HelenOS sources

WNDMGT_EV_PENDING  428 uspace/lib/wndmgt/src/wndmgt.c 		case WNDMGT_EV_PENDING:
WNDMGT_EV_PENDING  347 uspace/lib/wndmgt/src/wndmgt_srv.c 	async_msg_0(exch, WNDMGT_EV_PENDING);
HelenOS homepage, sources at GitHub