MSG_MOUSE_NONE     86 lib/widget/mouse.c     mouse_msg_t msg = MSG_MOUSE_NONE;
MSG_MOUSE_NONE    178 lib/widget/mouse.c     if (event->msg != MSG_MOUSE_NONE)
MSG_MOUSE_NONE    331 lib/widget/widget-common.c     w->mouse.last_msg = MSG_MOUSE_NONE;