MOUSE_FLAGS
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS)