Function window_wait

deps/tesseract/cutil/callcpp.cpp:111–124

char window_wait(ScrollView* win) {
  SVEvent* ev;
  // Wait till an input or click event (all others are thrown away)
  char ret = '\0';
  SVEventType ev_type = SVET_ANY;
  do {
    ev = win->AwaitEvent(SVET_ANY);
    ev_type = ev->type;
    if (ev_type == SVET_INPUT)
      ret = ev->parameter[0];
    delete ev;
  } while (ev_type != SVET_INPUT && ev_type != SVET_CLICK);
  return ret;
}
#endif

void reverse32(void *ptr) {