enum _PRL_UIEMU_MMKEY {
  PRL_UIEMU_MMKEY_SWIPE_LEFT_EDGE = 19,
  PRL_UIEMU_MMKEY_SWIPE_RIGHT_EDGE = 20,
  PRL_UIEMU_MMKEY_SWIPE_TOP_EDGE = 21,
  PRL_UIEMU_MMKEY_SWIPE_BOTTOM_EDGE = 22
};