBDATANVXPROC = Option<unsafe extern "C" fn(u32, u32, u32, u32, i32, i32, i32, i32, u32, u32, i32, i32, i32, i32, i32, i32, i32)>;