Function isKeyEmpty

src/env.cpp:882–914

}

bool isKeyEmpty(HKEY key)
{
  // check for any values
  if (keyHasValues(key)) {
    return false;
  }

  auto r = forEachSubKey(key, [&](const wchar_t* name) {
    // a subkey exists, recursively check if it's empty
    auto subkey = openRegistryKey(key, name);

    if (!subkey) {
      // can't open, stop
      return false;
    }

    if (!isKeyEmpty(subkey.get())) {
      // not empty, stop
      return false;
    }

    // empty, go on
    return true;
  });

  if (!r) {
    // something went wrong or some subkey has values
    return false;
  }

  // key has no values and has either no subkeys or all subkeys are empty
  return true;
}

void deleteRegistryKeyIfEmpty(const QString& name)
{